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Battery manufacturing method and manufacturing device

A manufacturing method and storage battery technology, applied in secondary battery manufacturing, lithium storage batteries, non-aqueous electrolyte storage batteries, etc., can solve problems such as shortening production intervals, and achieve the effect of shortening production intervals

Inactive Publication Date: 2016-12-14
ELIIY POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For example, in the manufacturing method described in Patent Document 1, a continuous separator is sandwiched between a pair of rollers, and the separator is bent in a zigzag shape by reciprocating the pair of rollers in the horizontal direction. Every time the roller reciprocates, the positive and negative plates are alternately placed on the separator, so it is difficult to greatly shorten the production interval time

Method used

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  • Battery manufacturing method and manufacturing device
  • Battery manufacturing method and manufacturing device
  • Battery manufacturing method and manufacturing device

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Experimental program
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Embodiment approach 1

[0039] Such as figure 1 as well as figure 2As shown, a prismatic battery (battery) 1 as a lithium ion storage battery includes a prismatic case 2 , and an electrode plate group 3 is housed in the prismatic case 2 . A positive terminal and a negative terminal (not shown) are provided at predetermined positions of the rectangular case 2 . Furthermore, an electrolytic solution obtained by mixing a lithium salt with an organic solvent is filled in the rectangular case 2 .

[0040] The electrode plate group 3 includes a separator 4 that is bent in a zigzag shape, and positive electrode plates 5 and negative electrode plates 6 that are alternately inserted into the valley grooves 4 a of the separator 4 . The positive electrode plates 5 and the negative electrode plates 6 are stacked alternately with the separators 4 interposed therebetween, and the separators 4 are stacked flat. The positive electrode plate 5 and the negative electrode plate 6 have lead portions 5a, 6a protrudin...

Embodiment approach 2

[0071] Figure 13 It is a schematic diagram showing the manufacturing apparatus of the electrode plate group concerning Embodiment 2. In addition, the same code|symbol is attached|subjected to the same member, and overlapping description is abbreviate|omitted.

[0072] The manufacturing apparatus 10A according to this embodiment is such as Figure 13 As shown, one supply mechanism 50 is provided for one zigzag bending mechanism 20 , and the conveyance mechanism 40A is also provided with one holding and conveying member 41 corresponding to the one supply mechanism 50 . The structure holding the transport member 41 is the same as that of the first embodiment, but differs from the first embodiment in that it is fixed at a position facing the zigzag bending mechanism 20 and does not move.

[0073] In this manufacturing apparatus 10A, the separators 4 are supplied and held by the holding and conveying means 41 in the same procedure as in the first embodiment (see Figure 7 ~Figu...

Embodiment approach 3

[0077] Figure 14 is a schematic diagram showing an electrode group according to Embodiment 3, Figure 15 It is a schematic diagram showing the manufacturing apparatus according to Embodiment 3. In addition, the same code|symbol is attached|subjected to the same member, and overlapping description is abbreviate|omitted.

[0078] Such as Figure 14 As shown, the electrode plate group 3A according to Embodiment 3 is a stacked body including a continuous stacked body 100 bent in a zigzag shape and a positive electrode plate 5 inserted into each tooth valley groove 100 a of the stacked body 100 . constituted. The laminated body 100 is a laminated body in which the negative electrode plate 6A is sandwiched between two separators 4A. Therefore, the positive electrode plate 5 inserted into each valley groove 100a of the stacked body 100 faces the negative electrode plate 6A via the separator 4A.

[0079] In addition, even in such a structure of the present embodiment, as in the ...

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Abstract

The invention relates to a manufacturing method and a manufacturing device of a storage battery. Because the separator is sandwiched between the positive and negative plates to manufacture batteries, a pair of rollers are used to clamp the separator, and the rollers are reciprocated in the horizontal direction to bend the separator in a zigzag shape. Since the positive and negative plates are alternately placed on the separator at one time, there is a problem that it is difficult to significantly shorten the production interval. The present invention seeks to solve the above-mentioned problems by making the manufacturing method of the storage battery into a method, etc., which has the following steps: a zigzag bending step, by pressing the separator (4) with a plurality of guide members (21) , bending the above-mentioned separator in a zigzag shape; a laminate forming process, by inserting the positive electrode plate (5) and the negative electrode plate (6) alternately into each tooth valley groove of the above-mentioned separator that is bent in a zigzag shape, forming the above-mentioned positive electrode plate A stacked body alternately overlapping the above-mentioned negative electrode plate via the above-mentioned separator; a removing process, extracting the above-mentioned guide member from each tooth valley groove of the above-mentioned separator; and an extrusion process, extruding the above-mentioned laminated body along the stacking direction; The zigzag bending step is performed after the separator is brought into a tension-free state.

Description

technical field [0001] The present invention relates to a method and apparatus for manufacturing a storage battery used in vehicles, electrical equipment, and the like. Background technique [0002] A storage battery such as a lithium ion storage battery has an electrode plate group formed by alternately overlapping positive electrode plates and negative electrode plates with a separator interposed between positive and negative electrode plates. As one of the manufacturing devices of the electrode plate group, there is a manufacturing device that bends the continuous body of the separator in a zigzag shape, inserts the positive electrode plate and the negative electrode plate into each tooth valley, and presses them into a flat zigzag stacking method. (For example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2004-22449. [0004] In such a zig-zag stacking manufacturing device, for example, a stacking method in which sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/04H01M10/0583
CPCH01M10/0404H01M10/045H01M10/0583H01M10/0459H01M10/052Y02E60/10Y10T29/49108Y10T29/53135Y02P70/50H01M6/005H01M6/02H01M10/0525H01M2220/20H01M2220/30Y02T10/70
Inventor 佐藤寻史山浦诚司坂田卓也
Owner ELIIY POWER
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