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:
Dec. 28, 2010
Filed:
Jul. 14, 2005
Kaoru Fukuda, Wako, JP;
Ryoichiro Takahashi, Wako, JP;
Junji Matsuo, Wako, JP;
Tomoyuki Tada, Hiratsuka, JP;
Masahiko Inoue, Hiratsuka, JP;
Koichi Matsutani, Hiratsuka, JP;
Kaoru Fukuda, Wako, JP;
Ryoichiro Takahashi, Wako, JP;
Junji Matsuo, Wako, JP;
Tomoyuki Tada, Hiratsuka, JP;
Masahiko Inoue, Hiratsuka, JP;
Koichi Matsutani, Hiratsuka, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Tanaka Kikinzoku Kogyo K.K., Tokyo, JP;
Abstract
A solid polymer electrolyte fuel cell comprises: a plurality of electrode structures comprising an anode and a cathode, and polymer electrolyte membrane held between the anode and the cathode, and a plurality of separators for holding the respective electrode structures, with a fuel gas passage for supplying and discharging fuel gas containing hydrogen on a surface opposing the anode; and an oxidant gas passage for supplying and discharging oxidant gas on a surface opposing the cathode. The catalyst layer of the anode comprises a mixture of an ion conductive material, a platinum powder and/or platinum alloy powder and a carbon, the platinum powder and/or platinum alloy powder and carbon substantially exist independently from each other, and the catalyst layer of the cathode comprises a metal support mixture in which the ion conductive material and the electro-conductive material having the supported catalyst material are mixed.