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Battery security protection device

A protection device and battery safety technology, applied in the direction of battery, secondary battery repair/maintenance, secondary battery, etc., can solve problems such as explosion and power battery fire, and achieve the effect of reducing the risk of explosion and avoiding the decomposition of electrolyte

Pending Publication Date: 2017-11-10
安徽统凌科技新能源有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of fire risk and explosion risk in existing power batteries, the present invention provides a battery safety protection device

Method used

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Embodiment Construction

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] see figure 1 As shown, this embodiment discloses a battery safety protection device, including a battery case 1, a battery module 4 and a fire extinguishing device 2, the battery module 4 and the fire extinguishing device 2 are packaged in the battery case 1 Inner cavity, the fire extinguishing device 2 includes a material storage part 21 and a temperature control valve 22, the fire extinguishing agent is accommodated in the material storage part 21, the temperature control valve 22 is connected to the material storage part 21, in the When the temperature in the ...

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Abstract

In order to overcome the problems of fire risks and explosion risks of the exiting power batteries, the invention provides a battery security protection device. The battery security protection device comprises a battery shell, a battery module and a fire extinguishing device, the battery module and the fire extinguishing device are packaged in the inner cavity of the battery shell, the fire extinguishing device comprises a material storage part and a temperature control valve, a fire extinguishing agent is held in the material storage part, the temperature control valve is connected with the material storage part and is used for connecting the inner cavity of the material storage part with the inner cavity of the battery shell at a certain temperature. The battery security protection device provided by the invention can extinguish the fire in the case of fire of the battery module so as to reduce the explosion risk.

Description

technical field [0001] The invention belongs to the technical field of battery safety, and in particular relates to a battery safety protection device. Background technique [0002] As the power source of most existing electric vehicles, the power battery has high requirements on its safety performance. However, in the process of long-term use, fire and explosion accidents of power batteries occur from time to time. The fire and explosion of lithium-ion batteries are The thermal runaway of lithium-ion batteries is mainly caused by the violent chemical exothermic reaction between the electrode and the electrolyte under suitable conditions. In addition, during the charging and discharging cycle of the power battery, some physical and chemical changes will occur in the battery components, which will lead to the deterioration of the battery performance. These changes will affect the safety of the battery to a certain extent. [0003] Most of the existing battery safety protecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42A62C3/16
CPCA62C3/16H01M10/4207H01M2200/10Y02E60/10
Inventor 杨力平张敬
Owner 安徽统凌科技新能源有限公司
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