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Durable proton exchange membrane, preparation method and application thereof

A proton exchange membrane and durability technology, applied in fuel cells, electrochemical generators, electrical components, etc., can solve problems such as poor durability and poor performance of proton exchange membranes

Active Publication Date: 2019-11-12
上海元城汽车技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of proton exchange membrane, preparation method and application thereof, improve the poor durability of current proton exchange membrane, the defect of poor performance of proton exchange membrane caused by easy aging

Method used

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  • Durable proton exchange membrane, preparation method and application thereof
  • Durable proton exchange membrane, preparation method and application thereof
  • Durable proton exchange membrane, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of preparation method of above-mentioned proton exchange membrane, comprises the following steps:

[0047] (1) Configuration of the solution

[0048] Mix the ionic polymer resin solution: solvent: Schiff base phenolic amine compound according to the mass ratio = 1000:300:1, take 100g of 5% Nafion resin solution, add 30g of high boiling point polar solvent N,N-dimethyl formazan Amide, after mixing evenly, add 0.1g Schiff base phenolic amine organic compound SPD1, disperse and mix evenly to obtain a solution.

[0049] (2) Preparation of primary film

[0050] Put the solution in a beaker and heat it evenly under a heating plate at 50°C for 1 hour to remove the low boiling point solvent in the nafion resin solution, spread the solution evenly on the glass substrate by scraping method, and then dry it at 120°C for 0.5h to make the high The boiling point solvent N,N-dimethylformamide evaporates to form a primary film.

[0051] (3) Preparation of proton exchange memb...

Embodiment 2

[0054] A kind of preparation method of above-mentioned proton exchange membrane, comprises the following steps:

[0055] (1) Configuration of the solution

[0056] The mass ratio of ionomer resin solution: solvent: Schiff base phenolamine compound is 1000:300:2. Take 100g of 5% Nafion resin solution, add 30g of high boiling point polar solvent N,N-dimethylformamide, mix evenly, add 0.2g Schiff base phenolic amine organic compound SPD1, disperse and mix evenly to obtain a solution.

[0057] (2) Preparation of primary film

[0058] Put the solution in a beaker and heat it evenly under a heating plate at 50°C for 1 hour to remove the low boiling point solvent in the nafion resin solution, spread the solution evenly on the glass substrate by scraping method, and then dry it at 120°C for 0.5h to make the high The boiling point solvent N,N-dimethylformamide evaporates to form a primary film.

[0059] (3) Preparation of proton exchange membrane

[0060] The primary membrane was p...

Embodiment 3

[0062] A kind of preparation method of above-mentioned proton exchange membrane, comprises the following steps:

[0063] (1) Configuration of the solution

[0064] The mass ratio of ionomer resin solution: solvent: Schiff base phenolamine compound is 1000:300:1. Take 100g of 5% Nafion resin solution, add 30g of high boiling point polar solvent N,N-dimethylformamide, mix uniformly, add 0.1g Schiff base phenolic amine organic compound SPD2, disperse and mix uniformly to obtain a solution.

[0065] (2) Preparation of primary film

[0066] Put the solution in a beaker and heat it evenly under a heating plate at 50°C for 1 hour to remove the low boiling point solvent in the nafion resin solution, spread the solution evenly on the glass substrate by scraping method, and then dry it at 120°C for 0.5h to make the high The boiling point solvent N,N-dimethylformamide evaporates to form a primary film.

[0067] (3) Preparation of proton exchange membrane

[0068] The primary membrane...

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Abstract

The invention discloses a durable proton exchange membrane, a preparation method and application thereof. The durable proton exchange membrane is composed of an ionic polymer and a Schiff base phenolamine compound, wherein the mass percentage of the ionic polymer is 90% to 99.8% and the mass percentage of the Schiff base phenol amine compound is 0.2% to 10%. The Schiff base phenol lamine compoundin the durable proton exchange membrane is an organic substance, and as a radical scavenger, can provide active hydrogen to quench the free radicals (HO.) generated during the operation of a fuel cell and to inhibit the attack of the free radicals on the defective end groups of an ionic polymer macromolecular chain in the proton exchange membrane and the ether bonds of a main chain and a sulfonate side chain, thereby enhancing the durability of the proton exchange membrane. The Schiff base phenol amine compound is easy to be mixed and dispersed with the ionic polymer to prepare a homogeneousproton exchange membrane. The whole preparation method is simple in process, safe, friendly to environment, low in cost, and can be popularized.

Description

technical field [0001] The invention relates to the technical field of fuel cells, and in particular to a durable proton exchange membrane, a preparation method and an application thereof. Background technique [0002] Proton exchange membrane fuel cells have the advantages of high conversion efficiency, high specific energy, and wide power range. They can provide clean, efficient and reliable electric energy for devices that require electric power. They are mainly used in portable, stationary power generation and automobiles. The widest range of energy solutions. [0003] The aging of the PEM can lead to a sharp increase in the gas permeation of the cathode and anode reactants, resulting in severe mixed polarization and eventually the complete damage of the battery. [0004] Hereby, it is necessary to prepare a highly durable proton exchange membrane material. Contents of the invention [0005] The object of the present invention is to provide a proton exchange membrane...

Claims

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Application Information

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IPC IPC(8): H01M8/1051H01M8/1069
CPCH01M8/1051H01M8/1069H01M2008/1095Y02E60/50
Inventor 郭存心陈领平戴西槐宋俊杰魏亚南孟中华
Owner 上海元城汽车技术有限公司