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

Tomooki Hosaka, Tatsuo Matsuyama, Kei Kubota, Ryoichi Tatara, Shinichi Komaba

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)23766-23771
Number of pages6
JournalJournal of Materials Chemistry A
Issue number45
Publication statusPublished - 7 Dec 2020


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