JP2003031205A - Method of manufacturing battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a battery capable of preventing the warp of a current collecting connecting body 2 or an inner insulating sealing plate 3 by previously pressing a peripheral part with a pressing fixture 10 in the riveting of a current collecting rivet part 7b of a rivet terminal 7. SOLUTION: An inner insulating sealing plate 3 and an outer insulating sealing plate 6 are arranged in inner and outer peripheral parts of an opening hole 4a of a lid plate 4, a body 2a of a current collecting connector 2 is put on the inner insulating sealing plate 3, the current collecting rivet part 7b projected from a flange part 7a of the rivet terminal 7 is passed from the outside through a through hole 3a and a through hole 6c installed in the inner insulating sealing plate 3 and the outer insulating sealing plate 6, further passed through the opening hole 4a of the lid plate 4, passed through a terminal hole 2c formed in the body 2a of the current collecting connector 2, and in this state, the peripheral part of the terminal hole 2c in the body 2a of the current collecting connector 2 is pressed with the pressing fixture 10, the current collecting rivet part 7b projecting from the terminal hole 2c of the pressed body 2a is riveted from the projecting end side to conduct the insulation, sealing, connecting, and fixing of the rivet terminal 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a battery in which a terminal is penetrated through a battery case body composed of a battery can, a cover plate, and the like and riveting is performed through a packing material so that the terminal is insulated, sealed, and connected. Regarding

[0002]

2. Description of the Related Art FIG. 3 shows a structural example of a large nonaqueous electrolyte secondary battery used in an electric vehicle or the like. In this non-aqueous electrolyte secondary battery, four oblong cylindrical winding type power generating elements 1 are closely arranged and connected in parallel. These power generation elements 1
Are connected in parallel with positive and negative electrodes connected and fixed to the current collector connectors 2 arranged on both end surfaces. The current collector connector 2 is made of an aluminum plate on the positive electrode side and a copper plate on the negative electrode side, and is combed downward from the bottom of the horizontally arranged substantially isosceles triangular plate-shaped main body 2a. The positive electrode or the negative electrode of the power generation element 1 is connected and fixed to the plurality of connecting portions 2b protruding in a line. The main bodies 2a of the current collector / connectors 2 are arranged at both ends of the back surface of the cover plate 4 via the internal insulating sealing plate 3, respectively. The inner insulating sealing plate 3 is an isosceles triangular plate material that is made of an insulating resin or the like and is slightly larger than the main body 2a of the current collector 2 and is provided on the inner side with the periphery of the back surface protruding downward. The main body 2a of the current collector / connector 2 is adapted to fit therein. The lid plate 4 is made of a rectangular stainless steel plate, is fitted into an upper end opening of a battery housing 5 which is a stainless steel container for housing the four power generating elements 1, and is fixed by welding. The lid plate 4 and the battery casing 5 form a battery outer casing of the non-aqueous electrolyte secondary battery.

Rivet terminals 7 are arranged at both ends of the upper surface of the cover plate 4 with an external insulating sealing plate 6 interposed therebetween. The rivet terminal 7 is made of an aluminum material on the positive electrode side and a copper material on the negative electrode side, and the cylindrical current collecting rivet portion 7b is projected from the lower surface of the collar portion 7a having a shape in which four corners of a square shape are chamfered. At the same time, the cylindrical terminal rivet portion 7c is projected from the upper surface of the collar portion 7a.
The reason why the current collecting rivet portion 7b and the terminal rivet portion 7c have a cylindrical shape is to facilitate riveting, and these cylindrical inner holes are formed only to a depth that does not reach the collar portion 7a, and they are mutually formed. It has not penetrated. Further, the current collecting rivet portion 7b and the terminal rivet portion 7c may be cylindrical solid bodies instead of the cylindrical shape. The external insulating sealing plate 6 is a rectangular thick plate material made of insulating resin or the like, and has a substantially square quadrangular recess 6a formed on one end side of the upper surface and a regular hexagonal shape on the other end side. Hexagonal recess 6b
Are formed. Further, a through hole 6c penetrating the back surface is formed in the central portion of the bottom surface of the square recess 6a. The inner diameter of the through hole 6c is large enough to fit the current collecting rivet portion 7b of the rivet terminal 7, but the edge of the opening of the through hole 6c faces downward on the lower surface of the external insulating sealing plate 6. It projects toward the cylinder in a tubular shape slightly longer than the plate thickness of the cover plate 4. The outer diameter of the cylindrical protruding portion at the lower end of the through hole 6c is also provided at a position corresponding to the through hole 6c of the external insulating sealing plate 6 arranged at both ends of the upper surface of the lid plate 4. Is formed with an opening hole 4a having a size for fitting. Further, through holes 3a and terminal holes 2c are formed at positions corresponding to the opening holes 4a in the internal insulating sealing plate 3 and the main body 2a of the current collector 2 arranged at both ends of the lower surface of the lid plate 4. Has been done. The through hole 3a of the inner insulating sealing plate 3 is a hole having the same size as the opening hole 4a of the cover plate 4, but the terminal hole 2c of the current collector connector 2 is the current collecting rivet portion 7b of the rivet terminal 7. It is a hole of a size to which the outer diameter of is fitted.

The cover plate 4 shown in FIG.
As shown in FIG. 4, on the back surface side (upper side in FIG. 4), the main body 2a of the current collector / connector 2 aligns the terminal hole 2c and the through hole 3a with the position of the opening hole 4a via the internal insulating sealing plate 3. The external insulating sealing plate 6 is arranged on the front surface side (lower side in FIG. 4) while aligning the through holes 6c with the positions of the opening holes 4a. At this time, the cylindrical protruding portion of the external insulating sealing plate 6 is covered with the cover plate 4.
Through the opening hole 4a of the internal insulating sealing plate 3
Fit in halfway. Then, the current collecting rivet portion 7b of the rivet terminal 7 is fitted into the through hole 6c of the external insulating sealing plate 6, and the flange portion 7a is fitted into the square recess 6a of the external insulating sealing plate 6. Then, the current collecting rivet portion 7b is
The terminal of the main body 2a of the current collector connector 2 penetrates through the opening hole 4a of the lid plate 4 through the inside of the cylindrical protruding portion of the external insulating sealing plate 6 and also through the through hole 3a of the internal insulating sealing plate 3. It is fitted in the hole 2c, and the tip portion is projected from the back surface of the main body 2a. Therefore, by supporting the collar portion 7a of the rivet terminal 7 and riveting the tip of the current collecting rivet portion 7b of the rivet terminal 7 protruding from the main body 2a of the current collector connection body 2, the rivet terminal 7 and the rivet terminal 7 are collected. The electrical connection body 2 can be connected and fixed. In addition, the inner insulating sealing plate 3 and the outer insulating sealing plate 6 are provided between the rivet terminal 7 and the current collecting connector 2.
The cover plate 4 is clamped and compressed via the
The sealing and fixing of a can be performed. Further, the inner insulating sealing plate 3 and the outer insulating sealing plate 6 are interposed between the rivet terminal 7 or the current collector connector 2 and the cover plate 4, and the opening hole 4a is formed.
The periphery of the current collecting rivet portion 7b penetrating through is also covered with the cylindrical protruding portion of the external insulating sealing plate 6, so that the lid plate 4 can also be reliably insulated.

As shown in FIG. 3, the external insulating sealing plate 6 has a hexagonal recess 6b into which the head of a terminal bolt 8 is fitted and a terminal block 9 arranged on the upper surface thereof. These terminal bolts 8 and terminal blocks 9 are also made of an aluminum material on the positive electrode side and a copper material on the negative electrode side. The terminal bolt 8 has a hexagonal head shape and has a bolt portion protruding upward from the upper surface of the hexagonal head portion. The terminal block 9 has a rectangular plate shape smaller than the external insulating sealing plate 6, and is formed on the other end side while fitting the terminal rivet portion 7c of the rivet terminal 7 into the caulking hole 9a formed on the one end side. The bolt portion of the terminal bolt 8 is passed through the through hole 9b. Therefore, the terminal block 9
By riveting the tip of the terminal rivet portion 7c protruding from the caulking hole 9a, the rivet terminal 7 and the terminal block 9 are connected and fixed, and the terminal bolt 8 is locked to the terminal block 9. Although this terminal bolt 8 is not directly fixed to the terminal block 9, the hexagonal head is fitted into the hexagonal recess 6b of the external insulating sealing plate 6 to prevent rotation, and the terminal block 9 prevents the terminal bolt 8 from coming off. Has been done. And
By fitting a crimp terminal or the like of the power cord to the bolt portion of the terminal bolt 8 and screwing it with a nut or the like, the terminal block 9 and the crimp terminal or the like can be connected and fixed, and thereby the rivet terminal 7 and Wiring connection with an external power cord or the like can be performed.

Incidentally, in FIG. 3, the connecting portion 2 of the current collector 2 is shown.
Although it is shown that the current collecting rivet portion 7b and the terminal rivet portion 7c of the rivet terminal 7 are riveted after the power generating element 1 is connected and fixed to b, in reality, after these riveting is performed. The power generation element 1 is connected and fixed.

[0007]

However, in the above non-aqueous electrolyte secondary battery, the current collecting rivet portion 7b of the rivet terminal 7 is used.
When riveting the tip portion of the main body 2a of the current collector 2 and the internal insulating sealing plate 3, the terminal hole 2c and the through hole 3a.
Since only the opening edge portion of the above is strongly pressed, these peripheral portions are warped and deformed, as shown in FIG. For this reason, the inner insulating sealing plate 3 made of resin or the like adheres to the cover plate 4 only at the opening edge portion of the through hole 3a, and the peripheral edge portion thereof rises, so that the airtightness becomes uncertain and the reliability is poor. There was a problem of fear. Further, when the body 2a of the current collector / connector 2 and the internal insulating sealing plate 3 are warped and deformed, they are disposed outside the designed position inside the battery case, and the power generating element 1 and the like are disposed. There is also a problem that it may cause pressure on other components or cause a decrease in insulation between these components. Moreover, especially in the case of the non-aqueous electrolyte secondary battery of the above conventional example,
Due to the deformation of the main body 2a of the current collector / connector 2, there is a problem in that the arrangement position of the comb-shaped connecting portion 2b is displaced, and the work of connecting and fixing the power generation element 1 becomes troublesome. Further, unlike the above-mentioned conventional example, when the rivet terminal 7 is riveted on the outside of the battery outer casing, there arises a problem that the peripheral portion of the through hole 6c of the external insulating sealing plate 6 is warped and the appearance is deteriorated. .

The present invention has been made in order to cope with such a situation, and when the rivet portion of the terminal is riveted, the peripheral portion is pressed so that the current collecting connector, the packing material and the like are warped. It is an object of the present invention to provide a method for manufacturing a battery capable of preventing the above.

[0009]

According to a first aspect of the present invention, there is provided a battery manufacturing method, wherein a packing material is arranged at least at both inner and outer peripheral portions of an opening formed in a battery outer casing, and the packing material is stacked on the inner packing material. An electrical connection body is arranged, and a rivet portion projecting from the flange portion of the terminal is penetrated from the outside to the opening hole of the battery outer body through a through hole formed in these inner and outer packing materials, and is formed on the current collection connection body. The rivet portion protruding from the pressed terminal hole of the current collector connector by pressing at least the peripheral edge of the terminal hole of the current collector connector while pressing the terminal hole of the current collector connector. The terminals are insulated, sealed, connected and fixed by riveting from the protruding end side.

According to the first aspect of the present invention, the rivet portion projecting from the terminal hole is riveted while pressing the peripheral portion of the terminal hole of the current collector connector, so that only the opening edge portion of the terminal hole is strongly pressed. As a result, the peripheral portion of the current collector and the inner packing material does not warp.

According to a second aspect of the present invention, there is provided a method of manufacturing a battery, wherein a connecting material is arranged so as to overlap the outer packing material, and the rivet portion of the terminal is provided with a through hole formed in the connecting material from the outside and packing materials inside and outside. While penetrating the opening hole of the battery exterior body through the through hole formed in the terminal and also penetrating the terminal hole formed in the current collector, at least the peripheral portion of the terminal hole in the current collector is pressed. It is characterized in that it is pressed against the battery exterior body side.

According to the second aspect of the present invention, the terminal is connected and fixed to the connecting material even outside the battery outer casing by riveting, so that the terminal having an arbitrary connection form can be used.

According to a third aspect of the present invention, in the method for manufacturing a battery, the packing material is arranged on at least both the inner and outer peripheral portions of the opening formed in the battery outer casing, and the current collecting connector is arranged on the inner packing material. In the state where the rivet part protruding from the flange part of the terminal is penetrated from the inside to the opening hole of the battery exterior body through the terminal hole formed in this collector connection body and the through hole formed in the packing material inside and outside , By pressing at least the peripheral portion of the through-hole in the outer packing material and compressing it toward the battery exterior body side, and by riveting the rivet portion projecting from the compressed through-hole of the outer packing material from the projecting end side, the terminal is formed. It is characterized in that it is fixed by insulating sealing connection.

According to the third aspect of the present invention, since the peripheral portion of the through hole of the outer packing material is pressed, the rivet portion projecting from the through hole of the outer packing material is riveted to form the through hole. It is possible to prevent the peripheral edge of the packing material from being warped due to the strong pressure applied only to the opening edge.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a battery, wherein a connecting material is arranged so as to overlap the outer packing material, and the rivet portion of the terminal is arranged from inside to a terminal hole formed in the current collector and inside and outside. While penetrating the opening of the battery exterior body through the through hole formed in the packing material and also penetrating the through hole formed in the connecting material, at least the peripheral portion of the through hole in the connecting material is pressed to prevent the battery It is characterized in that it is pressed against the exterior body side.

According to the fourth aspect of the present invention, the terminal is connected and fixed to the connecting member even by the riveting even outside the battery outer package, so that the terminal having an arbitrary connection form can be used. Moreover, not only the packing material on the outer side, but also the warping of the connecting material can be prevented.
Further, the rivet portion of the terminal is riveted on the metallic connecting material that is arranged so as to be stacked on the outer packing material, so that, similar to the case of riveting on the current collector side,
As the packing material, a material having a relatively low hardness such as resin can be used.

According to a fifth aspect of the present invention, in the method of manufacturing a battery, the peripheral portion of the terminal hole of the current collector or the peripheral portion of the through hole of the outer packing material or the connection material supports the flange portion side of the terminal. The ring-shaped pressing jig presses the flange side.

According to the invention of claim 5, the peripheral portion of the terminal hole or the like of the current collector is pressed by the ring-shaped pressing jig, and the rivet portion of the terminal can be riveted inside the ring-shaped pressing jig. .

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention, and FIG. 1 is a partially enlarged vertical sectional view for explaining a riveting process of a terminal portion of a non-aqueous electrolyte secondary battery,
FIG. 2 is a partially enlarged vertical sectional view showing the structure of the terminal portion of the non-aqueous electrolyte secondary battery after riveting. Note that FIG.
Constituent members having the same functions as those of the conventional example shown in FIG.

In this embodiment, a large non-aqueous electrolyte secondary battery used in an electric vehicle or the like will be described as in the conventional example. This non-aqueous electrolyte secondary battery has exactly the same structure as the conventional example and is manufactured by the same manufacturing method. However, as shown in FIG. 1, the riveting process of the current collecting rivet portion 7b of the rivet terminal 7 is different from that of the conventional example. The details of this riveting step will be described below.

FIG. 1 shows a state in which the lid plate 4 shown in FIG. 3 is turned upside down for riveting, so that the inner insulating sealing plate 3 is arranged above the lid plate 4 and the outer insulating plate 3 is placed outside. The sealing plate 6 is arranged below the lid plate 4. The external insulating sealing plate 6 is arranged by inserting a cylindrical protruding portion protruding from the edge of the opening of the through hole 6c into the opening hole 4a of the lid plate 4 from below. Further, the internal insulating sealing plate 3 is arranged on the upper side so that the through hole 3 a overlaps the opening hole 4 a of the lid plate 4. At this time, the tip of the protruding portion of the outer insulating sealing plate 6 fitted into the opening 4a of the lid plate 4 is fitted into the through hole 3a of the inner insulating sealing plate 3. Further, the main body 2 a of the current collector / connector 2 is arranged above the internal insulating sealing plate 3 such that the terminal hole 2 c overlaps the opening hole 4 a of the cover plate 4.
The rivet terminal 7 is provided with a current collecting rivet portion 7 from below.
b is fitted in the through hole 6c of the external insulating sealing plate 6, and the flange portion 7a is fitted in the square recess 6a.
At this time, the current collecting rivet portion 7b of the rivet terminal 7 passes through the through hole 6c of the external insulating sealing plate 6 to penetrate the opening hole 4a of the lid plate 4 and the through hole 3a of the internal insulating sealing plate 3. . The current collecting rivet portion 7b is used for the current collecting connector 2
The main body 2a also penetrates the terminal hole 2c, and the tip portion projects upward from the terminal hole 2c.

The rivet terminal 7 has a terminal rivet portion 7
It is placed on a jig (not shown) so as to support c and the collar portion 7a from below. Further, the main body 2 a of the current collector / connector 2 is pressed from above by the ring-shaped pressing jig 10. In the pressing jig 10, the opening edge of the terminal hole 2c of the main body 2a is exposed at the central opening of the ring, and the current collecting rivet portion 7b of the rivet terminal 7 can be projected. Therefore, the pressing jig 10 presses the main body 2a of the current collector / connector 2 and the internal insulating sealing plate 3 toward the cover plate 4 side. The lid plate 4 is supported from below via the external insulating sealing plate 6 and the rivet terminal 7.

Current collecting rivet portion 7b of the rivet terminal 7
Riveting is performed by pressing the head of the riveting machine from above. The head of the riveting machine can descend to the tip of the current collecting rivet portion 7b through the central opening of the pressing jig 10. Then, while pressing the cylindrical tip portion of the current collecting rivet portion 7b downward, it is pushed over the opening edge portion on the upper end side of the terminal hole 2c in the main body 2a of the current collector connection body 2 to obtain the state shown in FIG. As shown, the tip of the current collecting rivet portion 7b is formed into a rivet head shape. At this time, the tip of the current-collecting rivet portion 7b of the rivet terminal 7 is located between the main body 2a of the current-collecting connector 2, the internal insulating sealing plate 3, the lid plate 4, and the external insulating sealing plate between the flange portion 7a. 6 are sandwiched and pressed against each other to press the inner insulating sealing plate 3 and the outer insulating sealing plate 6 made of resin, and the rivet terminal 7 is penetrated, and the opening hole of the lid plate 4 is penetrated. 4a is sealed. The rivet terminal 7 itself is fixed to the cover plate 4 via the inner insulating sealing plate 3 and the outer insulating sealing plate 6 in an insulated state, and is connected and fixed to the main body 2 a of the current collector / connector 2. It

However, in the conventional case, the rivet terminal 7 is used.
Since the tip portion of the current collecting rivet portion 7b strongly presses only the opening edge portion of the terminal hole 2c in the main body 2a of the current collecting connector 2, the metal plate at the opening edge portion of the terminal hole 2c is on the cover plate 4 side. The concave portion is curved in the upward direction and warps back. Also, the resin-made internal insulating sealing plate 3
However, similarly to this, there is a possibility that the peripheral portion warps and a gap is formed between the peripheral surface and the back surface of the cover plate 4. However, in the case of the present embodiment, since the pressing jig 10 prevents the main body 2a of the current collector / connector 2 and the internal insulating sealing plate 3 from curling during the riveting operation, as shown in FIG. Even after the pressing jig 10 is removed, the main body 2a of the current collector / connector 2 and the internal insulating sealing plate 3 are prevented from warping and projecting inward from the back surface of the lid plate 4, and the internal insulating sealing is performed. It becomes possible to prevent a gap from being formed between the stop plate 3 and the back surface of the cover plate 4.

When the rivet terminal 7 and the current collector connector 2 are attached to the cover plate 4 by the above-mentioned riveting process, the terminal bolts 8 and the terminal block 9 shown in FIG. The power generation element 1 is connected to the connecting portion 2b of the body 2.
After mounting these, the power generating elements 1 are housed in the battery casing 5, and the lid plate 4 is attached to the upper end opening of the battery casing 5.
Is fitted and fixed by welding.

According to the above method for manufacturing a non-aqueous electrolyte secondary battery, the rivet protruding from the terminal hole 2c is pressed while pressing the peripheral portion of the terminal hole 2c in the main body 2a of the current collector 2 with the pressing jig 10. Since the current collecting rivet portion 7b of the terminal 7 is riveted, it is possible to prevent only the opening edge portion of the terminal hole 2c from being strongly pressed and the peripheral edge portion from warping.

In the above embodiment, the case where the inner insulating sealing plate 3 and the outer insulating sealing plate 6 which are thick resin molded products are used has been described, but the opening hole 4a of the cover plate 4 and the rivet terminal 7 are pressed by pressure. If it is a packing material that can seal the space between and has appropriate heat resistance temperature and electrolyte resistance characteristics,
Any material can be used. For example,
If it is a small battery, it may be a thin and flexible one such as a resin sheet. If insulation between the lid plate 4 and the lid plate 4 is not particularly required, the rivet terminal 7 and the current collecting connector 2 may be used. Also, a soft metal material having low hardness can be used.

Further, in the above embodiment, the rivet terminal 7
The case where the riveting for sealing the opening hole 4a of the cover plate 4 on the side of the current collecting rivet 7b and the riveting of the terminal block 9 with the terminal bolt 8 locked on the side of the terminal rivet 7c were described. However, the rivet terminal 7 itself may have a function for connection to the outside, for example, by forming a bolt portion instead of the terminal rivet portion 7c. Further, a connecting material such as the terminal block 9 or the like may be arranged between the collar portion 7a and the external insulating sealing plate 6, and such a connecting material may be integrally riveted together with the current collector / connector 2. . Further, the collar portion 7a of the rivet terminal 7
Is a member wider than the current collecting rivet portion 7b,
If it is not necessary to provide the terminal rivet part 7c, the head part of the rivet may be used.

In the above embodiment, the rivet terminal 7 is used.
The collar portion 7a of the current collecting rivet portion 7a is arranged outside the lid plate 4.
The case where the tip of b is riveted to the main body 2a of the current collector connector 2 inside the cover plate 4 has been described. However, the collar portion 7a is arranged inside the main body 2a of the current collector connector 2, The rivet portion protruding from 7a may be configured to penetrate the opening hole 4a of the cover plate 4 and be riveted to the external insulating sealing plate 6. Furthermore, the external insulation sealing plate 6
It is also possible to place a connecting material such as the terminal block 9 on the top and rivet the rivet portion to this connecting material.

In the above embodiment, the case where the rivet terminal 7 is fixed to the cover plate 4 by insulation and sealing is described.
The rivet terminal 7 can be fixed to the battery case 5 by insulation and sealing. Furthermore, in the above-described embodiment, the case where the battery exterior body is composed of the battery housing 5 and the cover plate 4 has been described, but the configuration of the battery exterior body is arbitrary.

The material of each component is not limited to those shown in the above embodiment. Furthermore, although the non-aqueous electrolyte secondary battery has been described in the above embodiment, the type of battery is not limited in the present invention.

[0033]

As is apparent from the above description, according to the method of manufacturing a battery of the present invention, the rivet portion of the terminal is riveted while the peripheral portion is pressed, so that the current collector connector, packing material, etc. It is possible to prevent the peripheral portions of the terminal holes, the through holes, and the like from warping, prevent the airtightness and the insulating property from deteriorating, and eliminate the obstacles in the assembling work.

[Brief description of drawings]

FIG. 1 is a partial enlarged vertical cross-sectional view showing an embodiment of the present invention and for explaining a riveting process of a terminal portion of a non-aqueous electrolyte secondary battery.

FIG. 2 shows an embodiment of the present invention and is a partially enlarged vertical cross-sectional view showing a structure of a terminal portion of a non-aqueous electrolyte secondary battery after riveting.

FIG. 3 is an exploded perspective view for explaining the structure of a non-aqueous electrolyte secondary battery.

FIG. 4 is a partially enlarged vertical cross-sectional view showing a conventional example and for explaining a riveting process of a terminal portion of a non-aqueous electrolyte secondary battery.

FIG. 5 is a partially enlarged vertical cross-sectional view showing a conventional example and showing a structure after riveting of a terminal portion of a non-aqueous electrolyte secondary battery.

[Explanation of symbols]

1 power generation element 2 Current collector connection 2a body 2c terminal hole 3 Internal insulation sealing plate 3a through hole 4 lid plate 4a Opening hole 6 External insulation sealing plate 6a Square recess 6c through hole 7 Rivet terminal 7a Tsuba part 7b Current collecting rivet part 9 terminal block 9a Caulking hole 10 Press jig

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5H011 AA01 EE04 FF04 HH08                 5H022 AA09 AA19 BB03 BB19 CC02                       EE01                 5H029 AJ14 BJ02 CJ03 CJ28 DJ02                       DJ03 DJ05 DJ14

Claims (5)

[Claims] 1. A packing material is arranged at least at both inner and outer peripheral edge portions of an opening formed in a battery outer casing, and a current collecting connector is arranged so as to overlap with the inner packing material, and is projected from a flange portion of a terminal. The rivet portion is penetrated from the outside through the through holes formed in the packing material inside and outside the opening hole of the battery exterior body, and is also penetrated into the terminal hole formed in the current collector connector, and the rivet portion is collected. The terminal is insulated and sealed by pressing at least the peripheral portion of the terminal hole in the current collector to press it toward the battery exterior body, and by riveting the rivet part protruding from the terminal hole of the current collector connector pressed from the protruding end side. A method of manufacturing a battery, characterized by connecting and fixing. 2. A battery is arranged by stacking a connecting material on the outer packing material, and a rivet portion of the terminal is provided from the outside through a through hole formed in the connecting material and a through hole formed in the inner and outer packing materials. While passing through the opening hole of the exterior body,
With the terminal hole formed on the current collector connected,
The method for producing a battery according to claim 1, wherein at least the peripheral portion of the terminal hole in the current collector / connector is pressed and pressed to the battery exterior body side. 3. A packing material is arranged at least at both inner and outer peripheral edge portions of the opening formed in the battery outer casing, and a current collecting connector is arranged so as to overlap with the inner packing material and project from the flange portion of the terminal. The rivet part, which has been penetrated from the inside to the opening hole of the battery outer casing through the terminal hole formed in the current collector and the through hole formed in the inside and outside packing material, at least in the outside packing material. By pressing the peripheral edge of the through-hole and pressing it toward the battery exterior body, the rivet part protruding from the through-hole of the compressed outer packing material is riveted from the protruding end side to fix the terminal by insulation sealing connection. A method of manufacturing a battery having the characteristics. 4. A connecting material is arranged so as to overlap with the outer packing material, and a rivet portion of the terminal is formed from inside to a terminal hole formed in the current collector and a through hole formed in the inner and outer packing materials. While penetrating through the opening hole of the battery exterior body through the through hole formed in the connecting material,
The method for manufacturing a battery according to claim 3, wherein at least a peripheral portion of the through hole in the connecting material is pressed to press the battery exterior body side. 5. The terminal portion of the terminal hole of the current collector connector of claim 1 or 2, or the outer periphery of the packing material of claim 3 or the through hole of the connecting material of claim 4, A method for manufacturing a battery, wherein the flange side is supported and pressed by a ring-shaped pressing jig so that the flange side is pressed.