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.:
Date of Patent:
Oct. 24, 2017
Filed:
Oct. 21, 2011
Hiroshi Iden, Yokosuka, JP;
Atsushi Ohma, Yokohama, JP;
Kei Sakai, Yokohama, JP;
Kazuyuki Satou, Yokohama, JP;
Yoshitaka Ono, Yokohama, JP;
Hiroyuki Tanaka, Yokohama, JP;
Ken Akizuki, Nishitokyo, JP;
Hiroshi Iden, Yokosuka, JP;
Atsushi Ohma, Yokohama, JP;
Kei Sakai, Yokohama, JP;
Kazuyuki Satou, Yokohama, JP;
Yoshitaka Ono, Yokohama, JP;
Hiroyuki Tanaka, Yokohama, JP;
Ken Akizuki, Nishitokyo, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
Provided is an electrocatalyst for solid polymer fuel cells capable of increasing the active surface area for reactions in a catalyst component, increasing the utilization efficiency of the catalyst, and reducing the amount of expensive precious metal catalyst used. Also provided are a membrane electrode assembly that uses this electrocatalyst and a solid polymer fuel cell. An electrocatalyst for a solid polymer fuel cell is provided with a catalyst and solid proton conducting material. A liquid conductive material retention part that retains a liquid proton conducting material that connects the catalyst and solid proton conducting material is provided between the same. The surface area of the catalyst exposed within the liquid conductive material retention part is larger than the surface area of the catalyst in contact with the solid proton conducting material.