Title:
FUEL CELL REACTION LAYER PRODUCTION METHOD AND CATALYST PASTE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/125716
Kind Code:
A1
Abstract:
Proposed is a novel production method for a fuel cell reaction layer having a structure in which a catalyst is enclosed in a polyelectrolyte with a hydrophilic region therebetween (PPF structure). Said production method strengthens resistance to environmental change. The fuel cell reaction layer production process is provided with a catalyst, which is formed by supporting catalytic metal particles on a carrier, and an electrolyte phase, which surrounds the catalyst with a hydrophilic region therebetween. The disclosed method includes a degassing step in which the catalyst is dispersed in water and degassed and an electrolyte addition step in which an electrolyte is added to the aqueous catalyst dispersion after degassing. Before the degassing step, a pulverising step, where the catalyst is ground in water, is also included.
Inventors:
YAMAMOTO TAIZO (JP)
Application Number:
PCT/JP2011/057975
Publication Date:
October 13, 2011
Filing Date:
March 30, 2011
Export Citation:
Assignee:
EQUOS RESEARCH KK (JP)
YAMAMOTO TAIZO (JP)
YAMAMOTO TAIZO (JP)
International Classes:
H01M4/88; H01M4/86
Foreign References:
| JP2006286330A | 2006-10-19 | |||
| JP2008071617A | 2008-03-27 | |||
| JP2006286580A | 2006-10-19 | |||
| JP2005050734A | 2005-02-24 | |||
| JP2006140062A | 2006-06-01 |
Attorney, Agent or Firm:
KONISHI, Tomimasa (JP)
Konishi Tomu -- elegant (JP)
Konishi Tomu -- elegant (JP)
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Claims: