Adsorption structure of high-capacity battery

An adsorption structure and large-capacity technology, which is applied to structural parts, battery pack parts, secondary battery gas removal, etc., can solve the problems of low effect, high cost, and high equipment integration, so as to reduce the risk of fire and improve Adsorption efficiency, the effect of delaying the discharge speed

Pending Publication Date: 2021-11-09
SHAANXI OLYMPUS POWER ENERGY CO LTD
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  • Abstract
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Problems solved by technology

There is also a circulating cooling system added to the battery to control the temperature rise of the battery and suppress the thermal runaway of the battery, but this solution has a high degree of equipment integration, the effect is not outstanding and the cost is high

Method used

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  • Adsorption structure of high-capacity battery
  • Adsorption structure of high-capacity battery

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Embodiment Construction

[0020] 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.

[0021] 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.

[0022] The technical solutions of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 , 2 As shown, the application provides an adsorption structure for a large-capacity battery, including an adsorption chamber 2 connected to the battery (the battery is not completely drawn, only a cover plate with an explosion vent) 4, and the adsorption chamber 2 A one-way pressure relief valve 1 connected to the upper end; wherein, the one-way pressure relief valve 1 i...

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Abstract

The invention discloses an adsorption structure of a high-capacity battery. The adsorption structure comprises an adsorption cavity connected with the battery and a one-way pressure release valve connected with the upper end of the adsorption cavity, wherein the one-way pressure release valve is connected with the upper end of the adsorption cavity through a first connecting pipe. According to the structure disclosed by the invention, safe and effective adsorption treatment on high-temperature mixed gas and high-temperature liquid generated in the battery can be realized, the adsorption cavity communicated with an explosion venting opening outside the battery shell is arranged, so thatafter the high-temperature mixed gas and the high-temperature liquid in the battery enter the adsorption cavity through the opened explosion venting opening, the high-temperature liquid and most combustible gas and toxic gas such as methane and carbon monoxide are absorbed by a filtering buffer layer and an adsorption layer, further the concentration is greatly reduced, residual gas does not have the capability of burning with oxygen, and finally, the residual gas is safely emptied through the one-way release valve at the tail end of the adsorption cavity.

Description

technical field [0001] The embodiments of the present application belong to the technical field of batteries, and in particular relate to an adsorption structure of a large-capacity battery. Background technique [0002] Lithium batteries have the characteristics of high voltage, large specific energy, and long charging and discharging life, and are widely used in many fields such as power and energy storage. Lithium batteries use lithium metal or lithium alloy as the negative electrode material and use non-aqueous electrolyte solution. During storage or circulation, the electrolyte will inevitably react with the positive active material and generate gas. At the same time, overcharge, overdischarge, short circuit, high temperature and other improper use of the battery will cause a large amount of heat to accumulate inside the battery, and the organic electrolyte will be decomposed by high temperature to produce a large amount of gas, such as: CO, CO 2 、CH 4 、C 2 h 4 、C ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/52H01M50/30
CPCH01M10/52H01M50/30Y02E60/10
Inventor 刘毅雷政军翟腾飞郑高锋张三学
Owner SHAANXI OLYMPUS POWER ENERGY CO LTD
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