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Fuel cell

A fuel cell and electrode technology, which is applied in the direction of fuel cells, fuel cell additives, circuits, etc., can solve problems such as complex structures, and achieve the effect of low cost and light weight

Active Publication Date: 2012-10-24
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a sealing member is required on the outside of the terminal 4 for the cell voltage monitor, so there is a problem that the structure becomes complicated.

Method used

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Embodiment Construction

[0074] like figure 1 and figure 2 As shown, the fuel cell 10 according to the first embodiment of the present invention is formed by stacking a plurality of unit cells 12 in the direction of arrow A (horizontal direction).

[0075] The unit cell 12 includes a first electrolyte membrane electrode assembly (electrolyte electrode assembly) (MEA) 14, a first metal separator 16, a second electrolyte membrane electrode assembly (electrolyte electrode assembly) (MEA) 18, and a second electrolyte membrane electrode assembly (electrolyte electrode assembly) (MEA). Metal partition 20. By stacking single cell units 12, the first electrolyte membrane electrode structure 14 is sandwiched by the second and first metal separators 20, 16, and on the other hand, the second electrolyte membrane electrode structure 18 is sandwiched by the first and second metal separators. Metal partitions 16,20.

[0076] The first electrolyte membrane electrode assembly 14 and the second electrolyte membra...

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PUM

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Abstract

The invention provides a fuel cell which can prevent the interference of a cell voltage monitor terminal and seal members in a simple structure and can better determine the voltage of cell. The fuel cell (10) includes a first membrane electrode assembly (MEA) (14), a first metal separator (16), a second membrane electrode assembly (MEA) (18), and a second metal separator (20). A frame portion (28a) is arranged on the periphery of the second membrane electrode assembly (MEA) 18, the frame portion (28b) is provided with an inner seal member (76), an outer seal member (74), and a cell voltage monitor terminal embedded at the frame portion (28b). The outer periphery of the second metal separator (20) is configured between the inner seal member (76) and the outer seal member (74), the cell voltage monitor terminal (120) includes an exposed portion (120a) provided between the inner seal member (76) and the outer seal member (74). The exposed portion (120a) is in contact with the metal separator (20) adjacent to the exposed portion.

Description

technical field [0001] The present invention relates to a fuel cell in which an electrolyte electrode structure and a metal separator are laminated, wherein the electrolyte electrode structure is provided with a pair of electrodes on both sides of the electrolyte and a resin frame member is integrally provided on the outer periphery. Background technique [0002] For example, a solid polymer fuel cell uses a solid polymer electrolyte membrane composed of a polymer ion exchange membrane. In this fuel cell, an electrolyte membrane in which an anode-side electrode and a cathode-side electrode each composed of an electrode catalyst layer and porous carbon are arranged on both sides of a solid polymer electrolyte membrane is sandwiched by separators (bipolar plates). The electrode structure (electrolyte electrode structure) (MEA) thus constitutes a unit cell. Generally, a fuel cell stack in which a predetermined number of such single cells are stacked is used, for example, as a ...

Claims

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Application Information

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IPC IPC(8): H01M8/04
CPCH01M2008/1095H01M8/0273Y02E60/521H01M8/04H01M8/04552H01M8/242Y02E60/50H01M8/0267H01M8/2483H01M8/0271
Inventor 水崎君春后藤修平满冈隆昭冲山玄室本信义胜野正之
Owner HONDA MOTOR CO LTD
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