Fuel cell sealing method and sealing structure

A fuel cell and sealing structure technology, which is applied to fuel cell parts, structural parts, battery pack parts, etc. , high operator skill requirements, etc., to shorten the production cycle, improve work efficiency and assembly safety, and simplify the assembly process.

Inactive Publication Date: 2010-02-17
HANERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has many components, cumbersome installation procedures, low operating efficiency, and relies more on manual operation, which requires high skill of the operator, resulting in unstable

Method used

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  • Fuel cell sealing method and sealing structure
  • Fuel cell sealing method and sealing structure
  • Fuel cell sealing method and sealing structure

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described in detail through the following examples in conjunction with the accompanying drawings, but are not limited to the content of this example.

[0026] A fuel cell sealing method, comprising the steps of:

[0027] 1) Carry out mold design according to the shape of membrane electrode, be provided with injection port and exhaust port on described mold;

[0028] 2) Fix and clamp the prepared membrane electrode with the mold, form a closed space connected with the injection port around the membrane electrode, and then inject the sealing material from the injection port until it is filled In the enclosed space, air and excess sealing material are discharged through the exhaust port;

[0029] 3) Under a certain pressure, heat the above-mentioned mold until the sealing material solidifies, remove the mold, and obtain the sealing structure of the fuel cell, such as figure 1 , figure 2 , image 3 shown....

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Abstract

The invention discloses a fuel cell sealing method and a sealing structure. The method comprises: carrying out die design according to the shape of a membrane electrode, arranging a glue injection port and an air exhaust port on the die, fixing and clamping the prepared membrane electrode tightly with the die, then injecting the sealing material via the glue injection port until full, exhausting air and superfluous sealing material via the air exhaust port, finally, heating until the sealing material is solidified, and de-molding the die to obtain the sealing structure of the fuel cell. The invention also discloses the sealing structure of the fuel cell. The invention is simple in operation, is suitable for mass production, enhances sealing effect of fuel cell, improves discharge performance, stability and consistency, and prolongs the service life.

Description

technical field [0001] The invention relates to a fuel cell sealing method and a sealing structure. Background technique [0002] A fuel cell is a device that directly converts the chemical energy of hydrogen and oxygen into electrical energy through an electrode reaction. The biggest feature of this device is that since no combustion is involved in the reaction process, its energy conversion efficiency is not limited by the "Carnot cycle". The efficiency of most types of fuel cells is as high as 50%-60%. With secondary utilization, the total efficiency can be as high as 80%-85%. As a power source, its actual energy utilization efficiency is 2-3 times that of ordinary internal combustion engines. There is almost no pollution during its working process, and the power range is from several watts to several megawatts, and the application range is very wide. [0003] There are many types of fuel cells, among which proton exchange membrane fuel cells have the advantages of low ...

Claims

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Application Information

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IPC IPC(8): H01M2/08H01M8/02
CPCY02E60/12Y02P70/50Y02E60/50
Inventor 汪达成周燕钧李志民侯晓峰肖钢
Owner HANERGY TECH
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