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:
Feb. 28, 2006
Filed:
Sep. 25, 2002
Yoshihiro Hori, Ikoma, JP;
Takeshi Yonamine, Suita, JP;
Makoto Uchida, Hirakata, JP;
Osamu Sakai, Neyagawa, JP;
Yoshihiro Hori, Ikoma, JP;
Takeshi Yonamine, Suita, JP;
Makoto Uchida, Hirakata, JP;
Osamu Sakai, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an electrode for a polymer electrolyte fuel cell comprising a high-performance electrode catalyst particle which is sufficiently coated with a hydrogen ion conductive polymer electrolyte and has a water repellent material suitably supplied thereto for water management. The method of producing the electrode in accordance with the present invention comprises the steps of spraying a solution or dispersion of a hydrogen ion conductive polymer electrolyte into a dry atmosphere in which a catalyst particle comprising an electrically conductive carbon powder carrying a platinum group metal catalyst is flowing, to coat the catalyst particle with the polymer electrolyte, and then spraying a solution or dispersion of a water repellent material to the catalyst particle to attach the water repellent material to the catalyst particle.