Enabling electrochemical compatibility of non-flammable phosphate electrolytes for lithium-ion batteries by tuning their molar ratios of salt to solvent

Xingwei Liu; Xiaohui Shen; Faping Zhong; Xiangming Feng; Weihua Chen; Xinping Ai; Hanxi Yang; Yuliang Cao

doi:10.1039/D0CC02940H

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Enabling electrochemical compatibility of non-flammable phosphate electrolytes for lithium-ion batteries by tuning their molar ratios of salt to solvent†

Xingwei Liu,‡^a Xiaohui Shen,‡^a Faping Zhong,*^b Xiangming Feng,^c Weihua Chen,

^c Xinping Ai,

^a Hanxi Yang^a and Yuliang Cao

*^a

Author affiliations

* Corresponding authors

^a College of Chemistry and Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials of Ministry of Education, Wuhan University, Wuhan 430072, China
E-mail: ylcao@whu.edu.cn

^b National Engineering Research Center of Advanced Energy Storage Materials, Changsha, China
E-mail: zfp@corun.com

^c College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China

Abstract

We develop a new type of electrolyte with a high molar ratio (MR) of salt to solvent but a low molar concentration by adjusting the molar mass of the solvent. The present 1 : 2 LiFSI–triamyl phosphate electrolyte exhibits a low molar concentration of only 1.35 M along with excellent electrochemical stability against the graphite anode.

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Article information

DOI: https://doi.org/10.1039/D0CC02940H
Article type: Communication
Submitted: 23 Apr 2020
Accepted: 01 May 2020
First published: 01 May 2020

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Chem. Commun., 2020,56, 6559-6562

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Enabling electrochemical compatibility of non-flammable phosphate electrolytes for lithium-ion batteries by tuning their molar ratios of salt to solvent

X. Liu, X. Shen, F. Zhong, X. Feng, W. Chen, X. Ai, H. Yang and Y. Cao, Chem. Commun., 2020, 56, 6559 DOI: 10.1039/D0CC02940H

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Chemical Communications

Enabling electrochemical compatibility of non-flammable phosphate electrolytes for lithium-ion batteries by tuning their molar ratios of salt to solvent†

Abstract

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Enabling electrochemical compatibility of non-flammable phosphate electrolytes for lithium-ion batteries by tuning their molar ratios of salt to solvent

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