The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 09, 2017

Filed:

Aug. 07, 2013
Applicant:

Sumitomo Electric Industries, Ltd., Osaka-shi, JP;

Inventors:

Ryojun Sekine, Osaka, JP;

Yongrong Dong, Osaka, JP;

Michiru Kubata, Osaka, JP;

Hirokazu Kaku, Osaka, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/18 (2006.01); H01M 8/20 (2006.01);
U.S. Cl.
CPC ...
H01M 8/188 (2013.01); H01M 8/20 (2013.01); H01M 2220/10 (2013.01); H01M 2250/10 (2013.01); H01M 2300/0002 (2013.01); Y02B 90/14 (2013.01); Y02E 60/528 (2013.01);
Abstract

Provided is an electrolyte for a redox flow battery, the electrolyte allowing suppression of generation of precipitate during a battery reaction. In the electrolyte for a redox flow battery, the total concentration of impurity element ions contributing to generation of precipitate during a battery reaction is 220 mass ppm or less. In a case where the impurity element ions contributing to generation of precipitate include metal element ions, the total concentration of the metal element ions may be 195 mass ppm or less. In a case where the impurity element ions contributing to generation of precipitate include non-metal element ions, the total concentration of the non-metal element ions may be 21 mass ppm or less.


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