Isolation member for fuel cell and cell

A technology for isolating components and fuel cells, which is applied to fuel cell components, fuel cells, electrical components, etc., can solve problems such as high costs, and achieve the effect of suppressing differences in rigidity, simple and economical structure, and ensuring sealing.

Active Publication Date: 2019-04-12
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Elastic rubber seals such as fluorine-based or silicone are used as sealing parts, and there is a problem of high cost

Method used

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  • Isolation member for fuel cell and cell
  • Isolation member for fuel cell and cell
  • Isolation member for fuel cell and cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Hereinafter, preferred embodiments will be cited, and the fuel cell separator and battery cell according to the present invention will be described with reference to the drawings.

[0025] Such as figure 1 with figure 2 As shown, the fuel cell stack 10 has a laminated body 14 in which a plurality of cells (fuel cells) 12 are stacked in the horizontal direction (direction of arrow A) or in the direction of gravity (direction of arrow C). The fuel cell stack 10 is mounted, for example, on a fuel cell vehicle such as a fuel cell electric vehicle (not shown).

[0026] At one end in the stacking direction (direction of arrow A) of the laminated body 14, a terminal plate 16a, an insulator 18a, and an end plate 20a are disposed in this order outward (refer to figure 2 ). At the other end in the lamination direction of the laminated body 14, a terminal plate 16b, an insulator 18b, and an end plate 20b are sequentially disposed outward.

[0027] Such as figure 1 As shown,...

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PUM

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Abstract

The invention provides an isolation member for a fuel cell anda cell. A first metal isolation member constituting the cell has an oxidant gas inlet communication hole (34a) which is formed in the thickness direction of the isolation member in a penetrating manner; a communication hole pressing rib part (53) which surrounds the oxidant gas inlet communication hole (34a), and a plurality of channels, which press the ribs from the communicating holes (53) is protruded out of the side wall of the isolation part and is formed in the thickness direction of the isolation part. The plurality of channels (86) is the same as the cross section shape of the root part connected with the connecting hole pressing rib part (53). According to the invention, the device and the method can be operated simplyand economically so as to realize the homogenization of the surface pressure applied to the pressing rib sealing element surrounding the communication hole.

Description

technical field [0001] The present invention relates to a separator and cell for a fuel cell having a pressed rib seal surrounding a fluid communication hole. Background technique [0002] For example, a solid polymer fuel cell has a membrane electrode assembly (MEA) in which an anode electrode is arranged on one surface of an electrolyte membrane composed of a polymer ion exchange membrane, and an anode electrode is arranged on the other surface. A membrane electrode assembly provided with a cathode electrode. The membrane electrode assembly constitutes a cell (single fuel cell) by being sandwiched by separators (bipolar plates). A fuel cell stack having a stack in which a predetermined number of cells are stacked is incorporated in, for example, a fuel cell vehicle (fuel cell electric vehicle, etc.). [0003] In fuel cell stacks, metal spacers are sometimes used as spacers. At this time, in order to prevent leakage of the oxidant gas and the fuel gas, that is, the react...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0254H01M8/0258H01M8/0267H01M8/0276H01M8/1004H01M8/1007H01M8/241H01M8/2457H01M8/247H01M8/2483
CPCH01M8/0254H01M8/0258H01M8/0267H01M8/0276H01M8/1004H01M8/241H01M8/247H01M8/1007H01M8/2457H01M8/2483H01M8/026Y02E60/50
Inventor 苫名佑石田坚太郎小山贤
Owner HONDA MOTOR CO LTD
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