Solid polymer type fuel cell and method for manufacturing the sa

Details Solid polymer type fuel cell and method for manufacturing the sa Solid polymer type fuel cell and method for manufacturing the sa

1998-04-08

2000-05-09

Wong, Edna

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 42, 427115, 296235, H01M 810, H01M 208, H01M 600, B05D 512

Patent

active

060601876

ABSTRACT:
An electrode of solid polymer electrolyte fuel cells is produced by a step of preparing a mixed liquid containing an organic solvent, a noble metal catalyst-supporting carbon powder and a colloid of a solid polymer electrolyte having a particle size of from 1 nm to less than 400 nm, the colloid being adsorbed to the carbon powder and a step of forming an electrode by coating the mixed liquid on one side of a gas-diffusible layer. The solid polymer electrolyte is effectively adsorbed to the surface of the catalyst and thus a wide reaction area can be secured. Furthermore, thickness of the solid polymer electrolyte layer can be controlled to one in which hydrogen and oxygen can be easily diffused.

REFERENCES:
patent: 5211984 (1993-05-01), Wilson
patent: 5723173 (1998-03-01), Fukuoka et al.
Hawley's Condensed Chemical Dictionary, 11th ed., pp. 299-300, 1987. no month available.
Concise Chemical Dictionary, p. 149, 1984. no month available.
Minoru Inaba, et al., "Hydrogen oxidation on partially immersed Nafion.RTM.-coated electrodes," Journal of Electroanalytical Chemistry 417 (1996), pp. 105-111. no month available.

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