Current collector for a fuel cell and method of making the same

Details Current collector for a fuel cell and method of making the same Current collector for a fuel cell and method of making the same

1998-08-19

2000-09-12

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 30, 429 33, 429 38, 429 39, 429 41, 429 44, 429 46, 429 16, H01M 466

Patent

active

061175803

ABSTRACT:
A molten carbonate fuel cell is constructed of plural stacked individual cell units, that each respectively include a porous, electrolyte saturated matrix (3) sandwiched between a cathode (2) and an anode (4), and current collectors (5, 6) respectively arranged between the anode (4) and a first separator plate (7), and between the cathode (2) and a second separator plate (8). Especially the cathode current collector (6) includes a stainless steel core (16) that is coated on at least one surface with an aluminum-containing layer (14). Preferably both surfaces of the stainless steel core (16) are coated with aluminum-containing layers (14A, 14B), except for a contact area (12) at which the stainless steel core (16) directly contacts the cathode (2). The aluminum-containing layer (14) prevents or minimizes the occurrence of an oxidation reaction that would otherwise lead to significant loss of the electrolyte.

REFERENCES:
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patent: 5595832 (1997-01-01), Tomimatsu et al.
patent: 5698337 (1997-12-01), Nitschke et al.
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patent: 5795665 (1998-08-01), Allen
patent: 5811202 (1998-09-01), Petraglia
patent: 5989740 (1999-11-01), Tomimatsu et al.

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