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Bonding method which can be applied to fuel cells

A technology of fuel cells and bonding components, which is applied in the direction of fuel cells, bonding methods, fuel cell parts, etc., and can solve the problems of incompatibility in industrial production

Pending Publication Date: 2021-11-26
森碧欧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That time multiplied by the tens or hundreds of bipolar plates required to produce a fuel cell is not really compatible with industrial production

Method used

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  • Bonding method which can be applied to fuel cells
  • Bonding method which can be applied to fuel cells
  • Bonding method which can be applied to fuel cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] see figure 1 , shows the bonding method of the first component 1 and the second component 2 . To achieve this bonding, a slow-setting adhesive member 3 is provided on the first component 1 . A slow-setting adhesive member 3 may also be provided in the second component 2 . Or it can be doubled, part of the slow-setting adhesive member 3 is arranged on the first component 1 and part of the slow-setting adhesive member 3 is arranged on the second component 2 . The slow-setting adhesive member 3 is durable but has the disadvantage of requiring a curing time during which the two components 1, 2 cannot move without risk of relative movement.

[0052] In order to overcome this deficiency, a fast-setting adhesive member 4 is provided on the first component 1 . A fast-setting adhesive member 4 may also be provided on the second component 2 . Or it can be doubled, and part of the fast-setting adhesive member 4 is arranged on the first component 1 and part of the fast-setting ...

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PUM

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Abstract

The invention relates to a method for bonding a first component (1) to a second component (2), involving the following steps: depositing, onto the first component (1) and / or onto the second component (2), an adhesive means of a first type selected from a slow-setting adhesive means (3) or a quick-setting adhesive means (4), depositing, onto the first component (1) and / or onto the second component (2), an adhesive means of a second type which differs from the first type, selected from a slow-setting adhesive means (3) or a quick-setting adhesive means (4), bringing the two components (1, 2) into contact, -pressing, and - setting the slow-setting adhesive means (3). The invention can be applied in the assembly of a bipolar plate (6). The invention can be applied in the assembly of a fuel cell (7).

Description

technical field [0001] The present invention relates to the field of fuel cells, and more particularly to a method of bonding the various constituent plates applicable to the assembly of such fuel cells. Background technique [0002] Hydrogen fuel cells or proton exchange membrane fuel cells (PEMFC) generate electrical energy in a known manner by carrying out chemical reactions for the synthesis of water using a membrane electrode assembly comprising an electrolyte surrounded by two layers of catalyst. Hydrogen H 2 is brought to the anode on one side of the membrane. It breaks down by oxidation: 2H 2 →4H + +4e － , decomposed into two hydrogen protons H + and two electrons e － . two h + Protons migrate through the MEA to the cathode on the other side of the MEA. Oxygen O 2 is supplied to the cathode in the form of air. If established between anode and cathode allow e － The circuit through which electrons flow, they reach the cathode. At the cathode, oxygen O 2 r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0286
CPCH01M8/0286H01M8/028H01M8/2404H01M2008/1095B32B7/12C09J2203/33C09J5/00Y02E60/50
Inventor R·帕诺佐C·罗曼德
Owner 森碧欧