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Fuel cell

A fuel cell and electrolyte membrane technology, which is applied to fuel cells, fuel cell components, battery electrodes, etc., can solve the problems of fuel cell power generation performance degradation and insufficient supply, and achieve the effect of suppressing power generation performance degradation.

Active Publication Date: 2019-10-11
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During such an interval, the reaction gas may not be sufficiently supplied to the catalyst layer, and the power generation performance of the fuel cell may degrade

Method used

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Embodiment Construction

[0025] figure 1 is an exploded perspective view of the unit cell 2 of the fuel cell 1 . The fuel cell 1 is constructed by stacking unit cells 2 . figure 1 Only one unit cell 2 is shown and the other unit cells are omitted. unit cell 2 in figure 1 Stack with other unit cells in the Z direction shown in . The unit cell 2 has a substantially rectangular shape. The longitudinal direction and the short direction of the unit cell 2 correspond to the figure 1 The Y and X directions shown in .

[0026] The fuel cell 1 is a solid polymer type (Japanese and English do not match, here modified in Japanese) fuel cell that generates electricity using a fuel gas (for example, hydrogen) and an oxidant gas (for example, oxygen) as reaction gases. The unit cell 2 includes: a membrane electrode gas diffusion layer assembly (MEGA) 10; a support frame 18 which supports the MEGA 10; a cathode separator 20 and an anode separator 40 (hereinafter, referred to as a separator) which separate the ...

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Abstract

A fuel cell includes: an electrolyte membrane; first and second catalyst layers respectively formed on first and second surface of the electrolyte membrane; and a separator disposed opposite to the electrolyte membrane with respect to the first catalyst layer.

Description

technical field [0001] The present invention relates to fuel cells. Background technique [0002] A separator of a fuel cell is formed with a flow path groove through which a reaction gas flowing between the separator and a catalyst layer formed on an electrolyte membrane flows. A part of the reaction gas flowing through the flow path grooves is supplied to the catalyst layer, so that a power generation reaction occurs. For example, in Japanese Unexamined Patent Application Publication No. 2006-147466, a separator is formed with wave-shaped grooves as flow path grooves. [0003] For example, in Japanese Unexamined Patent Application Publication No. 2006-147466, wavy grooves are formed in a wave shape with a predetermined amplitude, while the edges of the catalyst layer are formed in substantially straight lines. There is a large space between the wavy grooves closest to the edge of the catalyst layer and the edge of the catalyst layer. During such an interval, the reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1006H01M8/026H01M8/0258
CPCH01M8/1006H01M8/0258H01M8/026H01M2008/1095Y02E60/50H01M8/0267H01M8/1004H01M8/04029H01M8/2457H01M8/241H01M4/8807H01M8/04089
Inventor 野野山顺朗绀野周重伊藤雅之
Owner TOYOTA JIDOSHA KK
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