CN109216596A - A kind of battery - Google Patents
A kind of battery Download PDFInfo
- Publication number
- CN109216596A CN109216596A CN201810904578.8A CN201810904578A CN109216596A CN 109216596 A CN109216596 A CN 109216596A CN 201810904578 A CN201810904578 A CN 201810904578A CN 109216596 A CN109216596 A CN 109216596A
- Authority
- CN
- China
- Prior art keywords
- cap
- shell
- electrode portion
- cap ontology
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 claims abstract description 46
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000004880 explosion Methods 0.000 claims abstract description 19
- 239000004020 conductor Substances 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000649 photocoagulation Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/394—Gas-pervious parts or elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of batteries.The battery includes: shell, and shell is internally provided with accommodating chamber；Energy-storage travelling wave tube, energy-storage travelling wave tube are arranged in accommodating chamber；And cap assemblies, cap assemblies include the cap ontology for being sealingly disposed in the open end of shell, and cap ontology structure in the form of sheets offers anti-explosion groove on cap ontology, the connection of one collector of cap ontology and energy-storage travelling wave tube, cap ontology are connect with external equipment.The set-up mode of cap assemblies can effectively reduce the volume of accommodating chamber shared by cap assemblies, the quality of energy-storage travelling wave tube can be made to do bigger, the capacity of battery be improved, convenient for the Miniaturization Design of battery.
Description
Technical field
The present invention relates to technology field of energy storage device, more particularly, to a kind of battery.
Background technique
Battery, especially lithium ion battery generally include shell, battery core and cap assemblies.The cap assemblies include button
The upper cover and lower cover being combined, and the outer peripheral insulated ring of upper cover and lower cover is set.Upper cover and lower cover are conductor,
The two is in the laminated structure of middle part protrusion.In assembling, the protrusion point of two laminated structures is oppositely arranged, mutual in edge
Connection.Anti-explosion groove is provided on lower lid.Lower cover and the anode or cathode of battery core connect.
However, structure is complicated for this cap assemblies, volume is big, is unfavorable for the Miniaturization Design of battery.
Accordingly, it is desirable to provide a kind of new technical solution, to solve the above technical problems.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of battery.
According to the first aspect of the invention, a kind of battery is provided.The battery includes: shell, and the inside of the shell is set
It is equipped with accommodating chamber；Energy-storage travelling wave tube, the energy-storage travelling wave tube are arranged in the accommodating chamber；And cap assemblies, the cap group
Part includes the cap ontology for being sealingly disposed in the open end of the shell, cap ontology structure in the form of sheets, in the cap
Anti-explosion groove is offered on lid ontology, the cap ontology is connect with a collector of the energy-storage travelling wave tube, the cap ontology
It is connect with external equipment.
Optionally, the cap ontology is connect by metal wire with the collector.
Optionally, the cap assemblies further include cylindrical conductor, one end of the cylindrical conductor and the cap ontology
Middle part is fixedly connected, and the energy-storage travelling wave tube is the laminated structure that can be wound, the energy-storage travelling wave tube outside the cylindrical conductor,
And one of them described collector is connect with the cylindrical conductor.
Optionally, the side of the cylindrical conductor forms groove, and the collector is welded in the groove；Or institute
Stating cylindrical conductor includes axially disposed gap, and the collector is fixed in the gap, is conductively connected with realizing.
Optionally, the cap ontology includes forming connection and first electrode portion and second electrode portion insulated from each other, institute
It states first electrode portion to connect with the plus plate current-collecting body of the energy-storage travelling wave tube, the cathode in the second electrode portion and the energy-storage travelling wave tube
Collector connection.
Optionally, the second electrode portion structure annular in shape, the annular in the first electrode portion and the cyclic structure
At fixation, insulation component is provided between the first electrode portion and the second electrode portion.
Optionally, cylindrical conductor, the energy storage member are formed from the first electrode portion to the internal stretch of the accommodating chamber
Part is the laminated structure that can be wound, and the energy-storage travelling wave tube is outside the cylindrical conductor, the plus plate current-collecting body and the column
The connection of shape conductor.
Optionally, the first electrode portion includes pole and the cap portion radially projecting by one end of the pole, described
The inner ring of pole and the cyclic structure, which is formed, to be connected, and the cap portion is located in the accommodating chamber, the cap portion and described second
Separately, the cap portion is connect by metal wire with the plus plate current-collecting body electrode portion.
Optionally, the second electrode portion include cover and extended to form from the inward flange of the cover to side first
Sidewall portion and second side wall portion extended to form from the outer edge of the cover to the same side, second electrode portion lid close
The open end, second side wall portion are welded on the outside of the shell, are provided with relief hole on the housing, and described
The position corresponding with the relief hole of two sidewall portions is provided with the anti-explosion groove, and the insulation component is arranged on described first
In the space that sidewall portion surrounds.
Optionally, the material of the insulation component is ceramics, rubber, plastics or silica gel.
Optionally, the cap ontology is embedded in the open end, and with the case weld.
Optionally, the side of the cap ontology forms ring-shaped step structure, and the small diameter part of the ring-shaped step structure is inserted
Enter in the open end, the large diameter part of the ring-shaped step structure is concordant with the outer wall of the shell.
Optionally, the shell includes necking part positioned at the open end and projecting inward to the accommodating chamber, the cap
Lid ontology is arranged on the necking part；Or support is provided in the inside of the shell and close to the position of open end
Part, the cap ontology are arranged on the supporting element.
Optionally, it is formed with insulating sealer in the outer edge injection molding of the cap ontology, the cap ontology is embedded in institute
It states in open end, the side of the insulating sealer is fixed on the open end by way of roll-in.
Optionally, the cap ontology includes the thinning part positioned at middle part, and the anti-explosion groove is provided with the thinning part.
Optionally, the shell includes the bottom opposite with the cap assemblies, is provided in the bottom outer surface recessed
Concave portion offers fluid injection through-hole in the recessed portion, further includes the sealing element that lid is located at the outside of the fluid injection through-hole, described
Sealing element is located in the recessed portion, and the outer surface other than the recessed portion of the outer surface of the sealing element and the bottom is flat
Together.
According to one embodiment of the disclosure, the set-up mode of cap assemblies can effectively reduce the shared appearance of cap assemblies
It receives the volume of chamber, the quality of energy-storage travelling wave tube can be made to do bigger, improve the capacity of battery, set convenient for the miniaturization of battery
Meter.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the cross-sectional view of battery according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of cap assemblies according to an embodiment of the invention.
Fig. 3 is the structural schematic diagram of another cap assemblies according to an embodiment of the invention.
Fig. 4 is the cross-sectional view of second of battery according to an embodiment of the invention.
Fig. 5 is the cross-sectional view of the third battery according to an embodiment of the invention.
Fig. 6 is the installation diagram of cap assemblies and shell according to an embodiment of the invention.
Fig. 7 is the installation diagram of another cap assemblies and shell according to an embodiment of the invention.
Fig. 8 is the cross-sectional view of a part of the 4th kind of battery according to an embodiment of the invention.
Fig. 9 is the cross-sectional view of the 5th kind of battery according to an embodiment of the invention.
Figure 10 is the partial enlarged view of Fig. 9.
Description of symbols:
11: shell；12: insulating surfaces pad；13: cap ontology；14: plus plate current-collecting body；15: slot rolling；16: anti-explosion groove；17: subtracting
Thin portion；18: metal wire；19: cylindrical conductor；20: groove；21: gap；23: ceramic ring；24: cap portion；25: pole；26: the first
Sidewall portion；27: second side wall portion；28: small diameter part；29: large diameter part；30: necking part；31: supporting element；32: insulating sealer；
33: recessed portion；34: fluid injection through-hole；35: cathode pole piece；36: the first isolation films；37: positive electrode；38: the second isolation films；39:
Sealing element；40: second electrode portion；41: relief hole；42: annular groove.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
According to one embodiment of present invention, a kind of battery is provided.As shown in Figure 1, battery can be one-shot battery or
Person's secondary cell.The battery includes shell 11, energy-storage travelling wave tube and cap assemblies.Shell 11 is cylindrical or square tubular knot
Structure.Shell 11 is internally provided with accommodating chamber.Shell 11 has an open end or two open ends.
Energy-storage travelling wave tube is arranged in accommodating chamber.Energy-storage travelling wave tube is used for energy storage.Preferably, energy-storage travelling wave tube is the piece that can be wound
Shape structure.For example, the battery core of lithium ion battery.This structure can be wound into setting structure according to the structure of accommodating chamber, adapt to
Property is strong, safety coefficient is high.As shown in Figure 1, energy-storage travelling wave tube include positive electrode 37, cathode pole piece 35 and be located at positive electrode 37
The first isolation film 36 between cathode pole piece 35.It is enclosed with the second isolation film 38 on the outside of energy-storage travelling wave tube, is used for and shell
11 insulate.Positive electrode 37 is connect with plus plate current-collecting body 14.Cathode pole piece 35 is connect with negative current collector.In energy-storage travelling wave tube
Upper and lower end face be additionally provided with the insulating surfaces pad 12 for insulating with shell 11.
Cap assemblies include the cap ontology 13 for being sealingly disposed in the open end of shell 11.Sealed set refers to cap sheet
Body 13 is fixedly connected with the open end of shell 11 and closes accommodating chamber.Cap ontology 13 is conductor, such as metal, conductive glass
Glass, conductivity ceramics etc..The structure in the form of sheets of cap ontology 13.Optionally, cap ontology 13 can be plane platelet structures or tool
There is setting shape laminated structure.For example, flaky metallic material it is stamped, shearing, assembling etc. processing methods, formed have protrusion,
Recess, the isostructural laminated structure of hollow out.According to the shape of the cross section of shell 11, cap ontology 13 can be circle, rectangle,
The shapes such as ellipse.
Anti-explosion groove 16 is offered on cap ontology 13.Anti-explosion groove 16 is inwardly stamped to form by the surface of laminated structure.?
When pressure in accommodating chamber reaches setting value, anti-explosion groove 16 is washed open by high pressure gas, to carry out pressure release, is prevented because of accommodating chamber internal pressure
It is strong excessively high and lead to battery explosion.
In one example, as shown in Figure 1, cap ontology 13 includes the thinning part 17 positioned at middle part.Anti-explosion groove 16 opens up
In thinning part 17.The thickness of thinning part 17 is smaller than the thickness at other positions.For example, by way of punching press, in cap ontology 13
Middle part formed thinning part 17, or casting when by change mold shape middle part formed thinning part 17.Thinning part 17
Structural strength it is relatively low.Anti-explosion groove 16 is opened up relative in thicker region, when the position opens up, same pressure rating
The depth of anti-explosion groove 16 can be smaller.
Alternatively, the anti-explosion groove 16 of same depth, sensitiveer for the raising of pressure in accommodating chamber, can more effectively let out
Pressure.
In this example embodiment, cap ontology 13 is connect with a collector of energy-storage travelling wave tube.For example, cap ontology 13 and anode
Perhaps negative current collector connects anode or cathode of such cap ontology 13 as battery to collector 14.When cap ontology 13
When two parts with mutually insulated, two parts are connect with plus plate current-collecting body 14 and negative current collector respectively.In this way, cap
Component is simultaneously as anode and cathode, to export electric energy or charge.
Cap ontology 13 is connect with external equipment.For example, directly contacting or being directly fixedly connected.13 conduct of cap ontology
The electrode of battery directly exports electric energy, or charges.Cap ontology 13 is single layer structure, rather than by upper cover and lower cover group
At multilayered structure.This setup can effectively reduce the volume of accommodating chamber shared by cap assemblies, and energy storage can be made first
The quality of part is done bigger, the capacity of battery is improved, convenient for the Miniaturization Design of battery.For example, can be used as wireless headset
Aciculiform battery etc..
In one example, as shown in Fig. 4,5 or 9, cap ontology 13 is connect by metal wire 18 with collector.By swashing
Metal wire 18 and collector (for example, plus plate current-collecting body 14) and cap assemblies are welded to connect by the mode of photocoagulation.Metal wire 18
Small, the at low cost, welding that takes up space is easy.Preferably, metal wire 18 is gold thread, silver wire or aluminum steel etc., in use
Above-mentioned material is capable of forming passivation, to effectively extend the service life of battery.
In addition, metal wire 18 can arbitrarily be bent, it is practical.
Certainly, the type of metal wire 18 is not limited to the above embodiments, those skilled in the art can according to actual needs into
Row selection.
In other examples, metal wire 18 can also be replaced using FPCB (flexible circuit board), this mode equally can
Play the role of electrical connection.
In one example, cap assemblies further include cylindrical conductor 19.One end of cylindrical conductor 19 and cap ontology 13
Middle part is fixedly connected.Energy-storage travelling wave tube is the laminated structure that can be wound.Energy-storage travelling wave tube is outside cylindrical conductor 19, and wherein one
A collector is connect with cylindrical conductor 19.
Specifically, cylindrical conductor 19 can be cylinder, square column, ovallized column or curved surface column.By welding, gluing
The modes such as knot, interference fit are fixed on the middle part of cap ontology 13.Preferably, as Figure 2-3, cylindrical conductor 19 and cap
Ontology 13 is integrally formed T-shaped structure or cross-shaped structure.The structural strength of this mode is high, and processing and fabricating is easy.
Cylindrical conductor 19 provides spool for the winding of energy-storage travelling wave tube, and the structure of winding can be made closer, improve process velocity.Especially
It is suitable for the windings of compact battery.
Optionally, as shown in Fig. 2, the side of cylindrical conductor 19 forms groove 20.For example, passing through punching press, plasma cut
Mode form groove 20.Collector (such as plus plate current-collecting body 14) is welded in groove 20.
It is also possible that as shown in figure 3, cylindrical conductor 19 includes axially disposed gap 21.For example, being cut by plasma
It cuts to form gap 21.Collector is fixed in gap 21, is conductively connected with realizing.For example, being matched by welding, bonding, interference
The mode of conjunction is processed plus plate current-collecting body 14 and is fixed in gap 21.Then, it then is wound.By the way that cylindrical conductor 19 is arranged, no
It is electrically connected with other setting metal wire 18 etc..
In one example, cap ontology 13 includes forming connection and first electrode portion and second electrode portion insulated from each other
40.The connection of the plus plate current-collecting body 14 of first electrode portion and energy-storage travelling wave tube, the negative current collector in second electrode portion 40 and energy-storage travelling wave tube
Connection.For example, first electrode portion and second electrode portion 40 are the different zones divided in main surface.Main surface is along axial vertical view
When battery, the surface of cap ontology 13.Preferably, first electrode portion and second electrode portion 40 form the axial height along battery
Difference.This more easily discriminates two electrode portions, in order to be attached with external equipment.
It is insulated between two regions by insulation component.Insulation component can be insulating cement, plastics, ceramics, glass
Etc. the material for being able to carry out insulation.In this way, cap ontology 13 can be simultaneously as the anode of battery and cathode.First
Electrode portion and second electrode portion 40 can directly be connect with the positive and negative collector of battery, can also be connected indirectly, as long as can
Form conducting.
In one example, the structure annular in shape of second electrode portion 40.The inner ring of first electrode portion and cyclic structure forms solid
It is fixed.Insulation component is provided between first electrode portion and second electrode portion 40.For example, insulation component is ceramic material or glass
Glass material.First electrode portion is in cylindrical structure.
For example, first ceramic batch is filled between first electrode portion and second electrode portion 40, is then carried out in production
Sintering, to form ceramic ring 23.Ceramic ring 23 is fixed together with first electrode portion and second electrode portion 40 during the sintering process.
Ceramic ring 23 has good insulation and sealing effect.
Preferably, first electrode portion, ceramic ring 23 and second electrode portion 40 are arranged concentrically.In this way, battery
Structure is more regular, and first electrode portion and second electrode portion 40 and the connection of collector are easier.
Preferably, as viewed in figures 5-8, the first electrode portion upper surface protruding upward in second electrode portion 40.Be PCM into
When row connection, first electrode portion is directly inserted into the via hole of the circuit board of PCM, and forms conducting.This becomes the connection of PCM
It is easy.
In one example, cap ontology 13 is embedded in open end, and is welded with shell 11.As shown in fig. 6, the second electricity
The side in pole portion 40 and the inner wall of open end are welded to connect.Shell 11 is connect with negative current collector.Second electrode portion 40 passes through shell
Body 11 is connected with negative current collector.
In one example, as shown in figs 6-8, from first electrode portion (for example, pole 25) to the internal stretch of accommodating chamber
Form cylindrical conductor 19.Energy-storage travelling wave tube is the laminated structure that can be wound.Energy-storage travelling wave tube is outside cylindrical conductor 19, anode collection
Body 14 is connect with cylindrical conductor 19.First electrode portion and cylindrical conductor 19 form integral structure.The integral structure is by conductor material
It is made.Plus plate current-collecting body 14 and the connection type in first electrode portion are as previously described.In this way, the volume of energy-storage travelling wave tube
Around becoming easy.
In addition, the structure does not have to that the conducting element for connecting collector Yu first electrode portion is in addition arranged.
In one example, as shown in figure 5, first electrode portion includes pole 25 and radially projecting by one end of pole 25
Cap portion 24.The inner ring of pole 25 and cyclic structure, which is formed, to be connected.It forms connection and refers to that the position of the two is relatively fixed, can be
It is directly connected to be also possible to link together by other component.Cap portion 24 is located in accommodating chamber.Cap portion 24 and second electrode portion
40 separately.Cap portion 24 is connect by metal wire 18 with plus plate current-collecting body 14.The structure proximate in first electrode portion is in rivet.Cap portion
24 setting reduces welding difficulty so that the bonding area of metal wire 18 increases.Cap portion 24 and second electrode portion 40 separately,
It can be connected in this way to avoid positive and negative electrode.
For example, pole 25 is fixed in the inner ring in second electrode portion 40 by insulation component, insulation component is as previously described.
In one example, as shown in fig. 7, second electrode portion 40 includes cover and extended from the inward flange of cover to side
The first side wall portion 26 of formation and second side wall portion 27 extended to form from the outer edge of cover to the same side.Second electrode portion
40 lids are closed in open end.Second side wall portion 27 is welded on the outside of shell.For example, by second sidewall by way of laser welding
Portion 27 is welded on the outside of shell 11.Relief hole 41 is provided on shell 11.Relief hole 41 is through-hole, is connected with accommodating chamber
It is logical.The position corresponding with relief hole 41 of second side wall portion 27 is provided with anti-explosion groove 16.Insulation component is arranged on the first side wall
In the space that portion 26 surrounds.
In this example embodiment, the first side wall portion 26 and second side wall portion 27 are respectively used to connect with shell 11 and insulation component.
Cap ontology 13 is located at the outside of shell 11, and cover can be done thinner.In this way, the space in the accommodating chamber that cap assemblies occupy
It is few, more spaces can be reserved for energy-storage travelling wave tube, improve the capacity of battery.
The part positioned at open end of second side wall portion 27 and shell 11 forms interlaced, this sealing surface both made
Product becomes much larger, and is conducive to the sealing of battery.
In addition, becoming easy welding between the two.
It, will not first device above the axial direction to battery when carrying out pressure release in addition, the side of battery is arranged in anti-explosion groove 16
Part causes to damage.
In addition, in this example embodiment, shell 11 is connect with the negative current collector of energy-storage travelling wave tube, such as the bottom of shell 11 and negative
The connection of pole collector.By welding, second electrode portion 40 is connected with negative current collector.
In one example, as shown in figure 5, the side of cap ontology 13 forms ring-shaped step structure, ring-shaped step structure
28 insertion opening end of small diameter part in.The large diameter part 29 of ring-shaped step structure is concordant with the outer wall of shell 11.In this example embodiment, cap
Lid ontology 13 is inserted into the open end of shell 11 by the way of grafting first.Ring-shaped step structure makes cap ontology 13 and shell
Positioning between 11 becomes easy, and assembly precision is high.For example, can be by the way of laser welding by small diameter part after grafting
28 together with case weld.
In addition, large diameter part 29 is concordant with the outer wall of shell 11, this makes the structure of battery more regular.
In one example, as shown in figs. 9-10, insulating sealer 32 is formed in the outer edge injection molding of cap ontology 13.
For example, insulating sealer 32 is the materials such as plastics, rubber, silica gel, it is molded to form insulating sealer in such a way that dijection is molded
32.Preferably, the side of cap ontology 13 is provided with annular groove 42.Insulating sealer 32 partially into annular groove 42,
The binding force of insulating sealer 32 Yu cap ontology 13 can be effectively improved in this way.
Cap ontology 13 is embedded in open end.The side of insulating sealer 32 is fixed on opening by way of roll-in
End.Slot rolling 15 is formed on shell by roll-in.Slot rolling 15 is inwardly projecting, thus the side of extruding insulation sealing element.This side
Formula becomes easy cap ontology 13 and the connection of shell, and sealing effect is good.
In one example, as shown in figure 4, shell 11 includes necking part positioned at open end and projecting inward to accommodating chamber
30.Cap ontology 13 is arranged on necking part 30.For example, necking part 30 is formed by way of roll-in.Cap ontology 13 is logical
The insulating sealer 32 for crossing outside is contacted with necking part 30.The upper and lower end face of energy-storage travelling wave tube is provided with insulated ring, is used for and shell
11 necking part 30 and bottom insulation.In this way, the positioning of cap assemblies is more acurrate, and assembly precision is higher.
It is also possible that being provided with supporting element 31 in the inside of shell 11 and close to the position of open end.Supporting element 31 is ring
Shape, bulk etc..Supporting element 31 is the materials such as metal, plastics, rubber.For example, supporting element 31 is consolidated by way of bonding, welding
It is scheduled on the inside of shell 11.Supporting element 31 being capable of support cap ontology 13.Cap ontology 13 is arranged on supporting element 31.Example
Such as, as shown in figure 9, the cap ontology 13 with insulating sealer 32 is placed on supporting element 31.Then, pass through the side of roll-in
Shell 11 and insulating sealer 32 are fixed formula, and close up to open end.The setting of supporting element 31 will not destroy shell
The stability of the overall structure of body 11, battery is more preferable.
In one example, as shown in figs. 1 and 4, shell 11 includes the bottom opposite with cap assemblies.For example, bottom with
Side wall is integrally formed.Bottom outer surface is provided with recessed portion 33.Fluid injection through-hole 34 is offered in recessed portion 33.Battery is also
The sealing element 39 in the outside of fluid injection through-hole 34 is located at including covering.Sealing element 39 is located in recessed portion 33.Sealing element 39
Flush with outer surface other than the recessed portion 33 of outer surface and bottom.
For example, the stamped mode of recessed portion 33 is formed, lug boss is formed in accommodating chamber.Negative current collector is welded on
Lug boss.This makes shell 11 can be used as the cathode of battery.Fluid injection through-hole 34 is offered in recessed portion 33.It is installed in battery pack
Bi Hou, by fluid injection through-hole 34 to accommodate intracavitary administration electrolyte.In this way, not needing in advance in assembled battery to energy storage member
Part soaks electrolyte.
Sealing element 39 is for sealing fluid injection through-hole 34.For example, sealing element 39 is plastics, rubber or silica gel material.
It is fixed on by way of bonding in recessed portion 33.Above-mentioned material can play good sealing function.
In other examples, cap assemblies are two, and are fixed on two open ends of the shell 11 of tubular respectively.
Positive and negative electrode of two cap assemblies respectively as battery.
In other examples, the negative current collector of first electrode portion and energy-storage travelling wave tube connects.First electrode portion is as battery
Cathode.Second electrode portion is connect with plus plate current-collecting body.Anode of the second electrode portion as battery.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (16)
1. a kind of battery, it is characterised in that, include:
Shell, the shell are internally provided with accommodating chamber；
Energy-storage travelling wave tube, the energy-storage travelling wave tube are arranged in the accommodating chamber；And
Cap assemblies, the cap assemblies include the cap ontology for being sealingly disposed in the open end of the shell, the cap
Ontology structure in the form of sheets, offers anti-explosion groove on the cap ontology, and one of the cap ontology and the energy-storage travelling wave tube
Collector connection, the cap ontology are connect with external equipment.
2. battery according to claim 1, which is characterized in that the cap ontology is connected by metal wire and the collector
It connects.
3. battery according to claim 1, which is characterized in that the cap assemblies further include cylindrical conductor, the column
It is fixedly connected in the middle part of one end of conductor and the cap ontology, the energy-storage travelling wave tube is the laminated structure that can be wound, the storage
Energy element is outside the cylindrical conductor, and one of them described collector is connect with the cylindrical conductor.
4. battery according to claim 3, which is characterized in that the side of the cylindrical conductor forms groove, the afflux
Body is welded in the groove；Or
The cylindrical conductor includes axially disposed gap, and the collector is fixed in the gap, to realize conduction
Connection.
5. battery according to claim 1, which is characterized in that the cap ontology include to be formed connection and it is insulated from each other
First electrode portion and second electrode portion, the first electrode portion are connect with the plus plate current-collecting body of the energy-storage travelling wave tube, and described second
Electrode portion is connect with the negative current collector of the energy-storage travelling wave tube.
6. battery according to claim 5, which is characterized in that the second electrode portion structure annular in shape, first electricity
The inner ring of pole portion and the cyclic structure forms fixation, is provided between the first electrode portion and the second electrode portion absolutely
Edge element.
7. battery according to claim 5, which is characterized in that prolong from the first electrode portion to the inside of the accommodating chamber
It stretches to form cylindrical conductor, the energy-storage travelling wave tube is the laminated structure that can be wound, and the energy-storage travelling wave tube is wound on the cylindrical conductor
Outside, the plus plate current-collecting body is connect with the cylindrical conductor.
8. battery according to claim 6, which is characterized in that the first electrode portion includes pole and by the pole
The inner ring of the radially projecting cap portion in one end, the pole and the cyclic structure, which is formed, to be connected, and the cap portion is located at the appearance
Receive intracavitary, separately, the cap portion is connect by metal wire with the plus plate current-collecting body for the cap portion and the second electrode portion.
9. battery according to claim 6, which is characterized in that the second electrode portion includes cover and by the cover
The first side wall portion that inward flange is extended to form to side and extended to form from the outer edge of the cover to the same side second
Sidewall portion, second electrode portion lid are closed in the open end, and second side wall portion is welded on the outside of the shell, in institute
It states and is provided with relief hole on shell, the position corresponding with the relief hole of second side wall portion is provided with the anti-explosion groove,
The insulation component is arranged in the space that the first side wall portion surrounds.
10. battery according to claim 1, which is characterized in that the material of the insulation component is ceramics, rubber, plastics
Or silica gel.
11. battery according to claim 1, which is characterized in that the cap ontology is embedded in the open end, and with
The case weld.
12. battery according to claim 1, which is characterized in that the side of the cap ontology forms ring-shaped step structure,
The small diameter part of the ring-shaped step structure is inserted into the open end, large diameter part and the shell of the ring-shaped step structure
Outer wall is concordant.
13. battery according to claim 1, which is characterized in that the shell includes positioned at the open end and to described
The projecting inward necking part of accommodating chamber, the cap ontology are arranged on the necking part；Or
It is provided with supporting element in the inside of the shell and close to the position of open end, the cap ontology is arranged on the branch
In support member.
14. battery according to claim 1, which is characterized in that be formed with absolutely in the outer edge injection molding of the cap ontology
Edge sealing element, the cap ontology are embedded in the open end, and the side of the insulating sealer is consolidated by way of roll-in
It is scheduled on the open end.
15. battery according to claim 1, which is characterized in that the cap ontology includes the thinning part positioned at middle part, institute
It states anti-explosion groove and is provided with the thinning part.
16. battery according to claim 1, which is characterized in that the shell includes the bottom opposite with the cap assemblies
Portion, is provided with recessed portion in the bottom outer surface, offers fluid injection through-hole in the recessed portion, further includes that lid is located at the note
The sealing element in the outside of fluid through-hole, the sealing element are located in the recessed portion, the outer surface of the sealing element and institute
State the flush with outer surface other than the recessed portion of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904578.8A CN109216596A (en) | 2018-08-09 | 2018-08-09 | A kind of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810904578.8A CN109216596A (en) | 2018-08-09 | 2018-08-09 | A kind of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109216596A true CN109216596A (en) | 2019-01-15 |
Family
ID=64989015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810904578.8A Pending CN109216596A (en) | 2018-08-09 | 2018-08-09 | A kind of battery |
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| Country | Link |
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| CN (1) | CN109216596A (en) |
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| TWI727500B (en) * | 2019-04-04 | 2021-05-11 | 大陸商常州微宙電子科技有限公司 | Lithium ion battery cover plate assembly and energy storage device |
| WO2024087294A1 (en) * | 2022-10-28 | 2024-05-02 | 烯晶碳能电子科技无锡有限公司 | Energy-storage element unit structure, and manufacturing method for energy-storage element unit |
| WO2024136118A1 (en) * | 2022-12-23 | 2024-06-27 | 주식회사 엘지에너지솔루션 | Battery cell, battery pack, and vehicle comprising same |
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