Separator for flat-type polymer electrolyte fuel cells

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together

Reexamination Certificate

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Details

C429S400000, C429S457000

Reexamination Certificate

active

08039168

ABSTRACT:
A separator for flat-type polymer electrolyte fuel cells comprises a fuel-feed-side separator and an oxygen-feed-side separator, each comprising a collector portion in which n unit conductive substrates (n is an integer of 2 or more), each having a plurality of through-holes, are arrayed in flat configuration via gaps, and a pair of insulating frames which have n openings in alignment with an array position of the unit conductive substrates and are integrated in such a way as to hold the collector portion between them. The back-to-back (n−1) unit conductive substrates of the n unit conductive substrates in one of both separators, as counted from the end of its array direction, and the 2ndto nthunit conductive substrates of the n unit conductive substrates in another separator, as counted from the end of its array direction are successively joined together by means of (n−1) connecting hinges.

REFERENCES:
patent: 7316856 (2008-01-01), Maeda et al.
patent: 2002/0146610 (2002-10-01), Hayashi et al.
patent: 2003-115312 (2003-04-01), None
patent: 2005-100880 (2005-04-01), None
patent: 2005-222877 (2005-08-01), None
patent: 03/096455 (2003-11-01), None
patent: 03/098726 (2003-11-01), None
U.S. Appl. No. 11/695,196, filed Apr. 2, 2007, Uchida, et al.
U.S. Appl. No. 11/697,454, filed Apr. 6, 2007, Yagi, et al.
U.S. Appl. No. 11/948,212, filed Nov. 30, 2007, Maeda, et al.
U.S. Appl. No. 11/793,595, filed Jun. 21, 2007, Yagi, et al.

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