Cathode-to-cathode fuel cell stacks

Details Cathode-to-cathode fuel cell stacks Cathode-to-cathode fuel cell stacks

2006-07-25

2006-07-25

Barr, Michael (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000

Reexamination Certificate

active

07081313

ABSTRACT:
A plurality of fuel cell stacks (8, 8a, 9, 9a) have their cathode ends (11, 12) contiguous with either a common current collector (15a–15d) or respective current collectors (15a, 15b) which may be separated by electrical isolation (27a, 27b). The cathode-to-cathode relationship protects the cathode of each of the stacks from cold ambient environments, thereby permitting improved cold starts and mitigation of performance loss as a result of cold starts as well as freeze/thaw cycles. Heaters (30, 30a–30d) may be provided in current collectors, or in or between electrical isolation. Four stacks may share one current collector, or each may have its own current collector.

REFERENCES:
patent: 2001/0036568 (2001-11-01), Farkash et al.
patent: 2005/0170235 (2005-08-01), Hu et al.

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