Methods of making oxygen distribution members for fuel cells

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

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Details

429 39, 427115, 264105, H01M 214, H01M 200

Patent

active

054459044

ABSTRACT:
A water-pervious oxygen distribution member for a hydrogen fuel cell is made by a method comprising chemical surface treatment of a carbonaceous member to impart hydrophilicity while retaining mechanical strength and electrical properties. The oxygen-distribution member produced provides unobstructed passageways for oxygen to access the cathode while permitting water to egress through porosity of the member.

REFERENCES:
patent: 4175165 (1979-11-01), Adlhart
patent: 4185145 (1980-01-01), Breault

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