CO2惰化式锂离子电池储能集装箱研究

锂离子电池作为储能载体之一，为新能源并网、电网调峰与调频提供了重要支持。锂离子电池储能技术发展的同时，安全问题不能忽视。通过分析锂离子电池储能集装箱爆炸事故原因可知：锂离子电池热失控释放出的可燃烟气是爆炸的主要成因。根据燃烧三要素原理，设计了CO₂气体保护式磷酸铁锂电池热失控阻燃对比试验。根据试验结果，初步规划设计了CO₂惰化式锂离子电池储能集装箱，以期为锂离子电池储能电站的安全设计提供技术支撑。

Study on CO2 inerting lithium-ion battery energy storage container

As one of the energy storage carriers, lithium-ion batteries provide important support for new energy grid connection, power grid peak shaving and frequency modulation. With the development of lithium-ion battery energy storage technology, the safety problem cannot be ignored. By analyzing the causes of the explosion accident of the lithium-ion battery energy storage container, it can be seen that the combustible smoke released by the thermal runaway of the lithium-ion battery is the main cause of the explosion. According to the principle of three elements of combustion, a comparative test of thermal runaway flame retardancy of lithium iron phosphate battery with CO2 gas protection was designed. According to the test results, the CO2 inerting type lithium-ion battery energy storage container is preliminarily planned and designed to provide technical support for the safety design of lithium-ion battery energy storage power station.