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1. (WO2014203408) ELECTROLYTE FOR REDOX FLOW BATTERY AND REDOX FLOW BATTERY

Pub. No.:    WO/2014/203408    International Application No.:    PCT/JP2013/071425
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Thu Aug 08 01:59:59 CEST 2013
IPC: H01M 8/18
H01M 8/02
Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD.
住友電気工業株式会社
Inventors: DONG, Yongrong
董 雍容
SEKINE, Ryojun
關根 良潤
KAKU, Hirokazu
加來 宏一
KUBATA, Michiru
久畑 満
Title: ELECTROLYTE FOR REDOX FLOW BATTERY AND REDOX FLOW BATTERY
Abstract:
Provided are: an electrolyte for redox flow batteries, capable of suppressing the generation of precipitates and hydrogen during battery reactions; and a redox flow battery comprising this electrolyte. The electrolyte for redox flow batteries has a total concentration of impurity element ions involved in the generation of precipitates during battery reactions of no more than 220 ppm by mass and a total concentration of platinum group element ions of no more than 4.5 ppm by mass. When the impurity element ions involved in the generation of precipitates include metal element ions, the total concentration of said metal element ions is no more than 195 ppm by mass.