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Issue 55, 2021

Effect of fluoroethylene carbonate on the transport property of electrolytes towards Ni-rich Li-ion batteries with high safety

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Abstract

Transport phenomena and the solvation structure of lithium ions (Li+) and hexafluorophosphate anions (PF6) in electrolytes with different fluoroethylene carbonate (FEC) concentrations as well as the electrochemical performance and safety of Ni-rich Li-ion battery cells at the 18650 cylindrical cell level are investigated. We have found that the electrolyte with an optimized FEC concentration (25% v/v) can effectively enhance the transport property in terms of the Li+ transference number and contact ion pair (CIP) ratio leading to high performance and safety of practical 18650 cylindrical LIBs.

Graphical abstract: Effect of fluoroethylene carbonate on the transport property of electrolytes towards Ni-rich Li-ion batteries with high safety

Supplementary files

Article information


Submitted
21 Apr 2021
Accepted
27 May 2021
First published
28 May 2021

Chem. Commun., 2021,57, 6732-6735
Article type
Communication

Effect of fluoroethylene carbonate on the transport property of electrolytes towards Ni-rich Li-ion batteries with high safety

S. Duangdangchote, N. Phattharasupakun, P. Chomkhuntod, P. Chiochan, S. Sarawutanukul, C. Tomon, N. Joraleechanchai and M. Sawangphruk, Chem. Commun., 2021, 57, 6732 DOI: 10.1039/D1CC02120F

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