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Duralumin pole piece and battery module

A technology for battery modules and battery packs, applied in battery pack components, multi-mode batteries, secondary battery manufacturing, etc., can solve the problems of poor welding reliability, complex welding process, low production efficiency, etc., and achieve reliable welding and lightening. Module weight and high production efficiency

Pending Publication Date: 2018-05-18
江西安驰新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complicated welding process between electrode sheet and battery pack, poor welding reliability, high cost and low production efficiency when producing battery modules, the present invention provides a duralumin pole piece and a battery module

Method used

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  • Duralumin pole piece and battery module
  • Duralumin pole piece and battery module
  • Duralumin pole piece and battery module

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Embodiment Construction

[0028] In order to solve the problems of complicated welding process of electrode sheet and battery pack, poor welding reliability, high cost and production efficiency when producing battery modules, the present invention provides a hard aluminum pole piece and battery module. The present invention will be further explained below in conjunction with the drawings.

[0029] Such as figure 1 with figure 2 As shown, a hard aluminum pole piece is used in a battery module. The battery module includes a NxM matrix battery pack (1) formed by stacking a plurality of square batteries. Each battery is provided with opposite polarities. The duralumin pole piece (3) includes a total output pole piece (31), a double row duralumin pole piece (32) and a single row duralumin pole piece (33).

[0030] Such as figure 2 , image 3 with Figure 4 As shown, the total output pole piece (31) includes a rectangular duralumin pole piece (311) and a hexagon head screw (312) that are combined by a pressure ...

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Abstract

The invention relates to a duralumin pole piece and a battery module. The duralumin pole piece includes total output pole pieces, double-row duralumin pole pieces and a single-row duralumin pole piece. Each total output pole piece includes a rectangular duralumin pole piece and an embossed teeth equipped hexagonal head screw that are combined together by a pressure riveting process, and is used for electric connection with a post terminal serving as a total output pole of the battery module. Each double-row duralumin pole piece is an H-shaped structure composed of one connecting part and two welding parts, and is used for electrically connecting a plurality of post terminals of two adjacent columns of batteries in the battery module. The single-row duralumin pole piece is used for used forelectric connection of other post terminals except the total output pole in the outermost two columns of battery post terminals in the battery module. The rectangular duralumin pole pieces, the single-row duralumin pole piece and the double-row duralumin pole pieces are all coated with wiredrawing surfaces. The battery module consists of a battery pack, packing straps and a duralumin pole piece,and the duralumin pole piece and the battery pack adopt laser welding. The duralumin pole piece and the battery module provided by the invention have the advantages of high production efficiency, lowproduction cost, simple and convenient welding, and high welding reliability.

Description

Technical field [0001] The present invention belongs to the technical field of new energy electric vehicles. More specifically, the present invention relates to a hard aluminum pole piece and a battery module. Background technique [0002] With the increasing maturity and improvement of electric vehicle technology, electric vehicles are widely used in daily life. Because electric vehicles require more power and the voltage needs to match the motor, it is usually necessary to connect multiple batteries in series and / or parallel To form a battery module, the currently commonly used battery module grouping methods mainly include: 1. The copper sheet is directly welded to the cell electrodes to realize the series and parallel connection between the cells; 2. The copper electrode sheet that can cover the length of multiple cells is used , The copper electrode sheet is welded to multiple aluminum substrates at positions corresponding to multiple battery poles, and then the aluminum sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/26H01M10/04H01M50/531
CPCH01M10/0445H01M50/531Y02E60/10Y02P70/50
Inventor 柯颖华谢佳付照坤郭娜娜白科
Owner 江西安驰新能源科技有限公司
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