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Anion exchange membrane for new energy fuel cells and preparation method thereof

An anion exchange membrane, fuel cell technology, applied in fuel cells, circuits, electrical components, etc. Problems such as poor chemical stability, which are beneficial to battery assembly, chemical stability and mechanical performance improvement, and low equipment requirements

Inactive Publication Date: 2017-05-10
CHENGDU YUYA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional quaternary ammonium salt type polymer anion exchange membrane has poor thermal and chemical stability
These defects hinder the commercial application of traditional quaternary ammonium salt type polymer anion exchange membrane alkaline fuel cells

Method used

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  • Anion exchange membrane for new energy fuel cells and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing an anion exchange membrane for a new energy fuel cell with fast load response, comprising the following steps:

[0034] 1) Preparation of base film: Mix 3g of p-chlorostyrene, 2g of 2-vinylaniline, 0.05g of octaphenyl POSS and 0.1g of sodium dodecylbenzenesulfonate, drop them into a mold made of glass, put In the radiation field under the nitrogen atmosphere, the radiation source cobalt 60-γ radiation is used for 30 minutes, and the polymerization reaction occurs;

[0035] 2) Basement membrane-supported electrocatalyst: Soak the basement membrane prepared in step 1) in an ethanol solution of chloroplatinic acid with a solute mass fraction of 1% for 70 hours, take it out and wash it 4 times with deionized water and soak it at 70°C The lower mass fraction is 5% reducing agent (a mixture of sodium borohydride and lithium aluminum hydride, the mass ratio is 2:3) in an aqueous solution for 60 hours, take it out and wash it with deionized water for 5 ti...

Embodiment 2

[0040] A method for preparing an anion exchange membrane for a new energy fuel cell with fast load response, comprising the following steps:

[0041] 1) Preparation of base film: Mix 3g of p-chloromethylstyrene, 2g of 3-vinylaniline, 0.05g of divinylbenzene and 0.1g of polyoxypropylene polyvinyl glyceryl ether, drop them into a mold made of glass, and put Into the radiation field under the helium atmosphere, the radiation source X-ray radiation is used, and the irradiation time is 25 minutes, and the polymerization reaction occurs;

[0042] 2) Basement membrane-supported electrocatalyst: Soak the basement membrane prepared in step 1) in an ethanol solution of chloroplatinic acid with a solute mass fraction of 0.6% for 76 hours, take it out and wash it 4 times with deionized water and soak it at 60°C The lower mass fraction is 3% reducing agent (a mixture of sodium borohydride and lithium aluminum hydride, the mass ratio is 2:3) in an aqueous solution for 66 hours, take it out ...

Embodiment 3

[0047] A method for preparing an anion exchange membrane for a new energy fuel cell with fast load response, comprising the following steps:

[0048]1) Preparation of base film: Mix 3g of β-bromostyrene, 2g of 4-vinylaniline, 0.05g of octaphenyl POSS and 0.1g of nonylphenol polyoxyethylene ether, drop them into a mold made of glass, and put them in In the radiation field under the neon gas atmosphere, the radiation source β-ray radiation is used for 27 minutes, and the polymerization reaction occurs;

[0049] 2) Basement membrane-supported electrocatalyst: Soak the basement membrane prepared in step 1) in an ethanol solution of chloroplatinic acid with a solute mass fraction of 0.9% for 88 hours, take it out and wash it 5 times with deionized water, and soak it at 67°C The lower mass fraction is 4% reducing agent (mixed by sodium borohydride and lithium aluminum hydride, the mass ratio is 2:3) in aqueous solution for 66 hours, take it out and wash it with deionized water for 6...

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Abstract

The invention discloses an anion exchange membrane for new energy fuel cells and a preparation method thereof. The preparation method comprises the following steps: mixing a polymerization type monomer (A), a polymerization type monomer (B), a diolefin crosslinking agent, and an emulsifier, dropwise adding the mixture into a mould made of glass, placing the mould in a radiation field in an inert atmosphere, radiating the mould by a radiation source to trigger polymerization reactions, soaking the polymerization product in an ethanol solution of chloroplatinic acid and a water solution of a reducing agent to load an electric catalyst, soaking the polymerization product in a benzene solution of triphenylamine to carry out quaternary amination, and finally soaking the polymerization product in a KOH solution (0.5-1 mol / L) to carry out ion exchange. The prepared anion exchange membrane has a good performance on resisting alkalis, strong mechanical properties, and high ionic conductivity and thermal stability. Moreover, the anion exchange membrane carries an electric catalyst, the phase separation between the membrane and an electrode is reduced; the battery assembly becomes easy, the electric catalyst is evenly dispersed on the surface of the membrane, and the electric catalysis efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of new energy and new materials, and relates to an anion exchange membrane and a preparation method thereof, in particular to an anion exchange membrane for a new energy fuel cell and a preparation method thereof. Background technique [0002] With the development of the economy and the enhancement of people's awareness of improving the quality of life, energy issues and environmental issues are still two serious problems facing the current society. As a new generation of clean new energy devices, polymer anion exchange membrane fuel cells have the advantages of high specific power and specific energy, environmental friendliness, no electrolyte loss, fast load response, etc., and meet the needs of "sustainable development" and "low-carbon economy" development Therefore, it has broad market demand and application value. [0003] As one of the key parts of the anion exchange membrane fuel cell, the anion exch...

Claims

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Application Information

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IPC IPC(8): H01M8/1018H01M8/1072H01M8/1086
CPCH01M8/1018H01M8/1072H01M8/1086Y02E60/50
Inventor 向红先
Owner CHENGDU YUYA TECH