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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 10205174 B1

PDFFull Text
Date of Patent:
Feb. 12, 2019

Filed:

Aug. 26, 2014

Electrode catalyst ink composition

Applicant:

Showa Denko K.k., Tokyo, JP;

Inventors:

Tatsuya Fukuta, Tokyo, JP;

Takashi Sato, Tokyo, JP;

Masayuki Yoshimura, Tokyo, JP;

Yuji Ito, Tokyo, JP;

Assignee:

SHOWA DENKO K.K., Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Sonya M Sengupta

Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 4/90 (2006.01); B01D 53/86 (2006.01); B01J 35/02 (2006.01); H01M 8/1004 (2016.01); B01J 23/00 (2006.01); H01M 4/04 (2006.01); H01M 4/48 (2010.01); H01M 8/08 (2016.01); B44C 3/02 (2006.01); H01M 4/08 (2006.01); B44C 1/175 (2006.01);
U.S. Cl.
CPC ...
H01M 4/9016 (2013.01); B01D 53/86 (2013.01); B01J 35/02 (2013.01); H01M 4/8814 (2013.01); H01M 4/8828 (2013.01); H01M 4/8882 (2013.01); H01M 8/1004 (2013.01); B01D 53/8668 (2013.01); B44C 1/175 (2013.01); B44C 3/02 (2013.01); Y02E 60/52 (2013.01);
Abstract

An electrode catalyst ink composition which includes metal oxide-based electrode catalyst particles, an electrolyte, and a mixed liquid medium, wherein the mixed liquid medium contains 40 to 85% by mass of water; 5 to 30% by mass of an aqueous solvent (A) that has an evaporation rate of 2.0 or lower when the evaporation rate of water at 25° C. is 1, and a solubility parameter (SP value) of not less than 9; and 10 to 30% by mass of a monoalcohol (B) that has an evaporation rate of higher than 2.0 when the evaporation rate of water at 25° C. is 1, and not more than 3 carbon atoms, provided that the total amount of the mixed liquid medium is 100% by mass.

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