Title:
FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2012/132667
Kind Code:
A1
Abstract:
In a conventional fuel cell, bending stress due to differences in pressure on the anode side and cathode side has been concentrated in the end parts of membrane electrode structures, making for difficulty in increasing the durability of the membrane electrode structures.
A fuel cell (C) is provided with a membrane electrode structure (2) having a frame (1) and two separators (3A, 3B) that sandwich the same, and gas seal members (11, 12) are provided respectively at the peripheral edges of diffuser parts (D1, D2) formed between the frame (1) and the separators (A, 3B). By offsetting the end part position of the gas seal member (11) on the diffuser part (D1) side in the diffuser part (D1) on the cathode side and the end part position of the gas seal member (12) on the diffuser part (D2) side in the diffuser part (D2) on the anode side in the inward and outward directions for the diffuser parts (D1, D2), the parts in which stress is generated by the difference in gas pressure on the cathode side and anode side are dispersed, and the durability of the frame and membrane electrode structure is improved.
Inventors:
OKU TAKANORI
KAGEYAMA KAZUHIRO
ABE MITSUTAKA
KAGEYAMA KAZUHIRO
ABE MITSUTAKA
Application Number:
PCT/JP2012/054386
Publication Date:
October 04, 2012
Filing Date:
February 23, 2012
Export Citation:
Assignee:
NISSAN MOTOR (JP)
OKU TAKANORI
KAGEYAMA KAZUHIRO
ABE MITSUTAKA
OKU TAKANORI
KAGEYAMA KAZUHIRO
ABE MITSUTAKA
International Classes:
H01M8/02; H01M8/10
Foreign References:
| JP2007328969A | 2007-12-20 | |||
| JP2005158424A | 2005-06-16 | |||
| JP2002231264A | 2002-08-16 | |||
| JP2002237317A | 2002-08-23 | |||
| JP2005166508A | 2005-06-23 | |||
| JP2010108852A | 2010-05-13 |
Other References:
See also references of EP 2693546A4
Attorney, Agent or Firm:
MATOBA, Motonori (JP)
Motonori Matoba (JP)
Motonori Matoba (JP)
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Claims: