Difluoroethylene Carbonate as an Electrolyte Additive for Engineering the Electrolyte-Electrode Interphase of Lithium Metal Batteries

Hanyu Tu; Shuo Li; Chang Liu; Zheng Luo; Lianshan Ni; Yinghao Zhang; Wentao Deng; Guoqiang Zou; Liangjun Zhou; Hongshuai Hou; Xiaobo Ji

doi:10.1021/acsami.3c13096

Difluoroethylene Carbonate as an Electrolyte Additive for Engineering the Electrolyte-Electrode Interphase of Lithium Metal Batteries

ACS Appl Mater Interfaces. 2023 Nov 22;15(46):53533-53539. doi: 10.1021/acsami.3c13096. Epub 2023 Nov 8.

Authors

Affiliations

¹ State Key Laboratory of Powder Metallurgy, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
² School of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China.

PMID: 37938031
DOI: 10.1021/acsami.3c13096

Abstract

Difluoroethylene carbonate (DFEC) featuring abundant fluorine atoms has been proposed as a multifunctional electrolyte additive to boost the stability of the electrolyte-electrode interphase of lithium metal batteries. Thus, introducing the DFEC additive enables a high capacity retention rate of the Li||NCM811 full cell (up to 75% after 200 cycles) at 4.5 V high voltage.

Keywords: dendrite growth; difluoroethylene carbonate; electrolyte additive; electrolyte–electrode interphase; lithium metal battery.