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Battery pack

A battery pack and single battery technology, applied in the field of battery packs, can solve problems such as affecting the safety of people in the vehicle cabin, and achieve the effect of improving safety, ensuring safety, and ensuring safety.

Active Publication Date: 2020-05-05
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a battery pack to alleviate the technical problem that the high-temperature and high-pressure gas generated when the battery pack in the prior art is thermally runaway is erupted toward the cabin, which affects the safety of personnel in the cabin.

Method used

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Embodiment Construction

[0066] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and ope...

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Abstract

The invention relates to the technical field of batteries, in particular to a battery pack. The battery pack comprises a box body, wherein the bottom of the box body is of a cavity structure; and a plurality of single batteries, which are stacked on the bottom of the box body, an explosion-proof valve being arranged on the end surface, facing the bottom of the box body, of each single battery, wherein a weak area is arranged on the structural layer, facing the explosion-proof valve, of the bottom of the box body, and when any single battery is in thermal runaway, gas in the single battery canbe collected into the cavity structure through the weak area and exhausted. High-temperature and high-pressure gas generated by thermal runaway of the battery pack is jetted in the direction deviatingfrom the vehicle cabin, and gas in the box body can be rapidly exhausted to the external environment, so that the battery pack has the characteristic of high safety.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery pack. Background technique [0002] In recent years, the emergence of new energy vehicles has played a huge role in promoting social development and environmental protection. Power battery packs, as a rechargeable battery, are the power source of new energy vehicles and are widely used in the field of new energy vehicles. [0003] Among them, the battery pack will have some side reactions in the case of short circuit, overcharge, etc., and then generate a certain amount of gas at a certain temperature. When the generated gas increases to a certain level, it will cause thermal runaway, and then the explosion-proof The valve exploded and sprayed high-pressure and high-temperature gas in the direction of the cabin, affecting the safety of the cabin. Contents of the invention [0004] The purpose of the present invention is to provide a battery pack to alleviate the te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/12H01M50/103H01M50/20H01M50/209H01M50/242H01M50/271H01M50/30
CPCH01M50/30H01M50/271H01M50/242H01M50/209H01M50/103Y02E60/10H01M50/249H01M50/291H01M50/3425H01M50/383H01M2220/20H01M50/317H01M2200/20H01M50/233H01M50/222H01M10/625H01M10/6556H01M10/6561H01M50/143
Inventor 储焰南钱木季进清
Owner CONTEMPORARY AMPEREX TECH CO
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