CO_(2)惰化式锂离子电池储能集装箱研究

Study on CO_(2) inerting lithium-ion battery energy storage container

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CO_(2)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CO_(2)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。

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 CO_(2) gas protection was designed.According to the test results,the CO_(2) 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.