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.

Inactive Publication Date: 2009-01-21
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the number of stacked single cells becomes large, the temperature distribution tending to be generated in the stacking direction and the discharge characteristics of water generated by the electrochemical reaction are deteriorated, thereby failing to ensure the required power generation performance

Method used

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

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no. 1 example

[0099]According to the first embodiment, the battery assembly 10 is constituted as an integral body of the first and second unit cells 14 and 16, and in addition, at least part of the oxidizing gas passage 46 provided in the first unit cell 14 is connected in series through the oxidizing gas intermediate connection hole 40 to at least part of the oxidizing gas channel 58 provided in the second unit cell 16; and at least part of the fuel gas channel 56 provided in the first unit cell 14 is connected in series to the channel 58 provided in the second unit cell 16 through the fuel gas intermediate connection hole 38 At least part of the fuel gas passage 52 in. Therefore, the oxidizing gas of the flow required for the entire reaction in the first and second unit cells 14 and 16 is supplied to the oxidizing gas passage 46 on the inlet side; A fuel gas at a flow rate necessary for the reaction is supplied to the fuel gas passage 56 on the inlet side. In other words, the oxidizing g...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/24H01M8/02H01M8/04H01M8/10
CPCH01M8/0267H01M8/0247Y02E60/50H01M8/04074H01M8/04029H01M8/241H01M8/2483H01M8/2457H01M8/0263H01M8/0258H01M8/02H01M8/24
Inventor 杉浦诚治割石义典杉田成利圆城寺直之
Owner HONDA MOTOR CO LTD
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