Chemistry: electrical current producing apparatus – product – and – Having means to accommodate electrode expansion
Reexamination Certificate
2010-03-05
2011-12-13
Kalafut, Stephen J. (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Having means to accommodate electrode expansion
C429S469000, C429S470000
Reexamination Certificate
active
08076017
ABSTRACT:
Disclosed is a fuel cell stack which includes: a cell assembly formed of stacked unit cells, each composed of a membrane electrolyte assembly and separators which sandwich the membrane electrolyte assembly; a pair of collector plates A and B which sandwiches the cell assembly; a pair of end plates A and B which sandwiches the cell assembly and the collector plates; and an elastic member disposed between end plate A and collector plate A, wherein end plate A has a convexed portion and a concaved portion on a surface facing collector plate A, and the concaved portion of end plate A holds therein the elastic member, and a bottom surface of the concaved portion includes a second convexed portion and a second concaved portion.
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International Search Report of PCT Application No. PCT/JP2010/001576 dated Jun. 22, 2010.
Arai Kenji
Kawabata Norihiko
Kusakabe Hiroki
Matsumoto Toshihiro
Nagao Yoshiki
Culpepper Kerry
Kalafut Stephen J.
Odedra Dhiren
Panasonic Corporation
Panasonic Patent Center
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