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Flame resistant method and apparatus for battery energy storage system

A battery energy storage system and battery box technology, which is applied in the direction of batteries, secondary batteries, battery pack components, etc., can solve the problems of battery combustion, battery pack thermal runaway, etc., to reduce the degree of damage, delay and avoid thermal runaway chain The effect of the reaction

Inactive Publication Date: 2016-04-06
周哲明
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To solve the safety problem of the current battery energy storage system, it is mainly to solve the problem of thermal runaway of the battery pack, especially the problem of battery combustion that causes the chain reaction of thermal runaway

Method used

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  • Flame resistant method and apparatus for battery energy storage system

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 Shown: a flame retardant device for a battery energy storage system, including a battery box 1 , an air charging port 2 , an exhaust port 3 , a pressure relief valve 4 and an exhaust pipe 5 . The battery box 1 is a sealed box with a battery 13 installed in the box, an air charging port 2, an exhaust port 3 and a pressure relief valve 4 are installed on the battery box wall, and the air charging port 2 and the exhaust port 3 are symmetrical on the battery box wall Install and keep as far away as possible. A valve 6 is installed on the inflation port 2 and the exhaust port 3 . A baffle 7 is installed at the end of the gas charging port 2 for guiding the airflow to flow close to the inner wall of the battery box 1 . The exhaust pipe 5 is installed outside the battery box 1 , one end of the exhaust pipe 5 is connected with the pre...

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Abstract

The present invention relates to the field of battery energy storage system safety, in particular to the field of power battery safety. The invention provides a flame resistant method and apparatus for a battery energy storage system. The oxygen concentration in a battery case is reduced to a certain extent, thereby avoiding strong combustion of a battery in the battery case, cutting off a key link of a thermal runaway chain reaction of a battery pack, and delaying and avoiding the thermal runaway chain reaction to a relatively large extent. When a combustible gas is generated in the battery case, the combustible gas can be discharged to a safety zone outside the battery case by a pressure relief valve and a gas discharge duct. Orderly combustion enables the thermal runaway reaction of the battery pack to be controlled to a larger extent and for a longer time, thereby reducing the harm level of the thermal runaway reaction.

Description

technical field [0001] The invention relates to the field of battery energy storage system safety, in particular to the field of power battery safety. Background technique [0002] With the rapid development of the global new energy revolution, countries around the world are competing to develop industries such as photovoltaics, wind power, and electric vehicles. One of the core technologies is energy storage systems, especially battery energy storage systems. However, under the existing battery technical conditions, the battery will generate a lot of heat during charging and discharging, and may burn and explode under the conditions of overcharging, overheating and short circuit. As a battery pack of an energy storage system, the batteries are densely packed together, and heat is easy to accumulate during use, and it is easy to cause a chain reaction when the battery burns and explodes. The battery energy storage system is an energy-intensive object, and when it burns and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/12H01M10/42H01M10/48H01M10/52H01M50/244H01M50/325H01M50/383
CPCH01M10/4207H01M10/482H01M10/52H01M2200/20H01M50/24H01M50/383H01M50/394Y02E60/10
Inventor 周哲明
Owner 周哲明
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