CN2874782Y - Battery module - Google Patents
Battery module Download PDFInfo
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- CN2874782Y CN2874782Y CNU2005201293557U CN200520129355U CN2874782Y CN 2874782 Y CN2874782 Y CN 2874782Y CN U2005201293557 U CNU2005201293557 U CN U2005201293557U CN 200520129355 U CN200520129355 U CN 200520129355U CN 2874782 Y CN2874782 Y CN 2874782Y
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- battery
- separator
- assembled battery
- electrode nipple
- electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Connection Of Batteries Or Terminals (AREA)
Abstract
A battery module has stacked therein a plurality of flat cells each formed by sealing a power generating element with a package member and deriving to the exterior electrode tabs from the package member and has the electrode tabs of the flat cells connected electrically. The battery module includes electrically insulated spacers adapted to nip the electrode tab from the opposite surface sides of the electrode tab along the stacking direction of the plurality of flat cells. The paired spacers nipping the electrode tab include an engaging member adapted to fasten the electrode tab by being passed through the electrode tab along the stacking direction.
Description
Technical field
The utility model relates to a kind of battery, particularly relates to a kind of by the stacked assembled battery that forms of a plurality of flat cells.
Background technology
Encapsulate electric producing component and be known from packaging part to the flat thin battery (being called " flat cell " hereinafter) that outside end tab shape electrode nipple forms by using such as packaging parts such as stack membranes, wherein said electric producing component forms by stacked negative electrodes plate.In recent years, by stacked a plurality of this flat cells and simultaneously be electrically connected each flat cell and produce the practice of the assembled battery of high output and high power capacity and become fashion (unexamined Japan Patent publication JP-A-200-195480 of reference and JP-A-2001-256934) with series connection and/or parallel way.
For example, for the assembled battery that will so form is installed on the vehicle, reduce the whole volume of the distance compression assembled battery between the adjacent flat battery and give a kind of necessity of importing the structure that influences of being vibrated less of assembled battery to have obtained common recognition thereby be devoted to maximum possible degree ground.When vibration is applied in and when being born by assembled battery, may causes producing stress in order to the part that is connected to each other electrode nipple and concentrate.
The utility model content
Provide a kind of assembled battery, the compactedness that it is vibrated the influence of input only a littlely and can promote volume order of the present utility model.
Assembled battery of the present utility model comprises:
A plurality of flat cells, each flat cell is equipped with the packaging part of the electric producing component of encapsulation and guides outside electrode nipple into from packaging part, described a plurality of flat cell is by stacked, and is electrically connected mutually along the electrode nipple of stacked direction flat cell adjacent one another are, and
Insulation board, described insulation board along the stacked direction of described a plurality of flat cells from described electrode nipple opposed surface side holding electrode joint and have electrical insulation property.
Preferably, in the insulation board of the described paired configuration of holding electrode joint is used for another electrode nipple of clamping simultaneously.
Preferably, described each insulation board interconnects.
Preferably, the insulation board of the described paired configuration of holding electrode joint is provided with fastener, and this fastener is suitable for fixing electrode nipple by passing described electrode nipple along stacked direction.
Preferably, described electrode nipple is provided with the through hole along stacked direction, and described fastener is provided with protuberance and recess, described protuberance is suitable for inserting in the through hole on one of insulation board of being arranged on described paired configuration, and the female portion is suitable for allowing to insert therein in the insulation board that is arranged on described paired configuration front end on another, that insert the protuberance in the described through hole.
Preferably, described insulation board is respectively arranged with protuberance and recess, described protuberance is arranged on along on one of apparent surface of stacked direction, and the female portion is arranged on along among the apparent surface of stacked direction another, and described protuberance and the female portion are arranged on same the straight line along stacked direction.
Preferably, described insulation board is respectively arranged with the recess of the part periphery that is used to expose the electrode nipple that is held, and the voltage detection department that is used as the voltage that detects each described flat cell by the zone of described recess exposed electrodes joint.
Preferably, described assembled battery also comprises connector, and this connector is provided with the splicing ear that can be connected in described voltage detection department and removably is secured to described voltage detection department.
Preferably, described a plurality of voltage detection departments are arranged on same the straight line along stacked direction, and described connector is provided with a plurality of splicing ears that are provided with corresponding to the position of described each voltage detection department.
Preferably, described voltage detection department is provided with the stacked voltage detecting terminal block that is connected in described electrode nipple.
Preferably, the stacked electrode nipple that is clamped on the electrode nipple that is provided with described voltage detecting terminal block is provided with the recess that is used to admit described voltage detecting terminal block.
Preferably, described electrode nipple is connected to each other by ultrasonic bonding, and described electrode nipple compresses or use rivet to be connected with described voltage detecting terminal block by punching press.
Preferably, described electrode nipple compresses or uses the rivet with head to be connected with described voltage detecting terminal block by punching press, and each insulation board is provided with recess, and the described head that this recess allows to compress the rivet that is formed at lip-deep lug boss of described voltage detecting terminal block or voltage detecting terminal block surface by punching press inserts wherein.
Preferably, described insulation board is provided with the openning portion of running through formation along stacked direction, described a plurality of electrode nipple piles up setting, near described openning portion, and by the insulation board clamping of described paired configuration, and described a plurality of flat cell is electrically connected by the electrode nipple that interconnects near described openning portion.
Preferably, described electrode nipple is by the insulation board clamping, and the outside of the insulation board of the close described paired configuration of the part of described electrode nipple, and described a plurality of flat cell is electrically connected by the electrode nipple that interconnects near the described insulation board outside.
Preferably, described assembled battery also comprises positive and negative assembled battery lead-out terminal, and wherein said insulation board is provided with the openning portion of running through formation along stacked direction, one of described electrode nipple and described assembled battery lead-out terminal stack setting, near described openning portion, and by the insulation board clamping of described paired configuration, and each described assembled battery lead-out terminal is electrically connected on described flat cell by electrode nipple and this assembled battery lead-out terminal that connects near described openning portion.
Preferably, a plurality of stacked flat cells connect in the mode of being connected in series by the different electrode nipple of electrode electrically connected, and described positive assembled battery lead-out terminal and negative assembled battery lead-out terminal are electrically connected on the battery that is positioned at place, two opposite ends along stacked direction.
Preferably, described insulation board is equipped with insulating barrier with electrical insulation property and the heat dissipating layer that has more high-heating radiation character than described insulating barrier.
Preferably, described a plurality of electrode nipple stacks setting, its end is near the outside of described insulation board, and by the insulation board clamping of described paired configuration, and described a plurality of flat cell is electrically connected by the described end that interconnects near the electrode nipple in the described insulation board outside.
Preferably, described assembled battery also comprises position that is used for fixing separator and the housing that holds a plurality of flat cells.
Adopt the technical solution of the utility model, can farthest reduce the distance between each battery, make it possible to achieve the compactedness of whole assembled battery.And, the opposed surface side holding electrode joint of insulation board by will having electrical insulation property along the stacked direction of described a plurality of flat cells from described electrode nipple, make assembled battery show the shock strength of increase, demonstrate insensitivity vibration input influence.
From the explanation that provides below in conjunction with the preferred embodiment shown in the accompanying drawing, except illustrate above those the purpose of this utility model, feature and characteristic will become clearly.
Description of drawings
Fig. 1 is a perspective view, illustrates the assembled battery according to the utility model first embodiment;
Fig. 2 is a perspective view, illustrates to be in assembled battery under flip vertical and the decomposing state, shown in Fig. 1;
Fig. 3 is a plane graph, illustrates the battery unit that is included in the housing;
Fig. 4 is the cross section view of the line 4-4 intercepting in Fig. 3;
Fig. 5 is the cross section view of the line 5-5 intercepting in Fig. 3;
Fig. 6 is a perspective view, illustrates by pulling down the battery unit that insulating lid comes out from the battery unit main body;
Fig. 7 is a perspective view, illustrates from the observed same battery of the direction that is different from Fig. 6 unit;
Fig. 8 is a perspective view, illustrates from the observed same battery of bottom surface side unit;
Fig. 9 is a perspective view, illustrates the main body of battery unit;
Figure 10 is a perspective view, illustrates three sub-components that form the battery unit main body, and its front surface side is positioned at the front side;
Figure 11 is a perspective view, illustrates sub-component, thereafter the face side directed forward;
Figure 12 is a perspective view, illustrates from observed these sub-components of basal surface side;
Figure 13 is a decomposition diagram, illustrates the main body of battery unit, front surface side directed forward;
Figure 14 is a decomposition diagram, illustrates the main body of battery unit, rear surface side directed forward;
Figure 15 is a conceptual scheme, with helping illustrate flat cell and the stacked state of insulation board in the battery unit main body;
Figure 16 is a conceptual scheme, with help to illustrate each flat cell in the battery unit main body status of electrically connecting;
Figure 17 is a perspective view, illustrates an example of the flat cell that is included in the battery unit main body;
Figure 18 A is a perspective view, illustrates an example of the insulation board that is included in the battery unit main body; Figure 18 B is a perspective view, illustrates the same dielectric plate that is under the forward and backward surperficial topsy-turvydom; And Figure 18 C is the cross section view of the line 18C-18C intercepting in the 18A;
Figure 19 A and Figure 19 B are perspective views, and usefulness helps that an electrode nipple of assembled battery is described and lead-out terminal is stacked by a pair of insulation board and the state of clamping;
Figure 20 A and Figure 20 B are perspective views, with help illustrate be stacked in Figure 19 A view than the electrode nipple of the flat cell on the upper/lower positions side by the further state of clamping;
Figure 21 A, Figure 21 B and Figure 21 C are perspective views, with helping illustrate the state of a plurality of electrode nipples by the stacked clamping of a pair of insulation board;
Figure 22 A is a perspective view, illustrates the voltage detection department on the battery unit main body front surface side; And Figure 22 B is a perspective view, illustrates the state that connector inserts the insulating lid of the front surface that is secured to the battery unit main body;
Figure 23 A is a perspective view, illustrates the state that connector has been extracted from the state of Figure 22 B; Figure 23 B is a perspective view, illustrates insulating lid; And Figure 23 C is a perspective view, illustrates connector;
Figure 24 A is a plane graph, illustrates the major part of the flat cell of the voltage detecting terminal block with stacked connection on electrode nipple; Figure 24 B is the cross section view of the line 24B-24B intercepting in Figure 24 A, and the expression electrode nipple compresses the state that is connected with the voltage detecting terminal block by punching press; And Figure 24 C is the cross section view of major part, illustrates the mode of connector being inserted voltage detection department;
Figure 25 A is a cross section view, illustrates to be equipped with to be used to admit the major part that compresses the insulation board of the recess that is formed on the lip-deep lug boss of voltage detecting terminal block by punching press; And Figure 25 B is a cross section view, illustrates the state that electrode nipple and voltage detecting terminal block are connected by rivet;
Figure 26 is with the view of helping illustrate the first sub-component assembling process;
Figure 27 is the view after Figure 26;
Figure 28 is the view after Figure 27;
Figure 29 is the view after Figure 28;
Figure 30 is the view after Figure 29;
Figure 31 is the view after Figure 30;
Figure 32 is with the view of helping illustrate the second sub-component assembling process;
Figure 33 is the view after Figure 32;
Figure 34 is with the view of helping illustrate the 3rd sub-component assembling process;
Figure 35 is the view after Figure 34;
Figure 36 is the view after Figure 35;
Figure 37 is the view after Figure 36;
Figure 38 is the view after Figure 37;
Figure 39 is the view after Figure 38;
Figure 40 is a cross section view, illustrates the assembled battery according to the utility model second embodiment;
Figure 41 is a perspective view, illustrates flat cell;
Figure 42 is a plane graph, illustrates the major part of electrode nipple by the state of the mutual clamping of insulation board;
Figure 43 is a cross section view, illustrates the mode of stacked flat cell;
Figure 44 is a cross section view, illustrates the mode that stacks of stacked flat cell;
Figure 45 is a cross section view, and the end that illustrates stacked electrode nipple is by the interconnected mode of gas tungsten arc welding (TIG welding);
Figure 46 is a view, and the end that illustrates stacked electrode nipple is by the interconnected mode of laser welding;
Figure 47 is a view, and the end that illustrates stacked electrode nipple is by the interconnected mode of friction stir pressure welding (friction agitation bonding);
Figure 48 is a view, illustrates the mode of stacked flat cell in according to the 3rd embodiment of the present utility model;
Figure 49 is the cross section view of the line 49-49 intercepting in Figure 48; And
Figure 50 is a cross section view, illustrates the assembled battery of the 3rd embodiment.
Embodiment
Now, execution mode of the present utility model is described with reference to the accompanying drawings.
(first embodiment)
The direction of the X-axis shown in Fig. 1 will be called assembled battery 50, battery unit 60, housing 70 etc. than length direction, and the direction of Y-axis is called its shorter direction.So, is arranged in Fig. 1 and is called front surface, and the surface that is positioned at than the length direction rear side is called the rear surface than the surface of length direction front side.In the following description, flat cell is abbreviated as simply " battery ".
With reference to figure 1 and Fig. 2, assembled battery 50 comprises battery unit 60 in housing 70, battery unit 60 comprises a plurality of (being 8 in described example) battery 100 (general reference 101-108).Assembled battery 50 is installed in such as on the vehicles such as automobile that for example produces the vibration that is delivered to battery unit 60 or electric train.Though not shown, can connect with the series-multiple connection connected mode by the assembled battery 50 of stacked any amount and with each assembled battery and form the on-vehicle battery group that meets required electric current, voltage and capacity.When each assembled battery 50 is connected with the series-multiple connection connected mode, use such as suitable connectors such as buses.Assembled battery 50 is used air cooling in use.A plurality of assembled batteries 50 are opened stacked with a space interval by flange between two parties, the cooling air channels of each assembled battery 50 is flow through and cools off in described each space as cooling air.By cooling air being flow through and cooling off each assembled battery 50, make battery temperature can reduce and suppress deterioration such as characteristics such as charge efficiencies.
Above-mentioned housing 70 comprises that shape resembles lower house 71 box, that be formed with opening 71a and upper shell 72, and upper shell 72 is configured for sealing the cap member of opening 71a.The edge part 71c that makes the edge part 72a of upper shell 72 center on the perisporium 71b of lower house 71 by crimping processing (with reference to the local amplifier section of figure 1) rolls.Lower house 71 and upper shell 72 are formed by wall thickness less steel plate or aluminium sheet, and each all forms the shape of regulation by pressure processing.
As shown in Fig. 3-Fig. 9, above-mentioned battery unit 60 comprises battery unit main body 80 and can be installed on the front surface of battery unit main body 80 and the insulating lid 91 and 92 of rear surface with freely dismantling, and battery unit main body 80 is by stacked eight batteries 100 and connect each battery 100 in the mode of being connected in series and form.
Battery unit main body 80 also comprise be used for holding electrode joint 100t and just with the separator 110 (corresponding to insulation board) of negative output terminal 140,150 (corresponding to the assembled battery lead-out terminal).Here, electrode nipple 100t is referred to as positive electrode joint 100p and negative electrode connector 100m.Positive electrode joint 100p general reference is corresponding to positive electrode joint 101p, 102p, 103p, 104p, 105p, 106p, 107p and the 108p of battery 101-108, and negative electrode connector 100m general reference is corresponding to negative electrode connector 101m, 102m, 103m, 104m, 105m, 106m, 107m and the 108m of each battery 101-108.And separator 110 general reference separator 121-138.
Insulating lid 91 and 92 is used for the front surface side and the rear surface side of clad battery unit main body 80.Insulating lid 91 and 92 position in the central is respectively arranged with and is used for equipped patchhole 91a, the 92a of specifically described connector 170 (with reference to Figure 23) below.Connector 170 is connected to the voltage detection department 160 (with reference to figure 6, Fig. 7 and Fig. 9) of the voltage that is used to detect battery 100.The purpose of carrying out voltage detecting is charging and the discharge in order to manage each assembled battery 50.Insulating lid 91,92 is the side guided plate 91b, the 92b that are provided with the insertion that is used for guidance connector 170 and extract within it, and and its periphery be provided with a plurality of snap fit pawl 91c, 92c, snap fit pawl 91c, 92c are used for making insulating lid 91,92 maintain static (with reference to figure 6 one Fig. 8) by engaging with separator 110 and lead-out terminal 140,150.
Refer again to Fig. 1 and Fig. 2, positive and negative lead-out terminal 140,150 passes notch 71d, 71e and draws by housing 70, and notch 71d, 71e are formed on the part of perisporium 71b of lower house 71.Patchhole 91a, the 92a of insulating lid 91,92 passes notch 71f similarly and is exposed to the outside of housing 70, and notch 71f is formed on the part of perisporium 71b.For four part places in housing 70 bights insert the through bolt (not shown), four part places on the bight of lower house 71 and upper shell 72 form bolt hole 73, and form bolt hole 111 at two part places of each separator 110.Reference numeral 93 expressions among Fig. 2 have the sleeve pipe in the bolt hole 111 that is inserted into separator 110, and Reference numeral 94 expressions remain to be placed the bolster between battery unit 60 and the upper shell 72.
With reference to figure 10-Figure 12, battery unit main body 80 forms by the first to the 33 sub-component 81,82 of assembling and 83.In Figure 10, shown in be in the extreme higher position first sub-component 81 by stacked three batteries 101,102 thereon and 103 and these batteries 101,102 and 103 are connected in the mode of being connected in series form.Shown in second sub-component 82 that mediates by stacked two batteries 104 thereon and 105 and these batteries 104 and 105 are connected in the mode of being connected in series form.Shown in be in extreme lower position the 3rd sub-component 83 by stacked three batteries 106,107 thereon and 108 and these batteries 106,107 and 108 are connected in the mode of being connected in series form.First sub-component 81 is provided with negative output terminal 150 thereon, and the 3rd sub-component 83 is provided with positive output terminal 140 thereon.On the side of rear surface, first sub-component 81 and second sub-component 82 are electrically connected by making in the face of the electrode nipple 103p in separator 110 outsides and 104m are connected to each other; By making electrode nipple 105p and 106m on the side of rear surface be connected to each other and similarly make second sub-component 82 and 83 electrical connections of the 3rd sub-component in the face of separator 110 outsides.The apparent surface of the battery 106 of the apparent surface of the battery 103 of first sub-component 81 and the battery 104 of second sub-component and the battery 105 of second sub-component 82 and the 3rd sub-component 83 combines by the dual coating band respectively.
The right side of Figure 15 constitutes the front surface side, and its left side constitutes the rear surface side.With reference to figure 13-Figure 15, battery unit main body 80 comprises 8 battery 101-108,18 separator 121-138 and two lead-out terminals 140 and 150.18 separator 121-138 are provided with half, respectively have nine on the front surface side He on the side of rear surface.For the convenience that illustrates, eight battery 101-108 sequentially are called the first battery 101-the 8th battery 108 from top to bottom along the stacked direction (vertical direction in Figure 15) of battery.Nine separator 121-129 on the front surface side sequentially are called the first separator 121-the 9th separator 129 from top to bottom along the stacked direction of battery.In like manner, nine separator 130-138 on the side of rear surface are called as the tenth separator 130-the 18 separator 138.
First-Di, 18 separator 121-138 so arrange so that the opposed surface side holding electrode joint 100t along the stacked direction of battery from electrode nipple 100t.Positive output terminal 140 comprises the plate-shaped bus-bars 141 on the positive electrode joint 108p that is stacked in the 8th battery 108 and is used to cover the resinite lid 142 that is arranged on the electrode on bus 141 portion of terminal.Negative output terminal 150 comprises the plate-shaped bus-bars 151 on the negative electrode connector 101m that is stacked in first battery 101 and is used to cover the resinite lid 152 that is arranged on the electrode on bus 151 portion of terminal.Bus 141 and 151 is all formed by copper coin.The electrode of positive output terminal 140 and resinite lid 142 when the past, face side was seen, are positioned in the right terminal portion of both sides portion of terminal of bus 141.On the contrary, the electrode of negative output terminal 150 and resinite lid 152 are positioned in the left terminal portion of bus 151.Incidentally, electrode nipple 100t and separator 110 in the apparent surface of the stacked direction of battery, the uper side surface among Figure 15 will be called as the front, and downside surface will be called as the back.Bus 141 and 151 has the paired through hole 143 and 153 that extends to the back along stacked direction from the front respectively.
Figure 17 illustrates first battery 101 as an example of battery 100.In Figure 16, the right side constitutes the front surface side, and the left side constitutes the rear surface side.With reference to Figure 16 and Figure 17, battery 100 is flat lithium rechargeable batteries, and it has packaging part 100a, as the sealing stack membrane; Stacked type electricity producing component (not shown), electric producing component is by sequentially stacked positive electrode plate, negative electrode plate and dividing plate form.In battery 100, the electrode nipple 100t that the end is electrically connected on electric producing component and is plate shape draws towards the outside from packaging part 100a, and positive electrode joint 100p and negative electrode connector 100m are along stretching out than the opposite side (front surface side and rear surface side) of length direction towards battery 100.Under the situation of the battery 100 that is provided with stacked type electricity producing component,, need with pressure compacting electricity producing component in order between adjacent battery lead plate, to keep evenly unified distance and to keep battery performance.Thereby each battery 100 is included in housing 70 makes electric producing component be able to compacting.
In Figure 17, Reference numeral 161 expression is stacked and be incorporated into terminal block (corresponding to the voltage detecting terminal block) on the negative electrode connector 100m, and a pair of through hole that is formed on the terminal block 161 of Reference numeral 162 expressions.In negative electrode connector 100m, be formed with a pair of through hole 109 that is communicated with the through hole 162 of terminal block 161 (with reference to figure 24B).Positive electrode joint 100p can optionally form through hole 109 thereon.Particularly, second, third, the 5th, the 6th and the 8th battery 102,103,105,106 and 108 positive electrode joint 102p, 103p, 105p, 106p and 108p have through hole 109 (with reference to Figure 13 and Figure 14) respectively.Through hole 109 and 162 extends to the back along stacked direction from the front.
Figure 18 A illustrate as an example of separator 110 the 4th, the 6th, the 12, the 14 and the 16 separator 124,126,132,134 and 136.Figure 19 A and Figure 19 B illustrate the negative electrode connector 101m of battery 101 and negative output terminal 150 by the state of a pair of separator 121 and 122 stacked clampings.Figure 20 A and Figure 20 B illustrate the positive electrode joint 102p of the battery 102 that is stacked on the upper/lower positions side by the state of further clamping in the figure of Figure 19 A.Figure 21 A, Figure 21 B and Figure 21 C illustrate a plurality of electrode nipple 101p and 102m by the state of a pair of separator 131 and 132 stacked clampings.
With reference to Figure 18, separator 110 forms plate shape, is used for opposed surface side holding electrode joint 100t along the stacked direction of a plurality of batteries 100 from electrode nipple 100t, and separator 110 is endowed electrical insulation property.
The material of separator 110 need not be particularly limited, but only needs to have electrical insulation property and be endowed the intensity that is enough to holding electrode joint 100t.For example, can use the resinous material of electric insulation.On the opposed end than length direction of separator 110, be formed with extend to from the front back, be used to the bolt hole 111 that allows sleeve pipe 93 (with reference to figure 2) to insert.By making separator 110 holding electrode joint 100t, make and when assembled battery 50 is subjected to vibrating, to suppress the vibration of electrode nipple 100t and prevent that the stress on the electrode nipple 100t is concentrated.As a result, thus can improve the durability of the durability of electrode nipple 100t and assembled battery 50.In addition, because separator 110 clampings that electrode nipple 100t is had electrical insulation property, so even the distance between each battery 100 when promptly the distance between each electrode nipple 100t reduces, can prevent that also electrode nipple 100t from forming short circuit mutually.As a result, reduce distance between each battery, can give assembled battery 50 essential space compactedness on the whole by maximum possible degree ground.Therefore, can provide assembled battery 50, the shock strength that it shows increase demonstrates the insensitivity of vibration input influence and the compactedness on the permission size.In addition, be arranged on separator 110 on the opposed end because battery unit main body 80 has along the stacked direction of battery, thus it can reduce electrode nipple 100t exposure and can be in the disposal of the convenient battery unit main body 80 of the assembly process of assembled battery 50.Incidentally, insulating lid 91 and 92 is by forming with separator 110 identical materials.
In separator 110, be formed with along stacked direction and extend to rear opening window portion 112 from the front.In described example, form the openning portion 112 of rectangle, they are positioned at two parts opening towards the both sides equi-spaced apart from central authorities than length direction along separator 110.Openning portion 112 faces the part (with reference to figure 19B and Figure 21 C) of the electrode nipple 110t that is held.
One in the paired separator of holding electrode joint simultaneously as one in the paired separator of another electrode nipple of clamping.For example, as shown in Figure 15, the negative electrode connector 101m of first battery 101 is by paired first and second separators 121 and 122 clampings, and the positive electrode joint 102p of second battery 102 is by paired the second and the 3rd separator 122 and 123 clampings.In this example, second separator 122 is used for clamping negative electrode connector 101m and the positive electrode of clamping simultaneously joint 102p.Use separator 122 as described above simultaneously, make to reduce negative electrode connector 101m on the upper position side and the distance between the positive electrode joint 102p on the lower position side.Thereby, reduce distance between each battery 100 by maximum possible degree ground, make it possible to achieve the compactedness of whole assembled battery 50.
Also as shown in Figure 19 A and Figure 19 B, the conjugate foramen 115 that extends to the back from the front is formed on the separator 122 on the lower position side, and snap fit pawl 116 is formed on the back of the separator 121 on the upper position side projectedly.Snap fit pawl 116 inserts and is arranged in the conjugate foramen 115 of the separator 122 on the back, so and engage with separator 122.That is, separator 110 combines by mutual insertion.As a result, can be easily and promptly realize the mutual connection of separator 110, and can be easily and promptly realize the work of holding electrode joint 110t.
With reference now to Figure 19-Figure 21,, the paired separator of holding electrode joint 100t is provided with the fastener 117 that is used to pass electrode nipple 100t and bonding electrodes joint 100t.Particularly, as shown in Figure 19, negative electrode connector 101m is formed with the through hole 109 that runs through along stacked direction thereon, and fastener 117 is provided with pin 113 and recess 114, on pin 113 separators 122 that are formed in the paired separator 121,122 and insert through hole 109, and recess 114 is arranged on another separator 121 in the paired separator 121,122 and the front end that allows to insert the pin 113 of through hole 109 inserts.Because above-mentioned fastener 117, can eliminate separator 121 and 122 possible position deviations, thereby and can influence time prevention because the short circuit that may form between the electrode nipple that above-mentioned deviation causes what assembled battery was vibrated with respect to negative electrode connector 101m.
Here, separator 110 its fronts are provided with pin 113 and its back is provided with recess 114, and pin 113 and recess 114 are arranged on (with reference to figure 18C) on same the straight line along stacked direction.When the electrode nipple 100t that is formed with through hole 109 on it by as during separator 110 clampings of above-mentioned structure, fastener 117 is as construct above-mentionedly, can eliminate the possible position deviation of separator 110, thereby and can influence time prevention because the short circuit that may form between the electrode nipple 100t that above-mentioned deviation causes what assembled battery was vibrated with respect to electrode nipple 100t.In addition, when stacked a plurality of batteries 100 when forming assembled battery 50, insert in the recess 114 of the separator 110 on the upper position side by front end the pin 113 of the separator on the lower position side 110, can be simultaneously fixedly separator 110 with respect to the position of electrode nipple 100t and the mutual alignment of each battery 100.By making pin 113 and recess 114 show aforesaid positioning action, can improve the operability of assembled battery 50 between erecting stage.
Because bus 141 and 151, terminal block 161 and electrode nipple 100t have separately at 2 through holes of locating to form 143,153,162 and 109,, can prevent that their generations from rotating freely so insert through hole by selling 113.Preferably, it is round-shaped that in the every pair of through hole 143,153,162 and 109 one forms, and remaining one forms elliptical shape.It is easily to realize selling 113 insertion that through hole uses the reason of these two kinds of shapes.
With reference to Figure 19, the bus 151 of negative electrode connector 101m and negative output terminal 150 is by stacked, and the part of the part of negative electrode connector 101m and bus 151 by described to separator 121 and 122 near the clampings openning portion 112, separator 121 and 122 is provided with the described openning portion 112 of extending along stacked direction.By coupling together near the negative electrode connector 101m and the bus 151 of openning portion 112, lead-out terminal 150 is electrically connected to first battery 101.When carrying out being connected of negative electrode connector 101m and bus 151 by welding, negative electrode connector 101m and bus 151 can remain under the stacked state, and in addition,, soldering tip is positioned in the openning portion 112 by separator 121 and 122 all is used as anchor clamps.As a result, can weld, and can improve the operability of welding by openning portion 112.The negative electrode connector 101m by the pin 113 of second separator 122 being inserted bus 151, first battery 101 and the through hole 153,109 of terminal block 161 and 162 and it is pushed in the recess 114 of first separator 121 have been realized bus 151, the negative electrode connector 101m of first battery 101 and the location of terminal block 161.Except the part of facing openning portion 112 and the part that constitutes voltage detection department 160, the neighboring nationality of negative electrode connector 101m and bus 151 is by separator 121 and 122 insulation.
With reference to Figure 20, paired separator 122 and 123 clamping positive electrode joint 102p, the part of positive electrode joint 102p is near the outside of separator 122 and 123.Pass the through hole 109 of second battery 102 and will sell 113 by the pin 113 that makes the 3rd separator 123 and push in the recess 114 of second separator 122, the positive electrode joint 102p of second battery 102 is located.Incidentally, be connected with negative electrode connector 103m near the separator 123 and 124 outsides near the positive electrode joint 102p in the separator 122 and 123 outsides, second battery 102 and the 3rd battery 103 are electrically connected (with reference to Figure 15) as a result.
With reference to Figure 21, a plurality of electrode nipple 101p and 102m are by stacked, and utilize paired separator 131 and 132 clampings, separator 131 and 132 is provided with the openning portion 112 of running through along stacked direction, and electrode nipple 101p and 102m are partly near openning portion 112.So, by utilizing ultrasonic bonding electrode nipple 101p and 102m in the face of openning portion 112 are connected to each other, make that a plurality of batteries 101 and 102 are electrically connected.When being connected to each other electrode nipple 101p and 102m by welding, electrode nipple 101p and 102m can remain under the stacked mutually state, and in addition,, the soldering tip of welding equipment is positioned in the openning portion 112 by separator 131 and 132 all is used as anchor clamps.As a result, can carry out welding by openning portion 112, and can improve the operability of welding similarly in this case.Pass the through hole 109 and 162 and will sell 113 and push in the recess 114 of the 11 separator 131 of the negative electrode connector 102m of second battery 102 and terminal block 161 by the pin 113 that makes the 12 separator 132, the negative electrode connector 102m and the terminal block 161 of second battery 102 are located.Except the part of facing openning portion 112 and the part that constitutes voltage detection department 160, the neighboring nationality of electrode nipple 101p and 102m is by separator 131 and 132 insulation.
In the battery unit main body 80 of present embodiment, by mutual electrode electrically connected different electrode nipple 100p and 100m, stacked a plurality of batteries 100 are linked in sequence, and positive output terminal 140 and negative output terminal 150 are electrically connected on the 8th and first battery 108 and 101 that is positioned at opposite end along stacked direction respectively, as shown in Figure 15.By making battery unit main body 80 in conjunction with each combination shown in Figure 19-Figure 21.The operability aspect that respectively is combined in welding shown in Figure 19-Figure 21 improves.As a result, can improve the operability of the welding during making battery unit main body 80.
With reference to figure 18A, Figure 18 B and Figure 22 A, separator 110 is provided with the recess 118 of the part of the periphery that is used to expose the electrode nipple 100t that is held separately, is used as the voltage detection department 160 of the voltage that detects battery 100 by the zone of recess 118 exposed electrodes joint 100t.Because electrode nipple 100t self is as voltage detection department 160, the situation that is specifically designed to terminal voltage detecting, that separate with electrode nipple 100t with setting is compared, can promote the saving in space, the result is used for the structure of voltage detecting with simplification, and is convenient to the assembling of assembled battery 50.
With reference to Figure 22 and Figure 23, the connector 170 that is provided with the splicing ear 171 (with reference to figure 24C) that can be connected to voltage detection department 160 removably is secured to voltage detection department 160 by the patchhole 91a of insulating lid 91.Connector 170 172 is connected to voltage detecting equipment 180 by going between.Only, just can finish the operation that voltage detection department 160 is electrically connected to voltage detecting equipment 180 by connectors 170.Then, can check the working condition of each battery 100 by the voltage that monitoring detects on voltage detection department 160.
The stacked direction of a plurality of voltage detection departments 160 along battery is arranged on the identical line.Connector 170 is provided with a plurality of being arranged to and the corresponding splicing ear 171 in the position of voltage detection department 160.160 pairs half arrangements of each voltage detection department, four in the front surface side, and four in the rear surface side.Correspondence between the position by setting up a plurality of voltage detection departments 160 in advance and the position of a plurality of splicing ear 171, can finish the operation that a plurality of voltage detection departments 160 all is electrically connected to voltage detecting equipment 180 by inserting a connector 170 simply, the result will improve the operability of this electrical connection.Here, there is size dispersion in battery 100 more or less in the part that the size on its thickness direction (cell height) is allowing electric producing component to exist.In the present embodiment, electrode nipple 100t is uniquely by separator 110 clampings as rigid body, and a plurality of voltage detection department 160 is by forming by recess 118 exposed electrodes joint 100t.Thereby the interval between a plurality of voltage detection departments 160 is doomed to be determined by the height dimension of stacked separator 110.That is, the interval of a plurality of voltage detection departments 160 can remain unchanged, and can not be subjected to the influence of the size dispersion of each cell height, and the position of a plurality of voltage detection department 160 can not cause any dispersion of correlation aspect.A plurality of splicing ears 171 of connector 170 can not cause that the position concerns any dispersion of aspect.Thereby, need not be for making a plurality of voltage detection departments 160 and a plurality of splicing ears 171 in the consistent complicated operations of carrying out aspect the relative position relation, as regulate the height and position of each voltage detection department 160.As a result, voltage detection department 160 is structurally simplified, a plurality of voltage detection departments 160 can easily all be connected with a plurality of splicing ears 171, and improve the operability of the insertion of connector 170.
When electrode nipple 100t had bigger thickness of slab, the electrode nipple 100t that constitutes voltage detection department 160 can not deform in the insertion of connector 170 and withdrawal process.Yet when electrode nipple 100t had smaller thickness of slab, the electrode nipple 100t that constitutes voltage detection department 160 may deform in the insertion of connector 170 and withdrawal process.Thereby in order to prevent this distortion of electrode nipple 100t, voltage detection department 160 is equipped with is stacked and placed on the terminal block 161 that electrode nipple 100t connects.Terminal block 161 is formed by the metallic plate that has than the bigger thickness of slab of electrode nipple 100t.Separator 110 its back are provided with the recess (not shown) that is used to admit terminal block 161.By setting terminal block 161, compare with the situation of only using electrode nipple 100t, can increase the intensity of voltage detection department 160 and prevent that voltage detection department 160 is owing to the insertion of connector 170 with extract and be out of shape.In addition, because terminal block 161 is directly connected on the electrode nipple 100t,, can save the space so divide situation about being arranged to compare with electrode nipple 100t with terminal block 161.
Also be formed with through hole 162 on the terminal block 161, through hole 162 allows the pin 113 of separator 110 to insert.By making the pin 113 that inserts in the through hole 162 bear the load that is applied on the terminal block 161, can in the insertion and withdrawal process of connector 170, reduce to be applied to the load on electrode nipple 100t and the electric producing component.
Incidentally, have bigger thickness of slab and can and not extract owing to the insertion of connector 170 when being out of shape at electrode nipple 100t, electrode nipple 100t needn't be provided with terminal block 161.
With reference to figure 21A, be provided with the recess 100b that is used for holding terminal block 161 at the stacked positive electrode joint 101p that is provided with the negative electrode connector 102m of terminal block 161 and is held.Owing to do not allow positive electrode joint 101p to be stacked on the terminal block 161, therefore between negative electrode connector 102m and positive electrode joint 101p, any gap can not occur.As a result, electrode nipple 102m and 101p can be combined closely ground clamping and being electrically connected ideally.
By ultrasonic bonding each electrode nipple 100t is connected to each other.Specifically, make electrode nipple 102m and 101p be connected to each other (with reference to Figure 21) by ultrasonic bonding near the openning portion 112 of separator 131 and 132.Equally, make bus 151 near the negative electrode connector 101m of separator 121 and 122 openning portion 112 and lead-out terminal 150 be connected (with reference to Figure 19) by ultrasonic bonding.By ultrasonic bonding electrode nipple 102p and 103m near the separator 121-124 outside are connected to each other in the separator 121-124 outside. Make electrode nipple 106p and 106m be connected to each other (with reference to Figure 20 and Figure 22 A) by ultrasonic bonding in the separator 127-129 outside near the separator 127-129 outside.
The utility model is not got rid of by ultrasonic bonding is connected to each other electrode nipple 100t and terminal block 161.Yet, when being connected to each other each electrode nipple 100t subsequently by ultrasonic bonding connection electrode joint 100t and terminal block 161 and by ultrasonic bonding, the connecting portion of electrode nipple 100t and terminal block 161 is subjected to following the vibration in welding, and the generation of the connecting portion of electrode nipple 100t and terminal block 161 separates, and may cause bond strength to descend.Thereby, when being connected to each other each electrode nipple 100t by ultrasonic bonding, preferably, compress and use any method connection electrode joint 100t and terminal block 161 at least in the rivet 165 by punching press.Even be connected to each other each electrode nipple 100t by ultrasonic bonding, also can keep the bonding strength between electrode nipple 100t and the terminal block 161 and obtain expecting the ease for maintenance of quality in tight position near the connecting portion of electrode nipple 100t and terminal block 161.In the insertion and withdrawal process of connector 170, terminal block 161 is subjected to owing to occur in the thrust that the splicing ear 171 of connector 170 and the friction between the terminal block 161 and engaging cause.Resist this thrust by the shearing strength that nationality is compressed or rivet 165 produces by punching press, can prevent the generation that separates at the connecting portion place of electrode nipple 100t and terminal block 161.
Figure 24 A illustrates the terminal block 161 stacked major parts that are connected in the battery 100 of negative electrode connector 100m.With reference to figure 24A-Figure 24 C, in the present embodiment, compress connection negative electrode connector 100m and terminal block 161 by punching press.Punching press compresses and causes forming recess (with reference to figure 24B and Figure 24 C) at the front of terminal block 161 formation lug boss 163 with at terminal block 161 and negative electrode connector 100m back.Connector 170 has elastic splicing ear 171, and is inserted into terminal block 161 and negative electrode connector 100m.The insertion position of connector 170 is indicated by the two point chain-dotted line among Figure 24 A and Figure 24 C.When carrying out punching press and compress, negative electrode connector 100m and terminal block 161 form the convex-concaves combination, vertically intersect along the surface of convex-concave direction and the direction of the thrust that produces in the insertion of connector 170 or withdrawal process.As a result, can provide the impedance of thrust and prevent that negative electrode connector 100m from separating with the connecting portion of terminal block 161.
With reference to figure 25A, separator 110 is provided with permission and compresses by punching press and be formed on the recess 119 that the lip-deep lug bosses 163 of terminal block 161 insert wherein.When clamping negative electrode connector 100m, the recess 119 of separator 110 and terminal block 161 lip-deep lug bosses 163 are worked in coordination.When vibration was invaded terminal block 161 via connector 170, separator 110 can suppress vibration and prevent that vibration from entering negative electrode connector 100m.As a result, electrode nipple 100t can obtain the durability that improves, and assembled battery 50 can show the reliability of raising, and concentrated on the part of interosculating of electrode nipple by stress.In addition, because the thrust that is applied on the terminal block 161 is captured by separator 110,, like this, can improve the durability of negative electrode connector 100m so the thrust that is applied on the negative electrode connector 100m alleviates.Reference numeral 113 expressions that occur in Figure 25 A are arranged on the pin on separator 110 fronts.As has been described, the pin 113 of the separator 110 on the lower position side is inserted on negative electrode connector 100m and the terminal block 161 through hole 109 and 162 that forms, and is coupled in the recess 114 of separator 110 of upper position side.
Figure 25 B represents a kind of like this state, and wherein negative electrode connector 100m is connected by rivet 165 with terminal block 161.The head 165a of rivet 165 is from the relative both sides of terminal block 161, and promptly convex shape is given prominence to and formed in the front and back.When passing through this combination of rivet 165 realizations, enter negative electrode connector 100m in order to prevent vibration and thrust, separator 110 preferably is provided with permission riveted joint head 165a insertion wherein the recess 119 outstanding from the front and back of terminal block 161.
Refer again to Figure 15 and Figure 16, will further specify battery 100 and separator 110 stacked state, the shape of electrode nipple 100t and the status of electrically connecting of battery 100 in battery unit main body 80 below.In Figure 16, dot separator 110.
At first with reference to Figure 16, with the shape of explanation electrode nipple 100t.Electrode nipple 100t has different shapes.Be conceived to the joint being convenient to the joint of the electrode nipple 100t in sub-component 81,82 and 83 and being convenient to the electrode nipple 100t between sub-component 81,82 and 83, determine the shape of electrode nipple 100t.The battery front side of second battery 102 and the 5th battery 105 and rear side direction simply are provided with and self remains unchanged and use same battery reversedly.Equally, the 3rd battery 103 and the 6th battery 106 use same battery, and the 4th battery 104 and the same battery of the 7th battery 107 uses.Thereby this battery unit main body 80 comprises eight battery 101-108, yet has used the variform five kinds of batteries of electrode nipple 100t.By reducing the quantity of battery variety, can reduce to produce the required expense of battery 100.
The shape of electrode nipple 100t is broadly divided two types, i.e. blank area elongation and type of all being covered by separator 110 near the type and the joint in separator 110 outsides on than length direction.One type of front comprises negative electrode connector 104m, the positive electrode joint 105p of the 5th battery 105, the negative electrodes joint 106p of the 6th battery 106 and the negative electrode connector 107m of 106m and the 7th battery 107 of the negative electrodes joint 103p of positive electrode joint 102p, the 3rd battery 103 of second battery 102 and 103m, the 4th battery 104.Comprise remaining electrode nipple in back one type, that is, the negative electrodes joint 108p and the 108m of the positive electrode joint 107p of the negative electrode connector 105m of the positive electrode joint 104p of the negative electrode connector 102m of the negative electrodes joint 101p of first battery 101 and 101m, second battery 102, the 4th battery 104, the 5th battery 105, the 7th battery 107 and the 8th battery 108.
The terminal block 161 stacked negative electrode connector 100m that are connected in each battery 100.Stacked positive electrode 101p, 104p on the negative electrode connector 100m that is provided with terminal block 161 and the 107p of being clipped in has and is used to receive the recess 100b (in addition with reference to Figure 17) of putting terminal block 161.
With reference now to Figure 16,, the status of electrically connecting of each battery 100 will be described below.In Figure 16, the electrode nipple 100t that is electrically connected is connected by the connecting line of representing with double dot dash line.
" square that fills up " of contiguous connecting line mark is illustrated in first-Di, three sub-components 81,82 and 83, is connected to each other by ultrasonic bonding near the electrode nipple 100t of the openning portion 112 of separator 110." circle of filling up " of contiguous connecting line mark is illustrated in the first and the 3rd sub-component 81 and 83, is welded to connect by ultraviolet ray in separator 110 outsides near the electrode nipple 100t in separator 110 outsides." the blank circle " of contiguous connecting line mark is illustrated in after sub-component 81,82 and 83 assembled, when being connected to each other sub-component 81 and 82 and 82 and 83, be connected to each other by the ultraviolet ray welding in separator 110 outsides near the electrode nipple 100t in separator 110 outsides.
When assembling first sub-component 81, the positive electrode joint 101p of first battery 101 is connected in openning portion 112 with the negative electrode connector 102m of second battery 102, and the negative electrode connector 103m of the positive electrode joint 102p of second battery 102 and the 3rd battery 103 is connected in separator 110 outsides.The negative electrode connector 101m of first battery 101 also is connected (with reference to Figure 19) with the bus 151 of negative output terminal 150 in openning portion 112.
When assembling second sub-component 82, the positive electrode joint 104p of the 4th battery 104 is connected in openning portion 112 with the negative electrode connector 105m of the 5th battery 105.
When assembling the 3rd sub-component 83, the positive electrode joint 107p of the 7th battery 107 is connected in openning portion 112 with the negative electrode connector 108m of the 8th battery 108, and the negative electrode connector 107m of the positive electrode joint 106p of the 6th battery 106 and the 7th battery 107 is connected in separator 110 outsides.The positive electrode joint 108p of the 8th battery 108 and the bus 141 of positive output terminal 140 are connected in openning portion 112.
After sub-component 81,82 and 83 had been assembled, when connecting first sub-component 81 and second sub-component 82, the positive electrode joint 103p of the 3rd battery 103 was connected in separator 110 outsides with the negative electrode connector 104m of the 4th battery 104.When connecting second sub-component 82 and the 3rd sub-component 83, the positive electrode joint 105p of the 5th battery 105 is connected in separator 110 outsides with the negative electrode connector 106m of the 6th battery 106.Thereby, as different electrode nipple 100p of electric polarity and the electrical connection result of 100m, eight stacked battery 101-108 connect in the mode of being connected in series, and positive output terminal 140 and negative output terminal 150 are electrically connected on the 8th and first battery 108 and 101 that is positioned at the opposite end along stacked direction.
In the front surface side, four voltage detection departments 160 are arranged on same the straight line along the stacked direction of battery, and terminal block 161 is positioned on respective negative electrode nipple 101m, 103m, 105m and the 107m of the first, the 3rd, the 5th and the 7th battery 101,103,105 and 107.In the rear surface side, four voltage detection departments 160 are arranged on same the straight line along the stacked direction of battery, and terminal block 161 is positioned on respective negative electrode nipple 102m, 104m, 106m and the 108m of the second, the 4th, the 6th and the 8th battery 102,104,106 and 108.For example, by the voltage between several first voltage detection departments 160 on several first voltage detection departments 160 and the rear surface side on definite front surface side, can obtain the voltage of first battery 101.By the voltage between several second voltage detection departments 160 on several first voltage detection departments 160 and the front surface side on the side of definite rear surface, can obtain the voltage of second battery 102.Similarly, can obtain the voltage of the 3rd-Di eight battery 103-108.
Now, will with reference to Figure 15 battery 100 and the stacked state of separator 110 in battery unit main body 80 be described below.In Figure 15, represent to sell 113 from the element that separator 110 protrudes previously, and represent snap fit pawl 116 from the element that it protrudes later.Below front surface side and rear surface side will be described apart from each other.
At first, in the front surface side, first and second separators 121 and 122 clampings are in the negative electrode connector 101m under the stacked state and the bus 151 of negative output terminal 150.The positive electrode joint 102p of the second and the 3rd separator 122 and 123 clampings, second battery 102.The negative electrode connector 103m of third and fourth separator 123 and 124 clampings the 3rd battery 103.The the 5th and the 6th separator 125 and 126 clampings are in the positive electrode joint 104p of the 4th battery 104 under the stacked state and the negative electrode connector 105m of the 5th battery 105.The positive electrode joint 106p of the 6th and the 7th separator 126 and 127 clampings the 6th battery 106.The negative electrode connector 107m of the 7th and the 8th separator 127 and 128 clampings the 7th battery 107.The the 8th and the 9th separator 128 and 129 clampings are in the positive electrode joint 108p of the 8th battery 108 under the stacked state and the bus 141 of positive output terminal 140.
In the rear surface side, the tenth separator 130 is stacked on the 11 separator 131.The the 11 and the 12 separator 131 and 132 clampings are in the positive electrode joint 101p of first battery 101 under the stacked state and the negative electrode connector 102m of second battery 102.The positive electrode joint 103p of the 12 and the 13 separator 132 and 133 clampings the 3rd battery 103.The negative electrode connector 104m of the 13 and the 14 separator 133 and 134 clampings the 4th battery 104.The positive electrode joint 105p of the 14 and the 15 separator 134 and 135 clampings the 5th battery 105.The negative electrode connector 106m of the 15 and the 16 separator 135 and 136 clampings the 6th battery 106.The the 17 and the 18 separator 137 and 138 clampings are in the positive electrode joint 107p of the 7th battery 107 under the stacked state and the negative electrode connector 108m of the 8th battery 108.
Rear surface side front surface side
The tenth separator 130:#9 first separator 121:#9
The 11 separator 131:#12 second separator 122:#13
The 12 separator 132:#11 the 3rd separator 123:#10
The 13 separator 133:#10 the 4th separator 124:#11
The 14 separator 134:#11 the 5th separator 125:#12
The 15 separator 135:#10 the 6th separator 126:#11
The 16 separator 136:#11 the 7th separator 127:#10
The 17 separator 137:#15 the 8th separator 128:#9
The 18 separator 138:#14 the 9th separator 129:#8
Now, will be described below the process of the assembled battery 50 in the assembling present embodiment.In Figure 27, Figure 29, Figure 31, Figure 33, Figure 35, Figure 37 and Figure 39, point out to bear the position of ultrasonic bonding with hachure.
(assembling of first sub-component 81)
In the front surface side, first and second separators 121 and 122 clampings are in the negative electrode connector 101m of first battery 101 under the stacked state and negative output terminal in 150 bus 151, and negative electrode connector 101m and negative output terminal 150 parts are near openning portion 112, as shown in Figure 26.The pin 113 of second separator 122 passes the respective through hole 153,109 and 162 of bus 151, negative electrode connector 101m and terminal block 161, and is fitted to the recess 114 of first separator 121.As shown in Figure 27, be connected by ultrasonic bonding near the negative electrode connector 101m of openning portion 112 and bus 151.As a result, negative output terminal 150 is electrically connected to first battery 101.
The tenth separator 130 is being stacked on the 11 separator 131, as shown in Figure 28 on the side of rear surface.The the 11 and the 12 separator 131 and 132 clampings are in the positive electrode joint 101p of first battery 101 under the stacked state and the negative electrode connector 102m of second battery 102, and electrode nipple 101p and 102m are partly near openning portion 112.The pin 113 of the 12 separator 132 passes the respective through hole 109 and 162 of negative electrode connector 102m and terminal block 161, and is fitted to the recess 114 of the 11 separator 131.Because terminal block 161 can not be stacked on the positive electrode joint 101p, the ground clamping so electrode nipple 101p and 102m are combined closely mutually.Apparent surface with first battery 101 and second battery 102 is glued together with the dual coating band.As shown in Figure 29, the positive electrode joint 101p near openning portion 112 is connected by ultrasonic bonding with negative electrode connector 102m.As a result, first battery 101 is connected in the mode of being connected in series with second battery 102.In addition, on the front surface side, the positive electrode joint 102p of the second and the 3rd separator 122 and 123 clampings, second battery 102, the part of positive electrode joint 102p is near the outside (with reference to Figure 28 and Figure 29) of separator 122 and 123.The pin 113 of the 3rd separator 123 passes the through hole 109 of positive electrode joint 102p, and is fitted in the recess 114 of second separator 122.
On the front surface side, the negative electrode connector 103m of third and fourth separator 123 and 124 clampings the 3rd battery 103, the part of negative electrode connector 103m is near the outside of separator 123 and 124, as shown in Figure 30.The pin 113 of the 4th separator 124 passes the respective through hole 109 and 162 of negative electrode connector 103m and terminal block 161, and is fitted in the recess 114 of the 3rd separator 123.Apparent surface with second battery 102 and the 3rd battery 103 is glued together with the dual coating band.Be connected on the separator 121-124 outside near the negative electrode connector 103m of the positive electrode joint 102p of second battery 102 in the separator 121-124 outside and the 3rd battery 103 by supersonic welding and be connected, as shown in Figure 31.As a result, second battery 102 is connected in the mode of being connected in series with the 3rd battery 103.Then, on the side of rear surface, the positive electrode joint 103p of the 12 and the 13 separator 132 and 133 clampings the 3rd battery 103, the part of positive electrode joint 103p is near the outside (with reference to Figure 30 and Figure 31) of separator 132 and 133.The pin 113 of the 13 separator 132 passes the through hole 109 of positive electrode joint 103p, and is fitted in the recess 114 of the 12 separator 132.
By these steps, finish the assembling of first sub-component 81.
(assembling of second sub-component 82)
On the front surface side, the 5th and the 6th separator 125 and the positive electrode joint 104p of 126 clampings the 4th battery 104 and the negative electrode connector 105m of the 5th battery 105, electrode nipple 104p and 105m are stacked and partly near openning portion 112, as shown in Figure 32.The pin 113 of the 6th separator 126 passes the respective through hole 109 and 162 of negative electrode connector 105m and terminal block 161, and is fitted in the recess 114 of the 5th separator 125.Because positive electrode joint 104p can not be stacked on the terminal block 161, the ground clamping so electrode nipple 104p and 105m are combined closely mutually.Apparent surface with the 4th battery 104 and the 5th battery 105 is glued together with the dual coating band.As shown in Figure 33, the positive electrode joint 104p near openning portion 112 is connected by ultrasonic bonding with negative electrode connector 105m.As a result, the 4th battery 104 is connected in the mode of being connected in series with the 5th battery 105.Then, on the side of rear surface, the positive electrode joint 105p of the 14 and the 15 separator 134 and 135 clampings the 5th battery 105, positive electrode joint 105p part is near the outside (with reference to Figure 32 and Figure 33) of separator 134 and 135.The pin 113 of the 14 separator 134 passes the respective through hole 109 and 162 of negative electrode connector 104m and terminal block 161.
These steps are finished the assembling of second sub-component 82.
(assembling of the 3rd sub-component 83)
On the front surface side, the positive electrode joint 108p of the 8th battery 108 that the 8th and the 9th separator 128 and 129 clampings are stacked and the bus 141 of positive output terminal 140, the part of positive electrode joint 108p and the part of positive output terminal 140 are near openning portion 112, as shown in Figure 34.The pin 113 of the 9th separator 129 passes the respective through hole 143 and 109 of bus 141 and positive electrode joint 108p, and is fitted to the recess 114 of the 8th separator 128.As shown in Figure 35, by positive electrode joint 108p and the bus 141 of ultrasonic bonding near openning portion 112.As a result, positive output terminal 140 is electrically connected to the 8th battery 108.
On the side of rear surface, the positive electrode joint 107p of the 7th battery 107 that the 17 and the 18 separator 137 and 138 clampings are stacked and the negative electrode connector 108m of the 8th battery 108, electrode nipple 107p and 108m part are near openning portion 112, as shown in Figure 36.The pin 113 of the 18 separator 138 passes the respective through hole 109 and 162 of negative electrode connector 108m and terminal block 161, and is fitted in the recess 114 of the 17 separator 137.Because positive electrode joint 107p can not be stacked on the terminal block 161, the ground clamping so electrode nipple 107p and 108m are combined closely.Apparent surface with the 7th battery 107 and the 8th battery 108 is glued together with the dual coating band.As shown in Figure 37, by positive electrode joint 107p and the negative electrode connector 108m of ultrasonic bonding connection near openning portion 112.As a result, the 7th battery 107 is connected in the mode of being connected in series with the 8th battery 108.Then, on the front surface side, the negative electrode connector 107m of the 7th and the 8th separator 127 and 128 clampings the 7th battery 107, negative electrode connector 107m part is near the outside (with reference to Figure 36 and Figure 37) of separator 127 and 128.The pin 113 of the 8th separator 128 passes the through hole corresponding 109 and 162 of negative electrode connector 107m and terminal block 161, and is fitted in the recess 114 of the 7th separator 127.
On the side of rear surface, the 16 separator 136 is stacked on the 17 separator 137, as shown in Figure 38.The pin 113 of the 17 separator 137 is fitted in the recess 114 of the 16 separator 136.The negative electrode connector 106m of the 6th battery 106 is installed on the 16 separator 136, and negative electrode connector 106m is partly near the outside of separator 136.The pin 113 of the 16 separator 136 passes the respective through hole 109 and 162 of negative electrode connector 106m and terminal block 161.Apparent surface with the 6th battery 106 and the 7th battery 107 is glued together with the dual coating band.On the front surface side, the positive electrode joint 106p of the 6th battery 106 is installed on the 7th separator 127, and positive electrode joint 106p is partly near the outside of separator 127, as shown in Figure 39.The pin 113 of the 7th separator 127 passes the through hole 109 of positive electrode joint 106p.Then, near the positive electrode joint 106p in the separator 127 and 128 outsides with negative electrode connector 107m is connected on separator 127 by supersonic welding and 128 outsides couple together.As a result, the 6th battery 106 is connected in the mode of being connected in series with the 7th battery 107.
These steps are finished the assembling of the 3rd sub-component 83.
( sub-component 81 and 82 and 82 and 83 interconnect)
When first sub-component 81 was connected with second sub-component 82, with reference to figure 10-Figure 12 and Figure 15, on the front surface side, the pin 113 of the 5th separator 125 was fitted in the recess 114 of the 4th separator 124; And on the side of rear surface, the pin 113 of the 14 separator 134 passes the respective through hole 109 and 162 of the negative electrode connector 104m and the terminal block 161 of the 4th battery 104, is fitted to then in the recess 114 of the 13 separator 133.As a result, first sub-component 81 is located with second sub-component 82 and is connected.Then, on the side of rear surface, the positive electrode joint 103p of the 3rd battery 103 is connected by the outside that supersonic welding is connected on separator 130-135 with the negative electrode connector 104m of the 4th battery 104.As a result, first sub-component 81 is connected in the mode of being connected in series with second sub-component 82.
When second sub-component 82 was connected with the 3rd sub-component 83, on the front surface side, the pin 113 of the 7th separator 127 passed the through hole 109 of the positive electrode joint 106p of the 6th battery 106, in the recess 114 of the 6th separator 126 that is fitted to then; And on the side of rear surface, the pin 113 of the 16 separator 136 passes the respective through hole 109 and 162 of the negative electrode connector 106m and the terminal block 161 of the 6th battery 106, and is fitted to subsequently in the recess 114 of the 15 separator 135.As a result, second sub-component 82 is located with the 3rd sub-component 83 and is connected.Then, on the side of rear surface, the positive electrode joint 105p of the 5th battery 105 is connected on the separator 130-138 outside with the negative electrode connector 106m of the 6th battery 106 by supersonic welding and is connected.As a result, first-Di, three sub-components 81,82 are connected in the mode of being connected in series with 83.
These steps are finished being connected to each other of sub-component 81 and 82 and 82 and 83, and the result has obtained the battery unit main body 80 shown in Fig. 9.
The connecting portion of the portion that interconnects of electrode nipple 100t and electrode nipple 100t and bus 141 and 151 is divided into a plurality of positions on the shorter direction of battery 100 (separator 110 than length direction).When specific connecting portion connects by ultrasonic bonding, the electrode nipple 100t that is grouping can be positioned at this specific connecting portion by the soldering tip that makes welding equipment be able to mutual clamping, and needn't carry out the operation that spreads apart other batteries along stacked direction by recall temporarily, the result is convenient to welding operation.In addition, increase the selection degree of freedom of soldering tip shape, and be convenient to the automation of welding operation.And the quality of expection is kept, and can not cause the electrode nipple 100t that has connected to suffer the possibility of inappropriate stress.
(assembling of battery unit 60 etc.)
Subsequently, insulating lid 91 and 92 is installed on the front surface and rear surface of battery unit main body 80 (with reference to figure 6 and Figure 23 A) respectively to obtain the battery unit 60 shown in Fig. 3.
By making through bolt pass the bolt hole 73 and the sleeve pipe 93 of housing 70, separator 110 is fixed with respect to the position of housing 70.As a result, a plurality of batteries 100 are fixed with respect to the position of housing 70.
(improved embodiment)
Electrode nipple 100t has been described by the interconnected embodiment of ultrasonic bonding.Yet being connected to each other of electrode nipple 100t is not limited to ultrasonic bonding.
(second embodiment)
Second embodiment is that with the different of first embodiment structure of separator 230 has changed with the mode that is connected to each other electrode nipple 222 and 224.
Be similar to first embodiment, the electrode nipple 222 that the assembled battery 210 of second embodiment has a plurality of stacked batteries 220 and each battery 220 is electrically connected mutually with 224, and battery 220 forms by encapsulating electric producing component with packaging part and simultaneously plate electrode joint 222 and 224 being drawn out to the outside from packaging part.This assembled battery 210 also is equipped with tabular electric insulation separator 230, is suitable for stacked direction (vertical direction among Figure 40) along battery from the opposed surface side holding electrode joint of electrode nipple 222 and 224.A plurality of batteries 220 are housed in the housing 240 in the mode of compacting electricity producing component.
By dual coating band or adhesive are applied to flat body 226 batteries 220 fastened to each other.A pair of separator 230 is stacked to being clamped together as one with positive electrode joint 222 and negative electrode connector 224.Thereby a plurality of battery 220 connects in the mode of being connected in series.Form the superiors battery 220 negative electrode connector 224 be connected in negative output terminal 252, and the positive electrode joint 222 that forms undermost battery 220 is connected in positive output terminal 250.
The separator 230 of second embodiment is equipped with insulating barrier 234 with electrical insulation property and the heat dissipating layer 232 that has more high-heating radiation character than insulating barrier 234.The separator 230 that illustrates as an example forms with three-decker, comprises the insulating barrier 234 with insulating property (properties), and insulating barrier 234 is had heat dissipating layer 232 clampings of thermorodiative property, as shown in Figure 40.When electrode nipple 222 and 224 during, make heat dissipating layer 232 can contact stacked electrode nipple 222 and 224 by a pair of separator 230 clampings that all have this three-decker.
Insulating barrier 234 can be formed by suitable material, as long as it can give separator 230 electrical insulation property.Heat dissipating layer 232 can be formed by suitable material, as long as it has the thermorodiative property higher than insulating barrier 234.By using the material that has a higher heat conduction ratio than the material that forms insulating barrier 234 to form heat dissipating layer 232, heat dissipating layer 232 can have the thermorodiative property higher than insulating barrier 234.Because insulating barrier 234 can make separator 230 keep the electrical insulation property of himself, need not be confined to have the material of electrical insulation property so be used for forming the material of heat dissipating layer 232, but can from material, select with conduction property.The material of selecting to be used for to form heat dissipating layer 232 from the viewpoint that improves thermorodiative property is just enough.Specifically, the material that has a good thermorodiative property such as aluminium etc. is used for heat dissipating layer 232.For insulating barrier 234, use such as insulating material such as pottery or resins.Select for use when forming the material of heat dissipating layer 232 when conductive materials, much less,, must lay insulating barrier 234 along the in-plane of electrode nipple 222 and 224 in order to give separator 230 electrical insulation property.
Preferably, in the scope that guarantees electrical insulation property, form insulating barrier 234 with possible minimum thickness.This is because can improve the thermorodiative property that is caused by heat dissipating layer 232 in the limited thickness of separator 230.
As shown in Figure 42, separator 230 is approximate wide with battery 220, and is arranged on the whole width of electrode nipple 222 and 224.
As shown in Figure 40, a pair of separator 230 clampings are as a pair of two stacked positive electrode joints 222 and negative electrode connector 224, and are set together along stacked direction and positive electrode joint 222 and negative electrode connector 224.In order to handle as a pair of two positive electrode joints 222 and negative electrode connector 224, the thickness of each separator 230 is approximately equal to the gross thickness of two batteries 220 and is arranged on two-layer interval.Each separator 230 is arranged on each electrode nipple side (cross side among the figure) of battery 220 alternately with a step.Thereby, be positioned at each battery 220 battery 220 of highest and lowest layer at place, opposite end except forming along stacked direction, their negative electrode connector 224 contacts with the positive electrode joint 222 of other battery 220 that is arranged at a last step, and their positive electrode joint 222 contacts with the negative electrode connector 224 of other battery that is arranged at next step.As a result, a plurality of battery 220 connects in the mode of being connected in series.As mentioned above, negative output terminal 252 is connected in the negative electrode connector 224 of the battery 220 that forms the superiors, and positive output terminal 250 is connected in the positive electrode joint 222 that forms undermost battery 220.Incidentally, a plurality of batteries 220 can so connect in the mode of being connected in series, and make positive output terminal 250 can be connected in the battery 220 that forms the superiors, and negative output terminal 252 can be connected in the undermost battery 220 of formation.
(assembling process)
Now, will the assembling process of the assembled battery 210 in the present embodiment be described below.
At first, as shown in Figure 43, positive output terminal 250 is secured to the positive electrode joint 222 that forms undermost battery 220 by ultrasonic bonding.
Under state subsequently, form undermost battery 220 by supporting mass 236 supportings.Here, supporting mass 236 is formed by insulating material, and is coupled to positive electrode joint 222 and negative electrode connector 224 with high friction plate, dual coating band or adhesive.
Subsequently, separator 230 ' is installed in the positive electrode joint 222 that forms undermost battery 220.In order to regulate the gross thickness of whole assembled battery 210, separator 230 ' used herein has the thickness of a battery.Because this thickness is so it forms double-layer structure.But, separator 230 ' is equipped with insulating barrier 234 and heat dissipating layer 232, is similar to aforementioned situation with the thickness that equals two battery gross thickness.
Then, stacked next battery 220.Adjacent battery 220 has adhesive or the dual coating band and fastened to each other that places therebetween.Separator 230 is installed in the positive electrode joint 222 of stacked battery 220.In this installing process, when making positive electrode joint 222 distortion that stretch straight, separator 230 is pressed against the negative electrode connector 224 that forms undermost battery 220 with it.Positive electrode joint 222 is formed by aluminium, and it is than negative electrode connector 224 easier bendings.Form the negative electrode connector 224 of undermost battery 220 and the proportional length difference of distortion that positive electrode joint 222 produces and positive electrode joint 222 produces that contacts and be arranged in the battery 220 of one deck above it with this joint 224 when stacked.
Subsequently, stacked battery 220 similarly.At this moment, separator 230 is provided with left side in the drawings and 224 two joints of positive electrode joint 222 and negative electrode connector is contacted along stacked direction.
When repeating above-mentioned stacked process and negative output terminal 252 is connected in the negative electrode connector 224 of the battery 220 that forms the superiors, form stacked main body as shown in Figure 44.
Here, stacked positive electrode joint 222 is different on length with negative electrode connector 224, and the not alignment of the end face of positive electrode joint 222 and negative electrode connector 224.The end face of this incomplete alignment of positive electrode joint 222 and negative electrode connector 224 hinders their combination.Thereby, by using cutter the end face of stacked positive electrode joint 222 and negative electrode connector 224 is evened up.
As shown in Figure 45, by using TIG welding equipment 260 to utilize TIG to be welded to connect the end face of the alignment of electrode nipple 222 and 224.TIG welding equipment 260 is equipped with the not tungsten electrode of affected by heat, and in order to by realize to its surrounding environment feed inert gas flow the welding.In the process of welding, the anchor clamps 261 that serve as radiator simultaneously from top and below holding separator 230.Anchor clamps 261 keep stability in the process of welding, and promote the diffusion of the heat that produces in welding process.
Utilize the TIG welding, guaranteed the electrical connection between positive electrode joint 222 and the negative electrode connector 224.After whole TIG welding finishes, by stacked main body being placed on the assembled battery of finishing in the housing 240 as shown in Figure 40 210.
According to similar second embodiment of first embodiment, use separator 230 holding electrode joints 222 and 224 as described above, assembled battery 210 is provided, it has the shock strength of raising, demonstrate the influence that is not subjected to vibrate input, and allow the compactedness on the size.This assembled battery 210 has by separator 230 positive electrode joint 222 and 224 two joints of negative electrode connector as a pair of clamping.Because it is right that positive electrode joint 222 and negative electrode connector 224 are combined into, so they can connect with they constant postures.Thereby this operation is easy to carry out and can produces stable connection.
As the mode of connection electrode joint, comprise stacked electrode nipple being clamped between horn and the anvil block and the method that they couple together is available by ultrasonic bonding.When connecting adjacent electrode nipple by ultrasonic bonding, must be on electrode nipple and below acquisition be used for receiving the space of putting horn and anvil block.Thereby when the electrode nipple for the treatment of stacked battery was of similar shape, coming by the zone branch that will connect obtained described space, and therefore join domain is subjected to the power that is used to separate.When the join domain that separates connects when being closed into previous state, battery and electrode nipple are subjected to unwanted power.As a result, join domain and battery may break, and may not obtain stable quality.On the contrary, in a second embodiment,, be connected at its place, end with 224 near separator 230 outsides by a plurality of electrode nipples 222 of paired separator 230 clampings though the electrode nipple 222 and 224 of stacked battery 220 has same shape.Because the end of positive electrode joint 222 and negative electrode connector 224 is connected by the TIG welding, so exempted the necessity that obtains to be used to admit the space of horn.As a result, because the zone that no longer needs to have connected separates or closure, thus can avoid join domain and battery 220 to break, and can obtain the connection of stay in grade.
Positive electrode joint 222 is connected with its end with negative electrode connector 224.Thereby the length of positive electrode joint 222 and negative electrode connector 224 only is required to be: these joints can be outstanding a little from separator 230.The result is, positive electrode joint 222 and negative electrode connector 224 with littler length as compared with the past are just enough, and the size of assembled battery 210 is reduced.
Because even separator 230 supporting positive electrode joint 222 and negative electrode connectors 224 are so when the quantity for the treatment of stacked battery 220 is very big, also can finally also can collectively interconnect each battery 220 after whole stacked process is finished.Thereby stacked process can be carried out under the situation of any restriction not treating the stacked number of plies in addition.
In addition, each self-contained separator 230 with heat dissipating layer 232 of thermorodiative property be separately positioned on the top of stacked positive electrode joint 222 and negative electrode connector 224 and below.Thereby when positive electrode joint 222 and negative electrode connector 224 are connected when producing heat by welding at them, separator 230 is emitted heat.As a result, heat is delivered to battery 220 hardly., thereby, can prevent in connection procedure because the damage of the battery 220 that heat causes.
Incidentally, previous embodiment is welded to connect battery 220 by TIG.Yet the connection of battery 220 is not limited to the TIG welding.
As shown in Figure 46, stacked electrode nipple 222 and 224 can utilize laser welding to be connected to each other by using laser welding apparatus 262.
The laser focusing that laser welding apparatus 262 will be sent by oscillator by means of lens is on the end of stacked positive electrode joint 222 and negative electrode connector 224.Therefore, the end of positive electrode joint 222 and negative electrode connector 224 is fused and is connected.
In addition, as shown in Figure 47, stacked electrode nipple 222 and 224 can be connected to each other by the friction stir pressure welding.In this case, keep the friction stir tool 264 of rotation to be inserted in the end face of positive electrode joint 222 and negative electrode connector 224, and make it to stir and the material itself that is connected positive electrode joint 222 and negative electrode connector 224.
Connecting portion can obtain the mechanical strength of raising, because different with the method that makes material melts, this method connects stacked joint under the situation that does not make the joint material fusing.In addition, with regard to the material that connects only with minimum degree distortion or crooked with regard to, this method is favourable.
(improvement example)
Illustrated the embodiment that forms separator 230 with heat dissipating layer 232-insulating barrier 234-heat dissipating layer 232 three-deckers.Yet separator 230 is not limited to this structure.For example, can form separator with the double-layer structure that comprises a heat dissipating layer 232 and an insulating barrier 234.When electrode nipple 222 and 224 during by a pair of two stratotype separator clampings, the heat dissipating layer 232 on one of these separators needs any in the contact stacked electrode nipples 222 and 224.Even utilize a kind of like this structure,, can prevent that also battery 220 is owing to heat damages interconnect electrode nipple 222 and at 224 o'clock by welding.
The separator 110 that illustrates among first embodiment can adopt the separator that is equipped with insulating barrier 234 and heat dissipating layer 232.In addition, replacement interconnects near the electrode nipple 100p of openning portion 122 and the pattern of 100m by ultrasonic bonding, a plurality of electrode nipple 100p and 100m by a pair of separator clamping also can connect at its place, end near the separator outside as second embodiment is conceived.
(the 3rd embodiment)
Be similar to first embodiment, battery 220 stacked during the positioning function that realizes of separator can be additional to the function of the separator 230 among second embodiment.
To the 3rd embodiment be described at separator below with positioning function.
As shown in Figure 48 and Figure 49, the separator 270 among the 3rd embodiment forms with three-decker, comprises the insulating barrier 274 with insulating property (properties), and insulating barrier 274 is by heat dissipating layer 272 clampings with thermorodiative property.Here, the heat dissipating layer 272 of the formation the superiors is provided with lug boss 271 (corresponding to protuberance).Then, form undermost heat dissipating layer 272 and be provided with recess 273.Lug boss 271 and recess 273 have the approximate same diameter and the degree of depth, and are arranged on the corresponding position on the front and back of heat dissipating layer 272.
Thereby when separator 270 during by stacked so that the electrode nipple 222 of clamping battery 220 and 224, separator 270 connects mutually in the mode of convex-concave combination, as shown in Figure 50.Here, the electrode nipple 222 and 224 of battery 220 is pre-formed porose 223 and 225 respectively thereon, and hole portion 223 and 225 allows the lug boss 271 of separator 270 to insert wherein.Similar to first embodiment, electrode nipple 222 and 224 forms porose 223 and 225 thereon, and lug boss 271 and recess 273 form fastener 117.
Process by the lug boss 271 that will pass separator 270 as the electrode nipple 222 and 224 of a pair of battery 220 makes separator 270 connect mutually simultaneously obtains the stack shown in Figure 50.Similar to second embodiment, make the electrode nipple 222 and the alignment of 224 end face of the stack of formation with cutter.By being welded to connect the end face of alignment.As a result, finish stack and be arranged on assembled battery in the housing 240.
Incidentally, the separator 270a that is arranged in the orlop only is formed with lug boss thereon and does not form recess, and this lug boss connects with the recess 273 that is arranged on the separator 270 of a step.So the separator 270b that is arranged on the superiors only is formed with recess thereon and does not form lug boss, the lug boss 271 of the separator 270 of this recess and next step connects.Thereby, allow unwanted lug boss 271 and recess 273 to be retained in the superiors and the orlop.
The separator 270 of the 3rd embodiment is provided with aforesaid lug boss 271 and recess 273.The lug boss 271 of separator 270 passes the electrode nipple 222 and 224 of battery 220, is coupled to then in the recess 273.As a result, separator 270 is located mutually, and electrode nipple 222 and 224 also is positioned.That is, battery 220 is positioned equally.Make as connecting mutually of the lug boss 271 of the separator 270 of above-mentioned realization and recess 273 and in stacked process, to be convenient to the location.
Clearly, above the utility model is not limited to shown in and described specific embodiment, but can under the situation that does not deviate from the utility model technological concept, make various changes and improvements.
The Japanese patent application No.2004-310545 that on October 26th, 2004 and on December 27th, 2004 file an application and whole disclosure contents of 2004-376184 comprise specification, claims, accompanying drawing and summary, all are incorporated herein by reference at this.
Claims (20)
1. assembled battery comprises:
A plurality of flat cells, each flat cell is equipped with the packaging part of the electric producing component of encapsulation and the electrode nipple of drawing to the outside from packaging part, described a plurality of flat cell is by stacked, it is characterized in that, electrode nipple along stacked direction flat cell adjacent one another are is electrically connected mutually, and described assembled battery also comprises:
Insulation board, described insulation board along the stacked direction of described a plurality of flat cells from described electrode nipple opposed surface side holding electrode joint and have electrical insulation property.
2. assembled battery as claimed in claim 1 is characterized in that, one in the insulation board of the described paired configuration of holding electrode joint is used for another electrode nipple of clamping simultaneously.
3. assembled battery as claimed in claim 1 is characterized in that, described each insulation board interconnects.
4. assembled battery as claimed in claim 1 is characterized in that the insulation board of the described paired configuration of holding electrode joint is provided with fastener, and this fastener is suitable for fixing electrode nipple by passing described electrode nipple along stacked direction.
5. assembled battery as claimed in claim 4 is characterized in that
Described electrode nipple is provided with the through hole along stacked direction, and
Described fastener is provided with protuberance and recess, described protuberance is suitable for inserting in the through hole on one of insulation board of being arranged on described paired configuration, and the female portion is suitable for allowing to insert therein in the insulation board that is arranged on described paired configuration front end on another, that insert the protuberance in the described through hole.
6. assembled battery as claimed in claim 5 is characterized in that
Described insulation board is respectively arranged with protuberance and recess, and described protuberance is arranged on along on one of apparent surface of stacked direction, and the female portion is arranged on along among the apparent surface of stacked direction another, and
Described protuberance and the female portion are arranged on same the straight line along stacked direction.
7. assembled battery as claimed in claim 1 is characterized in that
Described insulation board is respectively arranged with the recess of the part periphery that is used to expose the electrode nipple that is held, and
Be used as the voltage detection department of the voltage that detects each described flat cell by the zone of described recess exposed electrodes joint.
8. assembled battery as claimed in claim 7 is characterized in that, also comprises connector, and this connector is provided with the splicing ear that can be connected in described voltage detection department and removably is secured to described voltage detection department.
9. assembled battery as claimed in claim 8 is characterized in that
Described a plurality of voltage detection department is arranged on same the straight line along stacked direction, and
Described connector is provided with a plurality of splicing ears that are provided with corresponding to the position of described each voltage detection department.
10. assembled battery as claimed in claim 7 is characterized in that, described voltage detection department is provided with the stacked voltage detecting terminal block that is connected in described electrode nipple.
11. assembled battery as claimed in claim 10 is characterized in that, the stacked electrode nipple that is clamped on the electrode nipple that is provided with described voltage detecting terminal block is provided with the recess that is used to admit described voltage detecting terminal block.
12. assembled battery as claimed in claim 10 is characterized in that
Described electrode nipple is connected to each other by ultrasonic bonding, and
Described electrode nipple compresses or uses rivet to be connected with described voltage detecting terminal block by punching press.
13. assembled battery as claimed in claim 10 is characterized in that
Described electrode nipple compresses or uses the rivet with head to be connected with described voltage detecting terminal block by punching press, and
Each insulation board is provided with recess, and the described head that this recess allows to compress the rivet that is formed at lip-deep lug boss of described voltage detecting terminal block or voltage detecting terminal block surface by punching press inserts wherein.
14. assembled battery as claimed in claim 1 is characterized in that
Described insulation board is provided with the openning portion of running through formation along stacked direction,
Described a plurality of electrode nipple piles up setting, near described openning portion, and by the insulation board clamping of described paired configuration, and
Described a plurality of flat cell is electrically connected by the electrode nipple that interconnects near described openning portion.
15. assembled battery as claimed in claim 1 is characterized in that
Described electrode nipple is by the insulation board clamping, and the outside of the insulation board of the close described paired configuration of the part of described electrode nipple, and
Described a plurality of flat cell is electrically connected by the electrode nipple that interconnects near the described insulation board outside.
16. assembled battery as claimed in claim 1 is characterized in that, also comprises positive and negative assembled battery lead-out terminal, and wherein
Described insulation board is provided with the openning portion of running through formation along stacked direction,
One of described electrode nipple and described assembled battery lead-out terminal stack setting, near described openning portion, and by the insulation board clamping of described paired configuration, and
Each described assembled battery lead-out terminal is electrically connected on described flat cell by electrode nipple and this assembled battery lead-out terminal that connects near described openning portion.
17. assembled battery as claimed in claim 16 is characterized in that
A plurality of stacked flat cells connect in the mode of being connected in series by the different electrode nipple of electrode electrically connected, and
Described positive assembled battery lead-out terminal and negative assembled battery lead-out terminal are electrically connected on the battery that is positioned at place, two opposite ends along stacked direction.
18. assembled battery as claimed in claim 1 is characterized in that, described insulation board is equipped with insulating barrier with electrical insulation property and the heat dissipating layer that has more high-heating radiation character than described insulating barrier.
19. assembled battery as claimed in claim 1 is characterized in that
Described a plurality of electrode nipple stacks setting, and its end is near the outside of described insulation board, and by the insulation board clamping of described paired configuration, and
Described a plurality of flat cell is electrically connected by the described end that interconnects near the electrode nipple outside the described insulation board.
20. assembled battery as claimed in claim 1 is characterized in that, also comprises position that is used for fixing separator and the housing that holds a plurality of flat cells.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004310545 | 2004-10-26 | ||
| JP310545/04 | 2004-10-26 | ||
| JP376184/04 | 2004-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874782Y true CN2874782Y (en) | 2007-02-28 |
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ID=36742939
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201293557U Expired - Fee Related CN2874782Y (en) | 2004-10-26 | 2005-10-26 | Battery module |
| CNB2005101181679A Expired - Fee Related CN100355113C (en) | 2004-10-26 | 2005-10-26 | Battery module |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101181679A Expired - Fee Related CN100355113C (en) | 2004-10-26 | 2005-10-26 | Battery module |
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| Country | Link |
|---|---|
| CN (2) | CN2874782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834947A (en) * | 2010-04-07 | 2012-12-19 | 日产自动车株式会社 | Battery module |
| CN106663764A (en) * | 2014-08-08 | 2017-05-10 | 日产自动车株式会社 | Production device for battery module |
| CN110692149A (en) * | 2017-11-30 | 2020-01-14 | 株式会社Lg化学 | Battery module with bus bar assembly |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4379467B2 (en) * | 2006-12-11 | 2009-12-09 | 日産自動車株式会社 | Battery module |
| CN101682019B (en) * | 2007-04-24 | 2013-10-23 | 英耐时有限公司 | Energy storage assembly with poka-yoke connections |
| JP4775436B2 (en) | 2008-02-29 | 2011-09-21 | 日産自動車株式会社 | Battery module and battery module manufacturing method |
| US8361647B2 (en) * | 2010-03-19 | 2013-01-29 | GM Global Technology Operations LLC | Reversible battery assembly and tooling for automated high volume production |
| CN102543238A (en) * | 2011-12-29 | 2012-07-04 | 华北电力大学 | Alpha and beta ray capacitive nuclear battery |
| JP6029678B2 (en) * | 2012-10-19 | 2016-11-24 | 住友重機械工業株式会社 | Power storage module and work machine |
| JP6020903B2 (en) * | 2012-10-24 | 2016-11-02 | 株式会社オートネットワーク技術研究所 | Power storage module |
| KR102235655B1 (en) * | 2016-06-17 | 2021-04-01 | 에스케이이노베이션 주식회사 | Secondary battery pack |
| CN108550774B (en) * | 2018-05-02 | 2021-03-26 | 中国航发北京航空材料研究院 | Hole connection structure of combined laminated solid film battery pack |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3522563B2 (en) * | 1999-01-29 | 2004-04-26 | 日本碍子株式会社 | Battery package |
| CN1300889C (en) * | 1999-03-26 | 2007-02-14 | 松下电器产业株式会社 | Laminate sheath type battery |
| JP4220649B2 (en) * | 1999-06-10 | 2009-02-04 | パナソニック株式会社 | Assembled battery |
| JP4102957B2 (en) * | 2000-03-13 | 2008-06-18 | 大阪瓦斯株式会社 | Battery module case |
-
2005
- 2005-10-26 CN CNU2005201293557U patent/CN2874782Y/en not_active Expired - Fee Related
- 2005-10-26 CN CNB2005101181679A patent/CN100355113C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834947A (en) * | 2010-04-07 | 2012-12-19 | 日产自动车株式会社 | Battery module |
| CN106663764A (en) * | 2014-08-08 | 2017-05-10 | 日产自动车株式会社 | Production device for battery module |
| CN106663764B (en) * | 2014-08-08 | 2019-09-24 | 远景Aesc 日本有限公司 | Battery manufacturing apparatus |
| CN110692149A (en) * | 2017-11-30 | 2020-01-14 | 株式会社Lg化学 | Battery module with bus bar assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1767229A (en) | 2006-05-03 |
| CN100355113C (en) | 2007-12-12 |
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