锂离子电池电解液SEI成膜添加剂的研究进展

胡华坤,薛文东,霍思达,李勇,蒋朋

Review of SEI film forming additives for electrolyte of lithium ion battery

Huakun HU,Wendong XUE,Sida HUO,Yong LI,Peng JIANG

表2 无添加剂和1.0%LiPO₂F₂样品的EIS拟合结果^［118］

Table 2 EIS fitting results of samples with no additive and 1.0% LiPO₂F₂^［118］

Sample	After the 1st cycle		After the 50th cycle		After the 150th cycle
Sample	r_SEI/Ω	r_ct/Ω	r_SEI/Ω	r_ct/Ω	r_SEI/Ω	r_ct/Ω
no additive	14.4	8.6	1.7	30.2	4.6	162.5
1% LiPO₂F₂	10.3	5.7	1.9	3.1	2.8	3.8