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Method for preparing high-temperature-resistant BPO4-ABPBI nanometer composite proton exchange membrane for fuel cell

A BPO4-ABPBI, proton exchange membrane technology, used in fuel cell parts, fuel cells, battery pack parts, etc., can solve the problems of PEMFC performance degradation, easy loss, and proton exchange membrane proton conductivity. The effect of good proton conductivity

Inactive Publication Date: 2010-11-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these substances have good water solubility and are easy to be lost during the operation of PEMFC, causing a decrease in the proton conductivity of the proton exchange membrane, resulting in a decrease in the performance of the PEMFC, or even malfunctioning

Method used

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  • Method for preparing high-temperature-resistant BPO4-ABPBI nanometer composite proton exchange membrane for fuel cell
  • Method for preparing high-temperature-resistant BPO4-ABPBI nanometer composite proton exchange membrane for fuel cell
  • Method for preparing high-temperature-resistant BPO4-ABPBI nanometer composite proton exchange membrane for fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: High temperature resistant BPO 4 -Preparation of ABPBI nanocomposite proton exchange membrane

[0023] (1) Weigh 34.0g ABPBI solution, add 0.30g BPO 4 and dispersant (PEG / SDBS / TBAB), grind for 2 hours to obtain nano-dispersion system;

[0024] (2) Stand still at about 80°C for 30 minutes to make the bubbles in the nano-dispersion system disappear;

[0025] (3) Pour the nano-dispersion system obtained in (2) onto a clean glass plate while it is hot, and quickly scrape it evenly with a wet film preparation device to obtain a wet film;

[0026] (4) Immerse the glass plate together with the wet film in deionized water. After about 30 seconds, the yellow translucent film falls off automatically, and the original acidic film is obtained;

[0027] (5) Pull out the acidic original film, put into 10% NaOH solution or dilute ammonia water and soak for 24 hours, remove acidic substances such as methanesulfonic acid contained in the acidic original film, and obtain t...

Embodiment 2

[0031] Example 2: High temperature resistant BPO 4 -Preparation of ABPBI nanocomposite proton exchange membrane

[0032] (1) Weigh 34.0g ABPBI solution, add 0.20g BPO 4 and dispersant (PEG / SDBS / TBAB), grind for 2 hours to obtain nano-dispersion system;

[0033] (2) Stand still at about 80°C for 30 minutes to make the bubbles in the nano-dispersion system disappear;

[0034] (3) Pour the nano-dispersion system obtained in (2) onto a clean glass plate while it is hot, and quickly scrape it evenly with a wet film preparation device to obtain a wet film;

[0035] (4) Immerse the glass plate together with the wet film in deionized water. After about 30 seconds, the yellow translucent film falls off automatically, and the original acidic film is obtained;

[0036] (5) Pull out the acidic original film, put into 10% NaOH solution or dilute ammonia water and soak for 24 hours, remove acidic substances such as methanesulfonic acid contained in the acidic original film, and obtain t...

Embodiment 3

[0040] Example 3: High temperature resistant BPO 4 -Preparation of ABPBI nanocomposite proton exchange membrane

[0041] (1) Weigh 34.0g ABPBI solution, add 0.10g BPO 4 and dispersant (PEG / SDBS / TBAB), grind for 2 hours to obtain nano-dispersion system;

[0042] (2) Stand still at about 80°C for 30 minutes to make the bubbles in the nano-dispersion system disappear;

[0043] (3) Pour the nano-dispersion system obtained in (2) onto a clean glass plate while it is hot, and quickly scrape it evenly with a wet film preparation device to obtain a wet film;

[0044] (4) Immerse the glass plate together with the wet film in deionized water. After about 30 seconds, the yellow translucent film falls off automatically, and the original acidic film is obtained;

[0045] (5) Pull out the acidic original film, put into 10% NaOH solution or dilute ammonia water and soak for 24 hours, remove acidic substances such as methanesulfonic acid contained in the acidic original film, and obtain t...

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Abstract

The invention relates to preparation of a high-temperature-resistant BPO4-ABPBI (boron phosphate-poly(2,5-benzimidazole)) nanometer composite proton exchange membrane for a proton exchange membrane fuel cell. The preparation mainly comprises the steps of nanometer disperse system preparation, wet film preparation, demoulding, alkaline washing, water washing, acid leaching and the like. The high-temperature-resistant nanometer composite proton exchange membrane prepared by the invention has the advantages of high comprehensive performance, industrial scale production of raw materials, and low overall cost.

Description

technical field [0001] The invention relates to a high temperature resistant BPO used for fuel cells 4 -A preparation method of ABPBI nanocomposite proton exchange membrane. The invention belongs to the technical field of fuel cell proton exchange membrane preparation technology. Background technique [0002] A fuel cell is a high-efficiency continuous electrochemical power generation device that directly converts the chemical energy generated by the reaction of fuel and oxidant into electrical energy without burning. Because the fuel cell is not limited by the Carnot cycle, its theoretical and practical energy conversion efficiency is much higher than that of the heat engine. As an important type of fuel cell, in addition to high energy conversion efficiency, proton exchange membrane fuel cell (PEMFC) also has the advantages of fast start-up, no noise, no pollution, long life, and high specific power. The company attaches great importance to it and has become one of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/04C08K13/02C08K3/38C08J5/18H01M8/02H01M2/16H01M8/1041H01M8/1069
CPCY02E60/50Y02P70/50
Inventor 严六明冯庆霞陈晋张冬芳邸素清
Owner SHANGHAI UNIV
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