Battery pack

A technology for battery packs and battery packs, applied to secondary batteries, battery covers/end covers, battery pack components, etc., capable of solving problems such as thermal runaway, thermal runaway of battery packs, and vehicle spontaneous combustion

Pending Publication Date: 2021-10-26
ENVISION DYNAMICS TECH (JIANGSU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor found that the current battery pack is prone to thermal runaway when it is used improperly, especially in summer, when the outdoor high temperature and the high temperature generated in the battery pack when the vehicle is running will cause serious thermal runaway of the battery pack and even cause a fire. cause the vehicle to spontaneously ignite

Method used

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

[0054] In the following description, for the purposes of explaining the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be p...

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Abstract

The invention discloses a battery pack. The battery pack comprises a shell, a plurality of battery modules and a supporting piece, the battery modules are sequentially arranged in the shell, and every two adjacent battery modules are electrically connected through an electric connecting piece; and the supporting piece is made of a heat-resistant insulating material, is arranged in the shell and is used for fixing the electric connecting piece. The inventor discovers that the main reason of thermal runaway of the battery pack is that after an output pole seat for supporting an output pole of a battery module is thermally melted, an electric connecting piece electrically connected with the output pole shifts and is in contact with other conductive pieces to cause short circuit in the battery pack, so that the improved battery pack comprises a supporting piece which is made of a heat-resistant insulating material; and the supporting piece is used for fixing the electric connecting piece, and the supporting piece is supported by the heat-resistant insulating material, so that the supporting piece is not easy to thermally melt, the electric connecting piece can be prevented from shifting, and the safety of the battery pack can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of batteries, and in particular to a battery pack. Background technique [0002] With the rapid development of electric vehicles, the energy density and safety requirements of battery packs are getting higher and higher. Larger battery packs are the trend to increase the energy density of battery packs and reduce costs. [0003] The inventor found that the current battery pack is prone to thermal runaway when it is used improperly, especially in summer, when the outdoor high temperature and the high temperature generated in the battery pack when the vehicle is running will cause serious thermal runaway of the battery pack and even cause a fire. Causing the vehicle to spontaneously ignite. Contents of the invention [0004] The purpose of the embodiments of the present invention is to provide a battery pack, which reduces the occurrence of thermal runaway of the battery pack and improves the sa...

Claims

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Application Information

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IPC IPC(8): H01M50/209H01M10/658H01M50/244H01M50/249H01M50/258H01M50/262H01M50/271H01M50/289H01M50/503H01M50/514H01M50/24
CPCH01M50/209H01M50/244H01M50/249H01M50/258H01M50/262H01M50/289H01M50/271H01M50/503H01M50/514H01M10/658H01M50/24Y02E60/10
Inventor 姚丽君蒋碧文王超刘萱何亚飞
Owner ENVISION DYNAMICS TECH (JIANGSU) CO LTD
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