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Manufacturing method of laminated pole group, laminated pole group and battery

A manufacturing method and lamination technology, applied in secondary batteries, battery pack components, final product manufacturing, etc., can solve the problems of high assembly difficulty, low assembly pass rate, and slow lamination speed in the lamination process, and achieve structural Simple, reduce processing cost, and reduce the effect of short circuit rate

Inactive Publication Date: 2021-08-06
RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing lamination process is difficult to assemble, and there are problems such as slow lamination speed, low efficiency, complicated process, high cost and low assembly pass rate, and there is still a lot of room for improvement.

Method used

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  • Manufacturing method of laminated pole group, laminated pole group and battery
  • Manufacturing method of laminated pole group, laminated pole group and battery
  • Manufacturing method of laminated pole group, laminated pole group and battery

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Embodiment Construction

[0035] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0036] figure 1 A step diagram of a method for manufacturing a laminated pole group according to an embodiment of the present invention is shown.

[0037] Such as figure 1 As shown, a method for manufacturing a laminated pole group includes:

[0038] Step S101: Pack a plurality of first pole pieces 2 at equal intervals along the first direction between two layers of diaphragms 1 to form a first pole piece array body, and the two layers of diaphragms 1 in the first pole piece array b...

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Abstract

The invention discloses a manufacturing method of a laminated pole group, a laminated pole group and a battery. The method comprises the following steps that: a plurality of first pole pieces are packaged between two layers of diaphragms at equal intervals along a first direction to form a first pole piece array body, and a continuous clamping bag structure is formed by the two layers of diaphragms in the first pole piece array body along the first direction, a first pole piece is packaged in each clamping bag structure; and the first pole piece array body is folded in a Z-shaped lamination mode, and a second pole piece is inserted between every two adjacent clamping bag structures while the first pole piece array body is folded, so that the lamination pole group formed by sequentially and alternately laminating the plurality of first pole pieces and the plurality of second pole pieces can be formed. The assembly difficulty is reduced, and the lamination speed, the yield and the safety of the battery are improved.

Description

technical field [0001] The present invention relates to the technical field of power batteries, and more specifically, to a method for manufacturing a laminated pole group, a laminated pole group and a battery. Background technique [0002] At present, in power lithium-ion batteries, the more common forming methods of single cells are mainly winding and stacking, which effectively separate the positive electrode sheet and the negative electrode sheet through the separator, and at the same time ensure effective and close contact between them. . [0003] However, with the development of automotive power batteries in the direction of long batteries and large modules, the traditional winding battery can no longer meet the shape requirements of the power battery and the demand for high-energy, high-power power batteries. Batteries produced by sheet technology. Lamination is a very important process in the preparation of batteries. The multi-layer pole pieces are interlaced and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0585H01M50/46H01M50/466H01M10/0525
CPCH01M10/0585H01M10/0525Y02P70/50Y02E60/10
Inventor 毛永志吴宁宁杨道均王建辉张海平
Owner RISESUN MENGGULI NEW ENERGY SCIENCE & TECHNOLOGY CO LTD
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