Issue 45, 2023

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi0.8Co0.1Mn0.1O2/graphite full cell under the low temperature of −10 °C

Abstract

A functional electrolyte containing propyl 4-methylbenzenesulfonate (PMBS) additive is developed to improve the performance of the LiNi0.8Co0.1Mn0.1O2 (NCM811)/graphite pouch full cells, especially the cycling lifetime under low temperature. It is indicated that the addition of PMBS into the electrolyte facilitates the formation of stable and low impedance interfacial films of the NCM811 cathode and graphite anode due to the preferential decomposition of PMBS over solvent molecules. Compared to the cells without additives, the cells containing 2% PMBS exhibit enhanced performance, and the capacity retention rate increases from 55.97% to 87.20% after 1200 cycles at 25 °C. And under the temperature condition of −10 °C, the capacity retention rate increases from 55.37% to 98.02% after 100 cycles, indicating the unique effect of PMBS on the low-temperature cycling performance of high-nickel lithium-ion batteries.

Graphical abstract: A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi0.8Co0.1Mn0.1O2/graphite full cell under the low temperature of −10 °C

Supplementary files

Article information

Article type
Paper
Submitted
31 Jul 2023
Accepted
27 Oct 2023
First published
10 Nov 2023

J. Mater. Chem. A, 2023,11, 24970-24981

A functional electrolyte containing propyl 4-methylbenzene sulfonate (PMBS) additive to improve the cycling performance of the LiNi0.8Co0.1Mn0.1O2/graphite full cell under the low temperature of −10 °C

H. Li, J. Cai, J. Liao, Y. Li, X. Zeng, X. He, W. Fan, C. Fan, Z. Ma and J. Nan, J. Mater. Chem. A, 2023, 11, 24970 DOI: 10.1039/D3TA04535H

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