低温型锂离子动力电池研究进展

Research Progress in Low Temperature Performance of Power Lithium-ion Batteries

锂离子电池被广泛应用于智能电子设备、电动交通工具、绿色储能系统等领域,但电池在低温环境下会出现明显的容量与功率损失、充放电困难、循环寿命衰退、安全性下降等,比在高温下的性能衰退更为显著,制约了进一步的发展。因此,本文根据本征材料和相变材料电池热管理,介绍了低温型电池进展,并总结了当今低温型动力电池研究的不足。

Lithium-ion batteries are widely used in intelligent electronic devices,electric vehicles,green energy storage systems and other fields.However,due to the obvious capacity and power loss,charge and discharge difficulties,c ycle life decline,and safety decline of the battery at low temperatures,the performance decline is more significant than that at high temperatures,which restricts further development.Therefore,according to the thermal management of intrinsic materials and PCM batteries,this paper introduces the progress of low-temperature power batteries,a nd summarizes the shortcomings of current low-temperature power batteries.