Battery cover components, single cells, battery modules, power battery packs and electric vehicles

A battery cover, battery module technology, applied in battery pack parts, battery cover/end cover, battery, etc., can solve problems such as explosion, battery fire, and potential safety hazards.

Active Publication Date: 2021-01-19
重庆弗迪电池研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high temperature and sparks generated by the arcing effect may cause dangerous accidents such as battery fire and explosion, posing safety hazards

Method used

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  • Battery cover components, single cells, battery modules, power battery packs and electric vehicles
  • Battery cover components, single cells, battery modules, power battery packs and electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0028] In this disclosure, unless stated otherwise, the orientation words used such as "up, down, left, right" are usually defined based on the directions of the corresponding drawings, and "inner and outer" refer to Inside and outside of the corresponding part contour. Among them, this article involves the description of the outer end, the inner end, and the inner and outer directions, such as the inner terminal, the outer terminal, the inner end surface, and the outer end surface are relative to the inside and outside of the battery along the axial direction of the pole, and relative to the ring shape. The "inner and outer" of the member, such as the outer...

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PUM

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Abstract

The disclosure relates to a battery cover assembly, a single battery, a battery module, a power battery pack, and an electric vehicle. The battery cover assembly includes a cover, an electrode terminal, a current interruption structure, and an arc extinguishing portion. on the cover plate, and includes an electrode inner terminal and an electrode outer terminal, the electrode inner terminal and the electrode outer terminal are electrically connected through the current interruption structure, and the current interruption structure can be disconnected under the action of gas pressure The electrical connection between the electrode inner terminal and the electrode outer terminal, wherein the arc extinguishing portion is located on a side of the current interruption structure facing the outside of the battery. That is to say, the arc extinguishing part is a "gateway" arranged on the battery cover assembly to isolate the inside of the battery from the outside of the battery, thereby effectively preventing the arc generated by the arc effect from spreading to the outside of the battery when the battery is in abnormal operation, and improving the performance of the battery. safety performance.

Description

technical field [0001] The present disclosure relates to the field of batteries, in particular, to a battery cover assembly, a single battery using the battery cover assembly, a battery module including the battery module, a power battery including the battery module, and a battery including the power battery. Batteries for electric vehicles. Background technique [0002] The electrode terminals of existing batteries generally include electrode inner terminals and electrode outer terminals, wherein the electrode inner terminals are used for electrical connection with the battery cell, and the electrode outer terminals are used for connecting with other single cells or battery modules, etc. The input and output of the current of the cell. In order to improve the safety performance of the battery and prevent serious safety problems such as battery combustion and explosion caused by overcharging, etc., the existing battery is electrically connected between the electrode inner ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/572H01M50/147H01M50/578
CPCH01M2220/20H01M50/147H01M50/578Y02E60/10
Inventor 程晗蒋露霞王信月鲁鹏周江涛
Owner 重庆弗迪电池研究院有限公司
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