Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
燃料電池
Document Type and Number:
Japanese Patent JP4967220
Kind Code:
B2
Abstract:
A fuel cell comprises a cathode catalyst layer and an anode catalyst layer disposed on each surface of an electrolyte membrane, an oxidant gas passage facing the cathode catalyst layer, and a fuel gas passage facing the anode catalyst layer. The cathode catalyst layer contains a metal catalyst. In a region (A), in which the differential electric potential between the cathode catalyst layer and the electrolyte membrane is larger than in another region, the metal catalyst content of the cathode catalyst layer or the specific surface area of the metal catalyst in the form of minute particles is increased, and thus a deterioration in electric power generation efficiency caused by melting of the metal catalyst due to the large differential electric potential is prevented.

More Like This:
JP6904611Rechargeable electrochemical device for generating electrical energy
JP2008112616CATALYST LAYER FOR FUEL CELL, CATALYST LAYER TRANSFER SHEET FOR FUEL CELL, GAS DIFFUSION ELECTRODE FOR FUEL CELL, MANUFACTURING METHOD OF MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL, AND DIRECT METHANOL FUEL CELL USING THEM
JP2007026873FUEL CELL
Inventors:
Atsushi Oma
Yoshitaka Ono
Ryoichi Shimoi
Kazuya Tajiri
Application Number:
JP2004101373A
Publication Date:
July 04, 2012
Filing Date:
March 30, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M4/86; H01M4/88; H01M4/90; H01M8/02; H01M8/10; H01M4/92; H01M8/04
Domestic Patent References:
JP2005259650A
JP7085874A
JP2003518724A
Attorney, Agent or Firm:
Masaki Goto
Yoshio Matsuda



 
Previous Patent: JPS4967219

Next Patent: JPS4967221