T. L. Kulova, I. M. Gavrilin, I. S. Marinkin, E. V. Kovtushenko, A. M. Skundin, “Effect of electrolyte composition upon the cycleability of Ge-Co-In anodes of lithium-ion batteries”, Mendeleev Commun., 2025, Volume 35, Issue 5,Pages <nobr>563

Communications

Effect of electrolyte composition upon the cycleability of Ge-Co-In anodes of lithium-ion batteries

T. L. Kulova^a, I. M. Gavrilin^a, I. S. Marinkin^b, E. V. Kovtushenko^a, A. M. Skundin^a

^a A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119071 Moscow, Russian Federation
^b National Research University of Electronic Technology, 124498 Zelenograd, Moscow, Russian Federation

Abstract: The effect of a supporting salt in lithium-ion batteries upon the electrochemical performance of Ge–Co–In anodes was studied. The replacement of lithium difluoro(oxalate)borate (LiDFOB) for LiClO₄ enhanced the discharge capacity at elevated C-rates because of a notable improvement in a solid electrolyte interphase (SEI), namely, a decrease in the resistance and thickness of the SEI formed in the LiDFOB electrolyte.

Keywords: lithium-ion battery, aprotic electrolyte, lithium difluoro(oxalate)borate, degradation, solid electrolyte interphase.

Received: 27.01.2025
Accepted: 10.03.2025

Language: English

DOI: 10.71267/mencom.7732