Issue 45, 2020
From the journal:

Journal of Materials Chemistry A

KFSA/glyme electrolytes for 4 V-class K-ion batteries†

Tomooki Hosaka, ORCID logo a   Tatsuo Matsuyama,a   Kei Kubota, ORCID logo ab   Ryoichi Tatara ORCID logo ab  and  Shinichi Komaba ORCID logo *ab  

* Corresponding authors

a Department of Applied Chemistry, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
E-mail: komaba@rs.tus.ac.jp

b Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryo-Ohara, Nishikyo-ku, Kyoto 615-8245, Japan

Abstract

Highly concentrated electrolytes of KN(SO2F)2 (KFSA)/diglyme and KFSA/triglyme are developed for high-voltage K-ion batteries. They demonstrate high oxidation stability up to 4.7 V vs. K/K+, which is considerably higher than that of the KFSA/monoglyme electrolyte. Moreover, these electrolytes can improve the cycling stability of high-voltage K-ion batteries.

Graphical abstract: KFSA/glyme electrolytes for 4 V-class K-ion batteries

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Article information

DOI
https://doi.org/10.1039/D0TA08851J
Article type
Communication
Submitted
08 Sep 2020
Accepted
31 Oct 2020
First published
05 Nov 2020
This article is Open Access
Creative Commons BY license

J. Mater. Chem. A, 2020,8, 23766-23771

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KFSA/glyme electrolytes for 4 V-class K-ion batteries

T. Hosaka, T. Matsuyama, K. Kubota, R. Tatara and S. Komaba, J. Mater. Chem. A, 2020, 8, 23766 DOI: 10.1039/D0TA08851J

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