锂金属电池用高浓度电解液体系研究进展

吴晨, 周颖, 朱晓龙, 詹忞之, 杨汉西, 钱江锋

Research Progress on High Concentration Electrolytes for Li Metal Batteries

Chen Wu, Ying Zhou, Xiaolong Zhu, Minzhi Zhan, Hanxi Yang, Jiangfeng Qian

表1 基于高浓度电解液(HCEs)的锂金属电池性能对比表

Table 1 Compassion of the cycling performance of Li metal batteries based on high concentration electrolytes (HCEs).

Classification Electrolyte Li metal batteries Cycling Performance Ref. ether-based HCE 7 mol·L-1 LiTFSI /DOL-DME Li//S 74% @ 100th 30 4 mol·L-1 LiFSI-DME Li//Cu CE = 99.2% for 1000 cycles 31 3 mol·L-1 LiFNFSI-DOL/DME Li//LiFePO4 98.5% @ 200th 37 2 mol·L-1 LiDFOB + 2 mol·L-1 LiTFSI -DME Li//NCM333 80% @ 500th 38 3 mol·L-1 LiTFSI-DME Li//O2 cycle life of 40th 39 ester-based HCE 10 mol·L-1 LiFSI-EC/DMC Li//NCM622 86% @ 100th 41 7 mol·kg-1 LiFSI-FEC Li//LiNi0.5Mn1.5O4 94.26% @ 150th 42 4 mol·L-1 LiTFSI+0.5 mol·L-1 LiDFOB-FEC/DMC Li//LiNi0.5Mn1.5O4 88.5% @ 500th 43 sulfone-based HCE LiFSI-SL = 1: 2.5 Li//Cu CE = 99.2% for 400 cycles 45 4 mol·L-1 LiNO3-DMSO Li//Cu CE > 80% for 90 cycles 46 LiTFSI-DMSO = 1 : 3 Li//O2 cycle life of 90th 47 nitrile-based HCE LiTFSI-AN = 1 : 2 Li//Se 86% @ 200th 48 phosphate-based HCE LiFSI-TEP = 1 : 1.5 Li//Cu CE > 80% for 90 cycles 49 ionic liquid-based HCE 5 mol·L-1 LiFSI + 0.16 mol·L-1 NaTFSI-[EMIm]FSI Li//LiCoO2 81% @ 1200th 50