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A kind of preparation method of fiber skeleton fuel cell proton exchange membrane

A proton exchange membrane and fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as easy to evaporate water, difficult to keep moisture, easy to be damaged by swelling, etc., to improve high temperature working stability, improve water retention, The effect of prolonging the service life

Active Publication Date: 2020-11-17
中盛鑫控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defect that the existing proton exchange membrane is easy to evaporate water and difficult to keep moisture under high temperature working conditions, and is easy to be swollen and damaged when retaining water, the present invention proposes a method for preparing a fiber-skeleton fuel cell proton exchange membrane

Method used

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  • A kind of preparation method of fiber skeleton fuel cell proton exchange membrane

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Effect test

Embodiment 1

[0030] (1) Clean the continuous glass fiber with a diameter of 20-30 μm with a sodium hydroxide solution with a mass concentration of 3% to clean and activate the surface of the inorganic fiber, and dry it at 100°C for later use;

[0031] (2) Carding the glass fiber treated in step (1) and the sulfonated polyarylether nitrile ketone fiber with a diameter of 10-20 μm at a mass ratio of 1:3 using a conventional fiber carding machine, and laying and crossing to form a mesh;

[0032] (3) Spray a layer of Nafion solution with a mass concentration of 5% on the mesh cloth obtained in step (2), and the spraying amount is 10% of the total mass of the mesh cloth, so that the Nafion solution fully penetrates the mesh cloth, and then sprays it with aluminum chloride solution , ammonia solution, and silica airgel, the dispersion liquid is an aluminum chloride solution with a mass concentration of 8%, ammonia solution with a mass concentration of 3%, and silica airgel at a mass ratio of 1:3:...

Embodiment 2

[0035] (1) Clean the continuous glass fiber with a diameter of 20-30 μm with a sodium hydroxide solution with a mass concentration of 3% to clean and activate the surface of the inorganic fiber, and dry it at 100°C for later use;

[0036] (2) Comb the glass fiber treated in step (1) and the sulfonated polyether ether ketone fiber with a diameter of 10-20 μm at a mass ratio of 1:4 using a conventional fiber carding machine, and lay the net to cross into a net;

[0037](3) Spray a layer of Nafion solution with a mass concentration of 5% on the mesh cloth obtained in step (2), and the spraying amount is 15% of the total mass of the mesh cloth, so that the Nafion solution fully penetrates the mesh cloth, and then sprays it with aluminum chloride solution , ammonia solution, and silica airgel, the dispersion liquid is an aluminum chloride solution with a mass concentration of 8%, ammonia solution with a mass concentration of 3%, and silica airgel at a mass ratio of 1:3:3 It is disp...

Embodiment 3

[0040] (1) Clean the continuous glass fiber with a diameter of 20-30 μm with a sodium hydroxide solution with a mass concentration of 5% to clean and activate the surface of the inorganic fiber, and dry it at 100°C for later use;

[0041] (2) Carding the glass fiber treated in step (1) and the sulfonated polyarylether nitrile ketone fiber with a diameter of 10-20 μm in a mass ratio of 1:3 with conventional fiber carding, and laying and crossing to form a mesh;

[0042] (3) Spray a layer of Nafion solution with a mass concentration of 5% on the mesh cloth obtained in step (2), and the spraying amount is 15% of the total mass of the mesh cloth, so that the Nafion solution fully penetrates the mesh cloth, and then sprays it with aluminum chloride solution , ammonia solution, and silica airgel, the dispersion liquid is an aluminum chloride solution with a mass concentration of 8%, ammonia solution with a mass concentration of 3%, and silica airgel at a mass ratio of 1:3:3 It is di...

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Abstract

The invention relates to the technical field of fuel cells, and particularly provides a preparation method of a fiber skeleton fuel cell proton exchange membrane. According to the invention, the method comprises the steps: forming screen cloth through high-temperature-resistant fibers and sulfonated resin fibers, taking the fiber screen cloth as a skeleton, forming microporous screen cloth with high temperature resistance through in-situ forming of aluminum hydroxide for bonding and coating, and enabling Nafion liquid to cover and permeate into micropores of the screen cloth, so that the proton exchange membrane of the fiber skeleton fuel cell is obtained. The silicon dioxide aerogel contained in the proton exchange membrane has a certain water-holding capacity under a high-temperature working condition so as to ensure moisture retention, and the fibrous skeleton contains inorganic fibers during water retention, so the skeleton is stable and is not easy to swell and damage, and the working life of the proton exchange membrane is effectively prolonged.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a preparation method for a proton exchange membrane of a fiber skeleton fuel cell. Background technique [0002] A fuel cell is a power generation device that directly converts the chemical energy of fuel and oxidant into electrical energy through an electrochemical reaction. It is mainly composed of positive electrode, negative electrode, electrolyte and auxiliary equipment. Due to the advantages of high efficiency, fast start-up, and low pollution, fuel cells are considered to be the fourth power generation technology that is expected to provide a large amount of electric energy after wind power, water power and solar power. The two major problems of "energy shortage" and "environmental pollution" have been solved, and the diversification of energy sources has been realized. Proton Exchange Membrane Fuel Cell (PEMFC) is a low-temperature fuel cell. In addition to the general charact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1086
CPCH01M8/1086H01M8/109H01M8/1093Y02E60/50
Inventor 曾军堂陈庆何方陈涛
Owner 中盛鑫控股有限公司
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