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:
Mar. 20, 2007
Filed:
Dec. 22, 2004
Applicants:
Hideo Daimon, Ibaraki, JP;
Yukiko Yamamoto, Ibaraki, JP;
Inventors:
Hideo Daimon, Ibaraki, JP;
Yukiko Yamamoto, Ibaraki, JP;
Assignee:
Hitachi Maxell, Ltd., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/86 (2006.01); H01M 4/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel cell has an anode, a cathode, and a polymer electrolyte membrane placed between the anode and the cathode. The anode includes a catalyst which is composed of binary or ternary particulates deposited on a carbon support. The particulate is represented by a general formula: Pt—P, wherein Ru is optionally present. The content of P is in a range of 2 mol % to 50 mol % based on the total moles of Pt or Pt—Ru. The diameter of the catalyst particulates is in range from 1 to 3 nm.