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A composite proton exchange membrane for hydrogen fuel cell and a preparation method thereof

A proton exchange membrane, fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of low mechanical strength, poor dimensional stability, low proton conductivity, etc., and achieve improved proton conductivity and high structural regularity. , good dimensional stability

Inactive Publication Date: 2019-01-11
杭州润涞科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most existing proton exchange membranes have defects such as low mechanical strength, poor dimensional stability, and low proton conductivity, which affect and limit the possibility of the application of proton exchange membranes

Method used

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  • A composite proton exchange membrane for hydrogen fuel cell and a preparation method thereof
  • A composite proton exchange membrane for hydrogen fuel cell and a preparation method thereof

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Embodiment 1

[0025] A composite proton exchange membrane for a hydrogen fuel cell and a preparation method thereof, comprising a Nafion membrane 3, a polymer, and a carbon nanotube layer, wherein the polymer includes a first polymer layer 2 and a second polymer layer 4, and the The carbon nanotube layer includes a first carbon nanotube layer 1 and a second carbon nanotube layer 5; the composite proton exchange membrane material is prepared by a layer-by-layer self-assembly method, and the Nafion membrane 3 is first immersed in a polymer solution , and then immersed in the solution of carbon nanotube dispersion, using this method to obtain a hamburger structure film of carbon nanotube film / polymer / Nafion / polymer / carbon nanotube film. Wherein, the Nafion membrane 3 is Du Pont company's 115 commercialized membranes, the pretreatment process is as follows:

[0026] (1) will 115 commercial membranes were placed in 80°C, 4wt.% H 2 o 2 Treat in the solution for 60 minutes to remove metal an...

Embodiment 2

[0035] A composite proton exchange membrane for a hydrogen fuel cell and a preparation method thereof, comprising a Nafion membrane 3, a polymer, and a carbon nanotube layer, wherein the polymer includes a first polymer layer 2 and a second polymer layer 4, and the The carbon nanotube layer includes a first carbon nanotube layer 1 and a second carbon nanotube layer 5; the composite proton exchange membrane material is prepared by a layer-by-layer self-assembly method, and the Nafion membrane 3 is first immersed in a polymer solution , and then immersed in the solution of carbon nanotube dispersion, using this method to obtain a hamburger structure film of carbon nanotube film / polymer / Nafion / polymer / carbon nanotube film. Wherein said Nafion film 3 is Du Pont company's through pretreatment process 115 commercialized membranes, the pretreatment process is as follows:

[0036] (1) will 115 commercial membranes were placed in 80°C, 5wt.% H 2 o 2 Treat in the solution for 50mi...

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Abstract

The invention discloses a composite proton exchange membrane for hydrogen fuel cell and a preparation method thereof. The film material is prepared by a layer-by-layer self-assembly method, wherein the Nafion film is first immersed in a polymer solution, and then immersed in a carbon nanotube dispersion solution, and a hamburger structure film of the carbon nanotube film / polymer / Nafion / polymer / carbon nanotube film is obtained by the method. The invention discloses a composite proton exchange membrane for hydrogen fuel cell and a preparation method thereof, which has high manufacturing processprecision and can be used for preparing a high-performance composite proton exchange membrane for hydrogen fuel cell, and the obtained membrane material not only has high structural regularity and good dimensional stability, but also has improved proton conductivity of the membrane.

Description

technical field [0001] The invention relates to the field of hydrogen fuel cells, in particular to a composite proton exchange membrane for hydrogen fuel cells and a preparation method thereof. Background technique [0002] As one of the most important green technologies in the 21st century, hydrogen fuel cells have the advantages of high energy conversion rate, low pollutant emissions, wide fuel sources and high safety factor, and are considered to be the most likely to replace non-renewable resources such as traditional fossil fuels. For the energy shortage and environmental pollution problems that the world is currently facing, fuel cells have unparalleled advantages and can help human beings solve environmental pollution problems and dependence on non-renewable resources such as petroleum. Since the 1970s, my country's fuel cell research has made breakthroughs. Fuel cells can be divided into various types according to different working conditions and electrolyte types. F...

Claims

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Application Information

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IPC IPC(8): H01M8/1053H01M8/1069
CPCH01M8/1053H01M8/1069Y02E60/50Y02P70/50
Inventor 朱谚谚赵群
Owner 杭州润涞科技服务有限公司
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