电解液PS含量对锂离子电池性能的影响

Effect of Electrolyte PS Content on Lithium-ion Battery Performance

考察了电解液中PS添加剂含量对锂离子电池初始容量及内阻、高温储存性能、倍率性能、常温循环性能的影响。电解液中PS添加剂含量对于电池初始容量及内阻影响不大。电解液中PS添加剂含量越高,电池的高温储存性能越好。而随着电解液中PS添加剂含量的增加,电池的倍率性能和常温循环性能均有所下降。综合考虑,电解液中PS添加剂含量为1%时,电池性能较优。

The effect of PS additives concentration in electrolyte on initial capacity,resistance,high temperature storage performance,rate capability,room temperature cycle performance of lithium-ion batteries were investigated. The PS additives concentration had little effect on initial capacityand resistance. When the PS additives concentration increased,the batteries high temperature storage performances were better. However,the batteries rate capability and room temperature cycle performance were worse. Overall consideration,the batteries performances were the best when the PS additives concentration was 1% in electrolyte.