2-(Trifluoroacetyl) thiophene as an electrolyte additive for high-voltage lithium-ion batteries using LiCoO2 cathode

Yi Sun, Jian Huang, Hongfa Xiang, Xin Liang, Yuezhan Feng, Yan Yu

Table 1 Impedance parameters of LiCoO2 cycles in the baseline electrolyte and the baseline electrolyte with 0.5 wt% TFPN-addition after 100 cycles.

Sample R0 (ohm) R1 (ohm) R2 (ohm) Baseline electrolyte 6.72 77.7 554.7 0.5 wt% TFPN addition 9.97 47.4 47.8