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Fuel cell stack

A technology for fuel cell stacks and single cells, which is applied in the direction of fuel cells, fuel cell groups, fuel cell components, etc. It can solve problems such as high manufacturing costs, achieve good sealing, suppress compression loads, and prevent deviation of contact positions. moving effect

Pending Publication Date: 2020-07-10
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing member uses elastic rubber seals such as fluorine-based and silicone, which has the problem of high manufacturing costs.

Method used

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  • Fuel cell stack
  • Fuel cell stack
  • Fuel cell stack

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Experimental program
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Embodiment Construction

[0026] Hereinafter, the fuel cell stack of the present invention will be described with reference to preferred embodiments and with reference to the drawings.

[0027] Such as figure 1 as well as figure 2 As shown, a fuel cell stack 10 according to an embodiment of the present invention includes a cell stack 14 in which a plurality of power generation cells 12 are stacked in the horizontal direction (arrow A direction). In addition, a plurality of power generating cells 12 may be stacked in the direction of gravity (direction of arrow symbol C). The fuel cell stack 10 is mounted, for example, on a fuel cell vehicle such as a fuel cell electric vehicle (not shown).

[0028] exist figure 2 Among them, a terminal plate 16 a , an insulator 18 a , and an end plate 20 a are sequentially disposed outwardly at one end in the stacking direction (arrow A direction) of the cell stack 14 . The terminal plate 16b, the insulator 18b, and the end plate 20b are arranged in this order to...

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PUM

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Abstract

A fuel cell stack 10 includes a cell stack body 14 formed by stacking a plurality of power generation cells 12 in a staking direction. The cell stack body includes end metal separators 30e,32e provided at both ends of the power generation cells 12 in the stacking direction. Bead seals 52,62 are formed integrally with the end metal separators, respectively. Metal plates 80,90 and elastic seal members 82,92 are overlapped with each other at positions facing the bead seals. The metal plates are supported by electrically insulating support members 84,94, and provided between the bead seals 52,62 and the elastic seal members 82,92, respectively.

Description

technical field [0001] The present invention relates to a fuel cell stack including a unit cell stack body in which a plurality of power generation unit cells are stacked, and the power generation unit cells have an electrolyte membrane-electrode structure and a metal separator. Background technique [0002] For example, a solid polymer fuel cell includes an electrolyte membrane-electrode structure (MEA) in which an anode electrode is disposed on one side of an electrolyte membrane formed of a polymer ion exchange membrane, and an anode electrode is disposed on the other side of the electrolyte membrane. A cathode electrode is provided on the surface. The electrolyte membrane-electrode structure is sandwiched between separators (bipolar plates), thereby constituting a power generating unit cell. A fuel cell stack including a stack in which a predetermined number of power generating cells are stacked is incorporated in, for example, a fuel cell vehicle (fuel cell electric ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0273H01M8/0276H01M8/24
CPCH01M8/0273H01M8/0276H01M8/2465Y02E60/50H01M8/0206H01M2008/1095H01M8/0267H01M8/24H01M8/1004
Inventor 池田佑太井上直树小林纪久水崎君春柴田智康和田真史
Owner HONDA MOTOR CO LTD