Title:
FUEL CELL CATHODE, METHOD FOR PRODUCING SAME AND SOLID POLYMER FUEL CELL EQUIPPED WITH FUEL CELL CATHODE
Document Type and Number:
WIPO Patent Application WO/2020/235322
Kind Code:
A1
Abstract:
A cathode for a polymer solid electrolyte fuel cell, wherein the effective utilization rate of platinum is improved as a result of a greater number of catalytic metal particles having reaction sites at which a catalyst, an ionomer and oxygen meet during catalysis, which are known as three-phase interfaces. Furthermore, even when overvoltage occurs as a result of the start/stop cycle and the travel load fluctuation cycle of a vehicle, it is possible to sustainably maintain the three-phase interface reaction sites. This cathode for a fuel cell has a catalyst layer comprising a catalyst support conductor and a polymer electrolyte, the surface of the catalyst support conductor is covered by a conductive complex metal oxide having projections, and the conductive complex metal oxide supports the catalytic metal particles.
Inventors:
KITAMURA TAKEAKI (JP)
Application Number:
PCT/JP2020/018212
Publication Date:
November 26, 2020
Filing Date:
April 30, 2020
Export Citation:
Assignee:
ACR CO LTD (JP)
International Classes:
B01J35/08; B01J23/847; B01J23/89; B01J37/02; B01J37/16; H01M4/86; H01M8/10
Foreign References:
| JP2008091264A | 2008-04-17 | |||
| JP2017157353A | 2017-09-07 | |||
| JP2012043612A | 2012-03-01 | |||
| JP2012049075A | 2012-03-08 |
Attorney, Agent or Firm:
TAKINO, Fumio et al. (JP)
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