FUEL CELL STACK

FUEL CELL STACK

PROBLEM TO BE SOLVED: To provide a fuel cell stack having a power generating cell efficiently cooled and kept at appropriate temperature, with improved power generation efficiency. SOLUTION: In a laminate 18 of the stack, a plurality of power generation cells 16 are laminated. A plurality of cooling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OKAZAKI KOJI, HATSUYA TSUTOMU, UMENO HIROSHI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a fuel cell stack having a power generating cell efficiently cooled and kept at appropriate temperature, with improved power generation efficiency. SOLUTION: In a laminate 18 of the stack, a plurality of power generation cells 16 are laminated. A plurality of cooling air flow paths 54 through which cooling air flows are formed in a first separator 32 in the cells 16. Respective cooling air flow paths 54 have an opened cross-sectional area of 1.2 to 4 mm2, and the rate of a depth D to a width W of a groove part of each flow path 54 is set to ≥1.2, i.e., ''D/W≥1.2''. COPYRIGHT: (C)2005,JPO&NCIPI