Solid polymer electrolyte fuel cell assembly, fuel cell stank, and method of supplying reaction gas ni fuel cell

A solid polymer, fuel cell technology, applied in solid electrolyte fuel cells, fuel cell grouping, fuel cell components, etc., can solve problems such as increasing the number of single cells, inability to ensure power generation performance, and deterioration of temperature distribution and discharge characteristics.
CN100454648CInactive Publication Date: 2009-01-21HONDA MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HONDA MOTOR CO LTD
Publication Date
2009-01-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cell assembly (10) includes a first unit cell (14) and a second unit cell (16) which are stacked to each other. The first unit cell (14) has a first unified body (18), and the second unit cell (16) has a second unified body (20). A plurality of oxidizing gas passages (46, 58) and a plurality of fuel gas passages (56, 52) are provided in the cell assembly (10). The oxidizing gas passages (46)in the first unit cell (14) and the oxidizing gas passages (58) in the second unit cell (16) are communicated in series to each other. The fuel gas passages (56) in the first unit cell (14) and the fuel gas passages (52) in the second unit cell (16) are communicated in series to each other.
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Description

technical field

[0001] The present invention relates to a solid polymer electrolyte fuel cell assembly comprising a plurality of unit cells integrally stacked on each other, wherein each unit cell has a single cell including an anode, a cathode and a solid polymer electrolyte membrane between the anode and the cathode. Furthermore, the present invention relates to a fuel cell stack including a stack of solid polymer electrolyte fuel cell assemblies, and a method of supplying reactant gases to the fuel cells. Background technique

[0002] In general, a solid polymer electrolyte fuel cell (PEFC) includes a single cell (single power generation element) constituted by opposingly disposed on both sides of an electrolyte membrane of a polymer ion exchange membrane (cation exchange membrane). An anode and a cathode made of carbon, thus forming a cell (membrane electrode assembly); the cell is held between separators (bipolar plates). A solid polymer electrolyte fuel cell is genera...

Claims

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