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Title:
FUEL CELL STACK
Document Type and Number:
WIPO Patent Application WO/2013/136764
Kind Code:
A1
Abstract:
A fuel cell stack (10) includes cell units (A1) stacked on one another and each including a membrane electrode assembly (30) and two separators (40, 41) defining gas passages on both sides of the membrane electrode assembly (30), a cooling fluid passage (S1) for flowing a cooling fluid provided between the separators (40, 41) of each adjacent two of the cell units (A1), and a displacement absorber (B1-B5) provided in the cooling fluid passage (S1). The displacement absorber (B1-B5) includes elastic protrusions (50) provided in an array and configured to elastically absorb a displacement of the cell units (A1) in a stack direction, and flow-spread preventing protrusions (55, 55A, 55B) provided in an array and configured to prevent the cooling fluid from flowing out of an active area (a).

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Inventors:
IRITSUKI KEITA (JP)
FUKUYAMA YOSUKE (JP)
Application Number:
PCT/JP2013/001577
Publication Date:
September 19, 2013
Filing Date:
March 11, 2013
Export Citation:
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Assignee:
NISSAN MOTOR (JP)
International Classes:
H01M8/02
Foreign References:
US20090136805A12009-05-28
GB2336937A1999-11-03
JP2005158670A2005-06-16
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (2-8 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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