(19)
(11) EP 2 306 577 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
27.07.2011 Bulletin 2011/30

(43) Date of publication:
06.04.2011 Bulletin 2011/14

(21) Application number: 09800176.1

(22) Date of filing: 30.06.2009
(51) International Patent Classification (IPC): 
H01M 8/24(2006.01)
H01M 8/04(2006.01)
 H01M 8/02(2006.01)
H01M 8/10(2006.01)
(86) International application number:
PCT/JP2009/003005
(87) International publication number:
WO 2010/010659 (28.01.2010 Gazette 2010/04)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

(30) Priority: 23.07.2008 JP 2008189300

(71) Applicant: Panasonic Corporation
Kadoma-shi Osaka 571-8501 (JP)

(72) Inventors:
  • KOZU Katsumi
    Chuo-ku, Osaka-shi, Osaka 540-6207 (JP)
  • KIMURA Tadao
    Chuo-ku, Osaka-shi, Osaka 540-6207 (JP)

(74) Representative: Schwabe - Sandmair - Marx 
Patentanwälte Stuntzstraße 16
81677 München
81677 München (DE)

   


(54) FUEL CELL STACK AND FUEL BATTERY USING THE SAME


(57) In a fuel cell stack, a cell stack is formed by laminating membrane electrode assemblies and a separator, and sandwiching them with a pair of end plates from the both sides in the laminating direction, and the cell stack is tightened and fastened in a laminating direction by a first plate spring. The first plate spring includes two arm sections for pressing the end plates and a connecting section connecting the arm sections so as to have a C-shaped cross-section. Space between the connecting section of the first plate spring, and membrane electrode assembly and the end plates functions as a first cooling air flow passage.