Preparation method of modified proton exchange battery diaphragm

A proton exchange, battery membrane technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of low energy efficiency of fuel cells, and achieve the effects of preventing penetration, improving water retention performance, and enhancing conductivity.

Pending Publication Date: 2020-07-28
石狮申泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, in view of the above content, the present invention provides a preparation method of a modified proton exchange battery diaphragm, which solves the defect of low energy efficiency of fuel cells in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method for a modified proton exchange battery diaphragm, comprising the following processing steps:

[0023] (1) Using the polyperfluoroethylene film as the base film, the base film is irradiated with electrons, and the dose of electron irradiation is 30kGy;

[0024] (2) Soak the base film treated with electron irradiation in the modified polyetheretherketone for 2h, the treatment method of the modified polyetheretherketone is: mix and react polyetheretherketone and concentrated sulfuric acid for 2h, Add N'N-dimethylacetamide and organic montmorillonite, the mass ratio of N'N-dimethylacetamide and organic montmorillonite is 4:1, and stir at 50°C for 4 hours to obtain the modified Sexual polyether ether ketone;

[0025] (3) Preparation of sulfonating agent: bisphenol A type polysulfone is mixed with 1,4-dichloromethoxybutane, and the consumption of polysulfone and 1,4-dichloromethoxybutane is calculated by mass ratio= 1:5, react to generate chloromethylat...

Embodiment 2

[0028] A preparation method for a modified proton exchange battery diaphragm, comprising the following processing steps:

[0029] (1) Using the polyperfluoroethylene film as the base film, the base film is irradiated with electrons, and the dose of electron irradiation is 300kGy;

[0030] (2) Soak the base film treated with electron irradiation in the modified polyether ether ketone for 2.5 hours. h, add N'N-dimethylacetamide and organic montmorillonite, the amount of N'N-dimethylacetamide and organic montmorillonite is 5:1 in mass ratio, stir at 54°C for 4.5h, That is, the modified polyether ether ketone is obtained;

[0031] (3) Preparation of sulfonating agent: bisphenol A type polysulfone is mixed with 1,4-dichloromethoxybutane, and the consumption of polysulfone and 1,4-dichloromethoxybutane is calculated by mass ratio= 1:7, react to generate chloromethylated polysulfone, then add 2-naphthol-6,8-potassium disulfonate, chloromethylated polysulfone and 2-naphthol-6,8-pota...

Embodiment 3

[0034] A preparation method for a modified proton exchange battery diaphragm, comprising the following processing steps:

[0035] (1) Using the polyperfluoroethylene film as the base film, the base film is irradiated with electrons, and the dose of electron irradiation is 500kGy;

[0036] (2) Soak the base film treated with electron irradiation in modified polyether ether ketone for 3 hours, the treatment method of the modified polyether ether ketone is: mix and react polyether ether ketone with concentrated sulfuric acid for 3 hours, Add N'N-dimethylacetamide and organic montmorillonite, the mass ratio of N'N-dimethylacetamide and organic montmorillonite is 6:1, stir at 58°C for 5h, and the improved Sexual polyether ether ketone;

[0037] (3) Preparation of sulfonating agent: bisphenol A type polysulfone is mixed with 1,4-dichloromethoxybutane, and the consumption of polysulfone and 1,4-dichloromethoxybutane is calculated by mass ratio= 1:10, react to generate chloromethyla...

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PUM

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Abstract

The invention relates to the field of battery diaphragms, and provides a preparation method of a modified proton exchange battery diaphragm, which solves the defect of low energy efficiency of a fuelcell in the prior art, and comprises the following treatment steps: (1) taking a polyperfluoroethylene membrane as a base membrane, and carrying out electron irradiation on the base membrane; (2) soaking the base membrane subjected to electron irradiation treatment in modified polyether-ether-ketone for 2-3 hours; (3) preparing a sulfonating agent: mixing bisphenol A type polysulfone with 1, 4-dichloromethoxybutane, carrying out a reaction to generate chloromethylated polysulfone, and then adding 2-naphthol-6, 8-potassium disulfonate to prepare the sulfonating agent; and (4) taking out the base membrane in the step (2), pouring the sulfonating agent in the step (3) onto the base membrane, cleaning the base membrane with deionized water, taking out the base membrane, soaking the base membrane in a sulfuric acid solution, taking out the base membrane after the base membrane is fully replaced with H < + >, washing off sulfuric acid with deionized water, and finally drying to obtain the modified proton exchange battery diaphragm.

Description

technical field [0001] The invention relates to the field of battery diaphragms, in particular to a preparation method of a modified proton exchange battery diaphragm. Background technique [0002] Proton exchange membrane fuel cell (PEMFC for short) is a kind of fuel cell, which is equivalent to the "reverse" device of water electrolysis in principle. Its single cell is composed of anode, cathode and proton exchange membrane. The anode is the place where the hydrogen fuel is oxidized, and the cathode is the place where the oxidant is reduced. Both electrodes contain catalysts that accelerate the electrochemical reaction of the electrode. A DC power supply, its anode is the negative pole of the power supply, and the cathode is the positive pole of the power supply. [0003] The structure of the proton exchange membrane fuel cell is composed of dozens to hundreds of membrane electrodes and bipolar plates alternately connected in series. The two ends of the battery are sealed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1048H01M8/1072H01M8/1088
CPCH01M8/1072H01M8/1088H01M8/1048Y02E60/50
Inventor 俞晓
Owner 石狮申泰新材料科技有限公司
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