Battery design method and battery

A design method and battery technology, applied in the field of vehicles, can solve the problems of poor thermal conductivity and explosion-proof performance, and achieve the effects of ensuring heat insulation, avoiding battery explosion, and avoiding further expansion

Pending Publication Date: 2022-02-25
VOYAH AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing power battery thermal runaway explosion-proof scheme has poor heat conduction effect, so the explosion-proof performance of the existing power battery thermal runaway is poor

Method used

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  • Battery design method and battery
  • Battery design method and battery
  • Battery design method and battery

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Embodiment Construction

[0034] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below through the drawings and specific examples. The detailed description of the technical solutions of the embodiments is not a limitation to the technical solutions of this specification. In the case of no conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0035] In this document, relational terms such as first and second etc. are used only to distinguish one entity or operation from another without necessarily requiring or implying any such relationship between these entities or operations. Actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus ...

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Abstract

The invention discloses a battery design method and a battery, which relate to the technical field of vehicles, and can improve the thermal runaway explosion-proof performance of the battery. The design method of the battery comprises the steps that pressure generated when heat is sprayed out of an anti-explosion valve when a single battery cell of the battery is subjected to thermal runaway is tested, the thermal runaway pressure of the single battery cell is obtained, and the anti-explosion valve is used for being arranged at the top end of the battery cell; according to the thermal runaway pressure of the single battery cell, parameters of holes in a heat insulation plate are determined, the heat insulation plate is used for being arranged on the side, away from the battery cell, of the anti-explosion valve, the set number of holes are used for being arranged into a ring at intervals, and the ring is used for surrounding a flow guide area; and the flow guide area is used for enabling the orthographic projection of the battery cell on the heat insulation plate to fall into the flow guide area.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a battery design method and the battery. Background technique [0002] At present, the number of electric vehicles in the market is increasing year by year, and customers have higher and higher demands on driving range and fast charging time. For this reason, the charging and discharging power and energy density of power batteries increase accordingly, resulting in frequent fire incidents of power batteries. The fire accident of the power battery is usually caused by the thermal runaway of the battery. Because the battery releases a large amount of chemical energy in an instant, the temperature of the gas in the battery pack rises rapidly, and the air pressure rises rapidly, which causes the battery to explode and cause a battery fire accident. [0003] However, the existing thermal runaway explosion-proof scheme of the power battery has poor heat conduction effect, so...

Claims

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Application Information

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IPC IPC(8): H01M10/658H01M50/30H01M50/502H01M10/04
CPCH01M50/502H01M50/30H01M10/658H01M10/04Y02E60/10Y02P70/50
Inventor 王扬
Owner VOYAH AUTOMOBILE TECH CO LTD
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