Title:
膜電極接合体および燃料電池
Document Type and Number:
Japanese Patent JP5597281
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel cell that includes an anode catalyst layer containing an alloy catalyst of a noble metal such as platinum, and ruthenium, and includes a cathode suffering very little degradation caused by migration of ruthenium in an electrolyte membrane to the cathode.SOLUTION: A fuel cell 10 includes a flat membrane electrode assembly 50, and a separator 34 and a separator 36 are provided on both sides of the membrane electrode assembly 50. The membrane electrode assembly 50 includes a solid polymer electrolyte membrane 20, an anode 22, and a cathode 24. The anode 22 includes a laminate composed of a first catalyst layer 26, a second catalyst layer 27, and a gas diffusion layer 28. The first catalyst layer 26 contains a first ion conductor (an ion exchange resin), and carbon particles supporting platinum-palladium. The second catalyst layer 27 contains a second ion conductor, and carbon particles supporting a second alloy catalyst of a noble metal and a metal that has an ionization tendency greater than that of ruthenium.
Inventors:
Takashi Matsuoka
Application Number:
JP2013108291A
Publication Date:
October 01, 2014
Filing Date:
May 22, 2013
Export Citation:
Assignee:
JX day ore Nippon Oil energy incorporated company
International Classes:
H01M4/90; H01M4/86; H01M4/92; H01M8/02; H01M8/10
Attorney, Agent or Firm:
Sakaki Morishita