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Cover plate assembly and preparation method thereof, battery and battery module

A battery module and cover plate technology, which is applied to battery pack parts, circuits, structural parts, etc., can solve the problems of riveting holes blocking welding positioning, battery module rework, and inaccuracy, so as to improve accuracy and improve finished products. rate, reducing the effect of defective rate and scrap rate

Active Publication Date: 2021-04-27
CALB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application discloses a cover plate assembly, which is used to solve the problem in the prior art that the riveting holes are easily blocked by busbars, resulting in inaccurate welding positioning, resulting in rework or scrapping of battery modules

Method used

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  • Cover plate assembly and preparation method thereof, battery and battery module
  • Cover plate assembly and preparation method thereof, battery and battery module
  • Cover plate assembly and preparation method thereof, battery and battery module

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0026] figure 1 It is a schematic structural diagram of a cover assembly 10 according to an embodiment of the present application. Such as figure 1 As shown, in an embodiment of the present application, the cover plate assembly 10 includes a cover plate 11 , a pole 12 and a pressure block 13 . Wherein, the cover plate 11 is a plate-shaped structure, which has an installation hole for installing the pole 12 , and the pole 12 passes through the installation hole of the cover plate 1...

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Abstract

The invention relates to the field of batteries, and particularly discloses a cover plate assembly and a preparation method thereof, a battery and a battery module. The cover plate assembly comprises a pole, and a riveting hole is formed in the end surface of the pole; in the hole depth direction of the riveting hole, the riveting hole comprises a first sub-hole and a second sub-hole which are communicated with each other, the first sub-hole is arranged close to the end surface of the pole, and the second sub-hole is arranged far away from the end surface of the pole; the minimum inner diameter of the first sub-hole is larger than the maximum inner diameter of the second sub-hole, so that a transition face of an annular structure is formed between the first sub-hole and the second sub-hole; and the second sub-hole is a blind hole. The cover plate assembly can solve the problems of reworking or scrapping of the battery module caused by inaccurate welding positioning due to the fact that the riveting holes are easily shielded by the busbar in the prior art.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a cover plate assembly and a preparation method thereof, a battery and a battery module. Background technique [0002] In the assembly process of the battery module, in order to realize the series-parallel connection between different batteries, usually a plurality of batteries that need to be connected in series-parallel connection are welded to the same bus bar, so as to achieve the purpose of series-parallel connection between different batteries. When the battery is welded to the bus bar, the pole on the battery is welded to the bus bar. In the automatic production process, in order to ensure the accuracy of the welding position and prevent problems such as partial welding, it is necessary to detect the relative position of the battery and the bus bar before welding. When the position deviation of the two is within the specified range, the Do the welding. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/15H01M50/176
CPCY02E60/10
Inventor 刘志辉杨培
Owner CALB CO LTD
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