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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.

Patent No.:

US 9799906 B1

PDFFull Text
Date of Patent:
Oct. 24, 2017

Filed:

Dec. 27, 2012

Redox flow secondary battery and electrolyte membrane for redox flow secondary battery

Applicants:

Asahi Kasei E-materials Corporation, Tokyo, JP;

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Naoto Miyake, Tokyo, JP;

Kiyoaki Moriuchi, Osaka, JP;

Michiru Kubata, Osaka, JP;

Assignees:

ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Helen O Conley

Int. Cl.
CPC ...
H01M 8/102 (2016.01); C08F 14/18 (2006.01); C08F 214/18 (2006.01); C08L 71/12 (2006.01); C08L 81/02 (2006.01); H01M 8/18 (2006.01); H01M 8/02 (2016.01); C08J 5/22 (2006.01); H01M 8/1018 (2016.01); H01M 8/1039 (2016.01); H01M 8/1032 (2016.01); H01M 8/20 (2006.01); C08G 65/00 (2006.01);
U.S. Cl.
CPC ...
H01M 8/102 (2013.01); C08F 14/18 (2013.01); C08F 214/18 (2013.01); C08G 65/007 (2013.01); C08J 5/2237 (2013.01); C08L 71/12 (2013.01); C08L 81/02 (2013.01); H01M 8/02 (2013.01); H01M 8/1018 (2013.01); H01M 8/1032 (2013.01); H01M 8/1039 (2013.01); H01M 8/18 (2013.01); H01M 8/188 (2013.01); H01M 8/20 (2013.01); C08J 2327/12 (2013.01); H01M 2300/0082 (2013.01); Y02E 60/528 (2013.01);
Abstract

An object of the present invention is to provide a redox flow secondary battery being low in the electric resistance and excellent in the current efficiency as well, and further having the durability. The present invention relates to an electrolyte membrane for a redox flow secondary battery, the electrolyte membrane containing an ion-exchange resin composition containing a fluorine-based polyelectrolyte polymer, and having an ion cluster diameter of 1.00 to 2.95 nm as measured in water at 25° C. by a small angle X-ray method, and to a redox flow secondary battery using the electrolyte membrane.

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