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:
Apr. 28, 2020

Filed:

Dec. 09, 2016
Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventors:

Mizuki Yamamoto, Osaka, JP;

Koso Matsuda, Osaka, JP;

Takeshi Nakano, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2016.01); C08F 261/04 (2006.01); H01B 1/06 (2006.01); C08J 9/42 (2006.01); C08J 5/22 (2006.01); H01M 8/1044 (2016.01); H01M 8/1058 (2016.01); H01M 8/1023 (2016.01); H01M 8/1088 (2016.01); H01M 8/1004 (2016.01); H01M 8/103 (2016.01); H01M 8/1072 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/1044 (2013.01); C08F 261/04 (2013.01); C08J 5/22 (2013.01); C08J 5/2231 (2013.01); C08J 9/42 (2013.01); H01B 1/06 (2013.01); H01M 8/103 (2013.01); H01M 8/1004 (2013.01); H01M 8/1023 (2013.01); H01M 8/1058 (2013.01); H01M 8/1072 (2013.01); H01M 8/1088 (2013.01); C08J 2323/06 (2013.01); C08J 2451/06 (2013.01); H01M 2008/1095 (2013.01); H01M 2300/0082 (2013.01); Y02P 70/56 (2015.11);
Abstract

The electrolyte membrane of the present disclosure includes a phase A forming a matrix phase, and a phase B. The phase B is continuous from a first principal surface of the electrolyte membrane to a second principal surface of the electrolyte membrane opposite to the first principal surface. The phase B includes a graft polymer having a main chain and a graft chain. The graft chain has a functional group having anion-exchange ability. The main chain preferably has no functional group having anion-exchange ability. The electrolyte membrane of the present disclosure can reliably maintain the function as a separation membrane even when decomposition reaction by a peroxide occurs.


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