Porous gas diffusion electrode and method of producing the same

Details Porous gas diffusion electrode and method of producing the same Porous gas diffusion electrode and method of producing the same

1984-05-07

1985-11-26

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204290R, 427 58, 429 36, C25B 1103, C25B 1104, B05D 512, H01M 208

Patent

active

045553246

ABSTRACT:
A porous gas diffusion electrode for use in an air-metal cell or a hydrogen-air (oxygen) cell comprising an electroconductive porous substrate, which has itself on one surface thereof reaction gas feed channels or is to be used with one surface in contact with reaction gas feed channels during use, and which comprises gas impermeable and electrically insulating seals formed of a tetrafluoroethylene-perfluoroalkyl vinyl ether compolymer provided on the substrate at least at both end portions parallel to said reaction gas feed channels, is capable of positively shielding the gas streams at the end portions parallel to the reaction gas feed channels and maintaining electrical insulation.
Such a porous gas diffusion electrode can be prepared by a method comprising applying a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer on the substrate at least at the end portions parallel to the reaction gas feed channels and then subjecting the substrate coated with the copolymer to hot pressure bonding by means of a pressure bonding tool made of a metal previously coated with a fluoride oil to form gas impermeable and electrically insulating seals comprising said copolymer.

REFERENCES:
patent: 4045325 (1977-08-01), Schwickart et al.
patent: 4159367 (1979-06-01), Berchielli et al.
patent: 4279970 (1981-07-01), Breault et al.
patent: 4386987 (1983-06-01), Covitch et al.
patent: 4435267 (1984-03-01), Batzold et al.

Affiliated with

Also associated with

Rating

Porous gas diffusion electrode and method of producing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porous gas diffusion electrode and method of producing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous gas diffusion electrode and method of producing the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-268667