Battery explosion venting structure

An explosion venting and battery technology, which is applied to secondary batteries, structural parts, battery pack components, etc., can solve the problems that processing is not easy to achieve, the deformation of the rubber valve core is difficult to calculate, and the explosion venting effect is not ideal. Sealed, simple structure

Pending Publication Date: 2021-11-09
SHAANXI OLYMPUS POWER ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deformation of the rubber valve core is difficult to calculate, the processing is not easy to realize, and the explosion venting effect is not ideal

Method used

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Embodiment Construction

[0018] The present application will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0019] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0020] The technical solution of the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as Figures 1 to 4 As shown, the present application provides a battery explosion venting structure, which includes a cylindrical casing 1, and also includes a movable explosion venting body 3 arranged in the casing 1, and is arranged in the casing 1 and is used to control The elastic member 7 at the position of the movable explosion venting body 3 , wherein the elastic member 7 is arranged in the inner...

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Abstract

A disclosed battery explosion venting structure comprises a cylindrical shell, a movable explosion venting body arranged in the shell, and an elastic piece arranged in the shell and used for controlling the position of the movable explosion venting body, wherein the elastic piece is arranged in an inner cavity of the movable explosion venting body. During liquid injection, a liquid injection connector is in threaded connection with the shell, the movable explosion venting body is extruded to move from the sealing section to the liquid injection section, due to the fact that the outer diameter of the sealing ring is smaller than the inner diameter of the liquid injection section, liquid injection/vacuumizing can be conducted, after liquid injection is completed, the movable explosion venting body is pushed to the sealing section through the elastic piece to be sealed, the functions of vacuumizing, liquid injection and explosion venting are achieved, the structure is simple, sealing of a battery is facilitated, and repeated use can be realized.

Description

technical field [0001] The application relates to the technical field of lithium batteries, in particular to a battery explosion venting structure with functions of vacuuming and liquid injection. Background technique [0002] Lithium-ion batteries have been widely used in digital electronic products, power tools, electric mopeds, electric vehicles, photovoltaic power generation and wind power generation for peak and valley energy storage. In recent years, with the use of lithium-ion batteries more and more widely, lithium-ion batteries Some of the existing defects began to be exposed, some leaked, some caught fire, and some exploded. There are many reasons for these problems, one of the most important reasons is that this type of battery is a liquid battery, and the battery There are electrolyte substances. These liquid substances vaporize and expand after being overheated. When they expand to a certain internal pressure, they may burst the welded joints of the battery case...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/342H01M50/636H01M10/0525
CPCH01M50/3425H01M50/636H01M10/0525Y02E60/10
Inventor 张三学雷政军翟腾飞刘毅郑高锋
Owner SHAANXI OLYMPUS POWER ENERGY CO LTD
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