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Fuel cell

A fuel cell and electrolyte membrane technology, which is applied to fuel cells, fuel cell parts, battery pack parts, etc., and can solve problems such as separator deformation, separator electrolyte membrane-electrode structure damage, and obstruction of fluid flow. , to achieve the effect of improving drainage

Active Publication Date: 2010-12-22
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are problems that the separator is deformed, the electrolyte membrane-electrode structure cannot be reliably held, the separator or the electrolyte membrane-electrode structure is damaged, and the smooth flow of fluid is hindered.

Method used

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Embodiment Construction

[0059] Such as figure 1 As shown, the fuel cell 10 according to the first embodiment of the present invention is configured by stacking first battery cells 12A and second battery cells 12B alternately in the arrow A direction.

[0060] Such as figure 2 As shown, the first battery unit 12A is provided with a first metal separator 14A, a first electrolyte membrane-electrode structure (MEA) 16a, a second metal separator 18A, a second electrolyte membrane-electrode structure 16b and a third metal Separator 20A.

[0061] The first metal separator 14A, the second metal separator 18A, and the third metal separator 20A are made of, for example, a steel plate, a stainless steel plate, an aluminum plate, a plated steel plate, or a metal surface treated for anticorrosion on the metal surface of the metal plate. board composition. The first metal separator 14A, the second metal separator 18A, and the third metal separator 20A have cross-sectional concavo-convex shapes by pressing met...

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Abstract

The present invention provides a fuel cell in which a membrane electrode assembly is held reliably, and fluids smoothly flow along buffers. The fuel cell is formed by stacking first cell units and second cell units alternately. An inlet buffer and an outlet buffer are formed on a surface of a first metal separator of the first cell unit. Bosses are provided in the inlet buffer and the outlet buffer of the first metal separator. An inlet buffer and an outlet buffer are formed on a surface of the second metal separator of the first cell unit. Continuous guide ridges are formed in the inlet buffer and the outlet buffer of the second metal separator. The bosses and the continuous guide ridges are provided at positions overlapped with each other in the stacking direction.

Description

technical field [0001] The present invention relates to a fuel cell in which an electrolyte membrane-electrode structure with electrodes provided on both sides of an electrolyte and a corrugated metal separator are laminated, and on both sides of the metal separator are formed The first and second fluid passages through which gas, oxidant gas or cooling medium flow through. Background technique [0002] For example, a solid polymer fuel cell has a unit cell in which an electrolyte membrane-electrode assembly (MEA) is sandwiched between a pair of separators, wherein the electrolyte membrane-electrode assembly is sandwiched between an electrolyte membrane formed of a polymer ion exchange membrane. An anode-side electrode and a cathode-side electrode are arranged on both sides, respectively. This type of fuel cell is usually used as a fuel cell stack by stacking a predetermined number of unit cells. [0003] In the above-mentioned fuel cell, a fuel gas flow path for flowing f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M2/16H01M2/18
CPCH01M8/0267H01M8/0228H01M8/0297Y02E60/50H01M8/0254H01M8/2483H01M8/0258
Inventor 杉浦诚治渡边康博佐藤修二高井贵裕坂野雅章
Owner HONDA MOTOR CO LTD
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