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1. (WO2018135627) ELECTROLYTE SOLUTION FOR POTASSIUM ION BATTERIES, POTASSIUM ION BATTERY, ELECTROLYTE SOLUTION FOR POTASSIUM ION CAPACITORS, AND POTASSIUM ION CAPACITOR

Pub. No.:    WO/2018/135627    International Application No.:    PCT/JP2018/001621
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Sat Jan 20 00:59:59 CET 2018
IPC: H01M 10/0568
H01G 11/06
H01G 11/60
H01G 11/62
H01M 10/054
H01M 10/0569
Applicants: TOKYO UNIVERSITY OF SCIENCE FOUNDATION
学校法人東京理科大学
Inventors: KOMABA, Shinichi
駒場 慎一
KUBOTA, Kei
久保田 圭
HOSAKA, Tomooki
保坂 知宙
Title: ELECTROLYTE SOLUTION FOR POTASSIUM ION BATTERIES, POTASSIUM ION BATTERY, ELECTROLYTE SOLUTION FOR POTASSIUM ION CAPACITORS, AND POTASSIUM ION CAPACITOR
Abstract:
Provided are: an electrolyte solution for potassium ion batteries or capacitors, which enables the achievement of a potassium ion battery or capacitor having excellent passive state formability; and a potassium ion battery or capacitor, which is provided with this electrolyte solution. An electrolyte solution for potassium ion batteries or capacitors, which contains at least one potassium salt compound selected from the group consisting of potassium bis(trifluoromethanesulfonyl)amide and potassium bis(fluorosulfonyl)amide and at least one solvent selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, pentaethylene glycol dimethyl ether, ethylene carbonate and propylene carbonate, and wherein the concentration of the potassium salt compound is from 1.5 mol/kg to 12.0 mol/kg (inclusive).