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Battery

A technology for batteries and battery casings, which is used in secondary battery gas removal, secondary battery repair/maintenance, etc.

Pending Publication Date: 2020-03-17
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a battery for the problem of how to improve the safety of the battery

Method used

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Embodiment Construction

[0059] In order to make the above purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0060] The serial numbers numbered for components in this document, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in t...

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Abstract

The invention relates to a battery. The battery comprises a battery shell, an adsorbent and an adsorption shell, wherein the battery shell is encircled to form a first space; the first space is used for accommodating the battery cells. The adsorption shell is accommodated in the first space. And the adsorption shell is encircled to form a second space. The adsorbent is accommodated in the second space. The adsorption shell is provided with a plurality of through holes. And combustible gas is released when the battery monomers are in thermal runaway. Combustible gas enters the adsorption shellthrough the through holes. And the adsorbent adsorbs the combustible gas, so that the concentration of the combustible gas in the battery shell is reduced. The adsorbent in the adsorption shell reduces the overflow amount of the combustible gas, and reduces the risk of combustion caused by the action of the combustible gas and oxygen. Meanwhile, the content of combustible gas in the battery shellis reduced, the volume of the gas is reduced, and the risk of expansion cracking of the battery shell is reduced. Furthermore, the safety of the battery is improved.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a battery. Background technique [0002] In recent years, the penetration rate of new energy vehicles has increased significantly. As people's attention to new energy vehicles continues to increase, incidents such as battery fires have also frequently appeared in the newspapers. [0003] During the thermal runaway process of the battery, the positive and negative electrode materials and electrolyte inside the battery decompose as the battery temperature rises. A large amount of flammable mixture gas is generated inside the battery, such as H 2 , CO or CH 4 Wait. The pressure of the gas inside the battery accumulates, the battery safety valve opens, and the combustible mixture is released to the external environment with the eruption of the battery. The high-temperature combustible mixture is mixed with external oxygen and burns rapidly, causing a fire. How to im...

Claims

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Application Information

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IPC IPC(8): H01M10/52
CPCH01M10/52Y02E60/10
Inventor 刘宇灿王贺武李伟峰张亚军李成欧阳明高李建秋卢兰光杜玖玉韩雪冰冯旭宁
Owner TSINGHUA UNIV
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