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Fuel Cell Resin Frame Equipped Membrane Electrode Assembly

A technology of electrode structure and electrolyte membrane, which is applied to fuel cell parts, fuel cells, circuits, etc., can solve problems such as membrane degradation, achieve the effect of suppressing end degradation and simple configuration

Active Publication Date: 2014-09-24
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned Japanese Patent Application Laid-Open No. 2007-066766, at the boundary portion between the outer peripheral portion of GDL 3b having a smaller GDL area and the film 1, due to the oxidizing gas (O 2 ) Diffusion easily generates hydrogen peroxide (H 2 o 2 )
Therefore, film deterioration is easily caused at the end of the film 1

Method used

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  • Fuel Cell Resin Frame Equipped Membrane Electrode Assembly
  • Fuel Cell Resin Frame Equipped Membrane Electrode Assembly
  • Fuel Cell Resin Frame Equipped Membrane Electrode Assembly

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Embodiment Construction

[0020] Such as figure 1 as well as figure 2 As shown, the electrolyte membrane-electrode structure 10 with a resin frame according to the embodiment of the present invention is installed in a vertically (or horizontally) rectangular solid polymer fuel cell 12 . A plurality of fuel cells 12 are stacked, for example, in the direction of arrow A (horizontal direction) or the direction of arrow C (direction of gravity) to form a fuel cell stack. The fuel cell stack is mounted, for example, on a fuel cell electric vehicle (not shown) as a vehicle-mounted fuel cell stack.

[0021] The fuel cell 12 sandwiches the electrolyte membrane-electrode assembly 10 with the resin frame between the first separator 14 and the second separator 16 . The first separator 14 and the second separator 16 have a vertically long (or horizontally long) rectangular shape, and are made of, for example, a steel plate, a stainless steel plate, an aluminum plate, a plated steel plate, or a metal surface th...

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Abstract

A resin frame member of a resin frame equipped membrane electrode assembly includes a recess where adhesive is provided. An inner protrusion on an inner side of the recess abuts against an electrode catalyst layer protruding outward beyond a gas diffusion layer of a membrane electrode assembly. An outer protrusion on an outer side of the recess abuts against the outermost portion of a gas diffusion layer of the membrane electrode assembly such that a solid polymer electrolyte membrane is interposed between the outer protrusion and the gas diffusion layer.

Description

technical field [0001] The present invention relates to an electrolyte membrane-electrode structure with a resin frame for a fuel cell, which includes: a stepped MEA that sandwiches a solid polymer electrolyte membrane through a first electrode and a second electrode; and a resin frame member that arranged around the periphery of the stepped MEA. Background technique [0002] Generally, a solid polymer fuel cell uses a solid polymer electrolyte membrane composed of a polymer ion exchange membrane. The fuel cell uses a separator (bipolar plate) to sandwich the electrolyte membrane-electrode structure (MEA), and the electrolyte membrane-electrode structure (MEA) is equipped with catalysts on both sides of the solid polymer electrolyte membrane Layer (electrode catalyst layer) and gas diffusion layer (porous carbon) of the anode electrode and cathode electrode. By stacking a predetermined number of these fuel cells, it is used, for example, as a vehicle-mounted fuel cell stac...

Claims

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Application Information

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IPC IPC(8): H01M8/02
CPCH01M2008/1095H01M8/0284H01M8/0273H01M8/1004Y02E60/50
Inventor 田中之人满田直树杉浦诚治
Owner HONDA MOTOR CO LTD
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