Highly concentrated electrolyte solutions for 4 V class potassium-ion batteries.

Chem Commun (Camb)

Department of Applied Chemistry, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan.

Published: July 2018

Stable cycling of a 4 V-class potassium-ion battery is demonstrated with a highly concentrated potassium bis(fluorosulfonyl)amide 1,2-dimethoxyethane solution as an electrolyte. Not only graphite and K2Mn[Fe(CN)6] half cells but also graphite//K2Mn[Fe(CN)6] full cells filled with the electrolyte exhibit higher coulombic efficiency and better cyclability than those of KPF6/carbonate ester solutions.

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Source
http://dx.doi.org/10.1039/c8cc04433cDOI Listing

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