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Collector plate and battery module

A technology of battery modules and current collectors, which is applied to battery components, secondary batteries, circuits, etc., can solve the problems of low assembly efficiency and complex overall structure of heating components, and achieve easy assembly, simple and stable structure, and heating high efficiency effect

Pending Publication Date: 2021-05-07
HUATING HEFEI POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall structure of the existing heating components is complex and the assembly efficiency is low

Method used

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  • Collector plate and battery module
  • Collector plate and battery module
  • Collector plate and battery module

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Embodiment Construction

[0024] At present, new energy electric vehicles have become the development trend of automobiles and are gradually becoming popular. The battery packs used as the power source of electric vehicles are mostly lithium-ion batteries. Under low temperature conditions, the battery pack will experience phenomena such as reduced capacity, increased internal resistance, and increased internal side reactions. Especially during charging, lithium deposition is very prone to occur, which will greatly reduce battery life and increase safety risks. In order to solve this problem, at present, heating components are usually installed in the battery pack to heat the battery cells, such as heating film, heating liquid serpentine flat tube, etc., and the battery cells are heated by contacting and winding the battery cells. However, the overall structure of the existing heating assembly is complex and the assembly efficiency is low.

[0025] In order to improve the above-mentioned problems in th...

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Abstract

The embodiment of the invention provides a collector plate and a battery module, and relates to the technical field of batteries. The collector plate provided by the embodiment of the invention is provided with the mounting groove for arranging the heating wire, so that the collector plate can transfer the heat of the heating wire to the battery cell through the tab while providing a conductive effect, and plays a role in heating the battery cell. The heating wire is installed and fixed through the collector plate, so complex accessories of a traditional heating assembly are reduced, the structure is stable, and cost is low. And the battery cell is directly heated through the collector plate, so that the heating efficiency is high. The battery module provided by the embodiment of the invention comprises a heating wire, a plurality of battery cells and at least two current collecting plates, the current collecting plates abut against the pole pieces of the battery cells through the pole lugs, and the heating wire is embedded in the mounting groove. The battery module is simple and stable in structure, relatively low in cost, easy to assemble and good in heating effect.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular, to a current collector and a battery module. Background technique [0002] For new energy electric vehicles in cold regions, the temperature of the lithium-ion battery in the battery pack is likely to be lower than 0°C, and the ideal operating temperature range of the lithium-ion battery is 15-40°C. Under low temperature conditions, the battery pack will experience phenomena such as reduced capacity, increased internal resistance, and increased internal side reactions. Especially during charging, lithium deposition is very prone to occur, which will greatly reduce battery life and increase safety risks. In order to solve this problem, at present, the battery module in the battery pack is mostly equipped with a heating film / wire and a serpentine flat tube of heating fluid for heating. However, the overall structure of the existing heating assembly is complex and the ass...

Claims

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Application Information

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IPC IPC(8): H01M50/503H01M50/507H01M50/249H01M50/258H01M50/213H01M10/615H01M10/625H01M10/6571
CPCH01M10/615H01M10/625H01M10/6571Y02E60/10
Inventor 孙嘉李德连周鹏
Owner HUATING HEFEI POWER TECH