In order to investigate the thermal runaway characteristics of the high-capacity lithium-ion batteries with different anode materials,experiment has been conducted on the thermal runaway of high-capacity 52 Ah lithium iron phosphate battery(LFP)and 53 Ah nickel-cobalt-manganese lithium-ion battery(NCM)with the same capacity and with different anode materials in different states of charge(SOC),and the macroscopic behaviors and characteristics of the two batteries are compared by examining the parameters such as thermal runaway behavior and thermal runaway characteristic parameter.As the experiment results indicate:the thermal runaway of NCM is more intense than that of LFP;greater SOC means NCM and LFP are more susceptible to thermal runaway and the thermal runaway is more intense;the thermal runaway of NCM is more sensitive to the change of SOC.
关键词
锂离子电池/磷酸铁锂电池/三元锂离子电池/热失控/荷电状态/特征参数/温升/正极材料
Key words
lithium-ion battery/lithium iron phosphate battery/nickel-cobalt-manganese lithium-ion battery/thermal runaway/state of charge/characteristic parameter/temperature rise/anode material
维普
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