A kind of proton exchange membrane with high resistance alcohol performance and preparation method thereof

A technology of proton exchange membrane and proton exchange, applied in the direction of final product manufacturing, climate sustainability, sustainable manufacturing/processing, etc., can solve problems such as swelling, dependence on proton conductivity, and intensified methanol penetration, and achieve improved energy density, Effect of low price and low methanol permeability

Active Publication Date: 2020-01-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Description
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Problems solved by technology

However, its proton conductivity depends on the ion exchange capacity (Ionic exchange capacity, IEC). Only under the condition of high IEC can high proton conductivity be obtained, but at the same time, there are problems of intensified methanol penetration and severe swelling.

Method used

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  • A kind of proton exchange membrane with high resistance alcohol performance and preparation method thereof
  • A kind of proton exchange membrane with high resistance alcohol performance and preparation method thereof
  • A kind of proton exchange membrane with high resistance alcohol performance and preparation method thereof

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Embodiment Construction

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] An embodiment of the present invention provides a proton exchange membrane with high alcohol resistance properties, the film-forming raw materials of the proton exchange membrane are brominated polyphenylene ether and sulfonated polyether ether ketone, and the brominated polyphenylene oxide in the film-forming raw material is The mass ratio of the ether to the sulfonated polyether ether ketone can ensure the conductivity of the proton, and the mass ratio of the brominated polyphenylene ether to the sulfonated polyether ether ketone can be adjusted under the condition of ensuring the proton conductivity.

[0026] In one embodiment, the mass fraction of brominated polyphenylene ether in the film-forming raw material is 5-60%, the benzyl bromination d...

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Abstract

The invention discloses a proton exchange membrane having high methanol resistance. The proton exchange membrane is produced from brominated polyphenylene ether and sulfonated polyetheretherketone. The invention also provides a production method and an application of the proton exchange membrane having high methanol resistance. The proton exchange membrane having high methanol resistance improves the problem of severe swelling of the sulfonated polyetheretherketone, can be applied to direct methanol fuel cells with a high methanol concentration, has a low methanol permeability, has high energy output under a high methanol concentration condition, greatly improves the energy density of the cells, and makes the cells have excellent performances. Additionally, the proton exchange membrane having high methanol resistance can be widely commercialized.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to a proton exchange membrane with high alcohol resistance performance and a preparation method thereof. Background technique [0002] At present, the problems of environmental pollution and energy shortage are increasing day by day, and it is increasingly urgent to develop clean and efficient energy conversion technologies. A fuel cell is a device that directly converts chemical energy into electrical energy, with an energy conversion efficiency as high as 60%, and has broad development prospects and social and economic benefits. [0003] Direct methanol fuel cells (DMFCs), as a kind of fuel cells, have attracted extensive attention due to the abundant sources of methanol fuel and the characteristics of environmental friendliness. At present, one of the main obstacles hindering the widespread application of DMFCs is severe methanol permeation. Methanol ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1041H01M8/1072H01M8/1011C08J5/22C08J3/24C08L61/16C08L71/12
CPCC08J3/247C08J5/2275C08J2361/16C08J2471/12H01M8/1011H01M8/1041H01M8/1072Y02E60/50Y02P70/50
Inventor 程寒松张运丰刘旭坡李翠翠
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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