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Fuel cell, method for manufacturing fuel cell, and unit cell assembly

A single battery and fuel cell technology, applied to fuel cell parts, fuel cells, solid electrolyte fuel cells, etc., can solve problems that cannot be said to be easy, and achieve the effects of suppressing deformation, improving maintainability, and being easy to manufacture

Inactive Publication Date: 2009-09-23
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned prior art, it cannot be said that the fuel cell stack is easy to assemble and disassemble.

Method used

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  • Fuel cell, method for manufacturing fuel cell, and unit cell assembly
  • Fuel cell, method for manufacturing fuel cell, and unit cell assembly
  • Fuel cell, method for manufacturing fuel cell, and unit cell assembly

Examples

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Embodiment Construction

[0042] Hereinafter, a fuel cell, a fuel cell manufacturing method, and a cell module according to the present invention will be described based on examples with reference to the drawings.

[0043] A. Example:

[0044] Composition of fuel cells

[0045] A schematic configuration of a fuel cell according to an embodiment of the present invention will be described. figure 1 and figure 2 It is an explanatory diagram showing the configuration of the fuel cell in the example. image 3 It is a flowchart showing the manufacturing steps of the fuel cell in the example.

[0046] Such as figure 1 and figure 2 As shown, the fuel cell 100 has a structure in which a plurality of unit cell assemblies 200 are stacked (so-called stack structure). Such as image 3 As shown, the fuel cell 100 is manufactured through the following steps: stacking a predetermined number of unit cell assemblies 200 (step S102), and applying a predetermined fastening force in the stacking direction to tighten...

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PUM

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Abstract

Disclosed is a method for manufacturing a fuel cell wherein unit cell constituting members are stacked with a separator between each two of them. This method for manufacturing a fuel cell comprises a step for arranging a unit cell constituting member on a first region of one side of the separator, and another step for forming a sealing member composed of an elastic material so that the sealing member is bonded or closely adhered to a second region of the one side of the separator including the first region and integrated with an end portion of the unit cell constituting member.

Description

technical field [0001] The invention relates to a fuel cell, a manufacturing method of the fuel cell and a single cell assembly. Background technique [0002] A fuel cell such as a solid polymer fuel cell performs electricity by supplying reaction gases (a fuel gas containing hydrogen and an oxidizing gas containing oxygen) to two opposing electrodes (a fuel electrode and an oxygen electrode) sandwiching an electrolyte membrane. A chemical reaction whereby the chemical energy possessed by a substance is directly converted into electrical energy. As a main structure of such a fuel cell, there is known a method in which unit cell structural members including a roughly flat-shaped membrane-electrode assembly (MEA: Membrane-Electrode Assembly) and separators are alternately stacked and closely spaced in the stacking direction. A solid so-called heap-structured structure. [0003] However, as a fuel cell with the above-mentioned stack structure, there is known a technique of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/10H01M50/77
CPCH01M8/247H01M8/242Y02E60/50H01M8/0286H01M8/0284Y02P70/50H01M8/2483H01M8/0267
Inventor 吉川大雄雫文成佐藤研二
Owner TOYOTA JIDOSHA KK
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