Silicon carbide electrolyte retaining matrix for fuel cells

Details Silicon carbide electrolyte retaining matrix for fuel cells Silicon carbide electrolyte retaining matrix for fuel cells

1975-09-02

1977-04-12

Mack, John H.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

H01M 802

Patent

active

040176649

ABSTRACT:
In a fuel cell utilizing an acid electrolyte, such as H.sub.3 PO.sub.4, the electrolyte retaining matrix is made from silicon carbide. The silicon carbide has been found to be virtually inert to H.sub.3 PO.sub.4 at fuel cell operating temperatures and provides all the other necessary and desirable matrix properties. This matrix is expected to have a life of at least 40,000 hours under normal fuel cell operating conditions.

REFERENCES:
patent: 3265536 (1966-08-01), Miller et al.
patent: 3575718 (1971-04-01), Adlhart et al.
patent: 3875270 (1975-04-01), Haefner et al.

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