Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyphenylene oxide anion exchange membrane for alkaline membrane fuel cells

An anion exchange membrane and fuel cell technology, which is applied in the field of polyphenylene ether anion exchange membrane and its preparation, can solve the problem of insufficient mechanical properties to meet the normal operation of the fuel cell, and achieves a simple and easy membrane preparation process, low cost and high performance. The effect of ion exchange capacity

Inactive Publication Date: 2014-11-19
BEIJING UNIV OF CHEM TECH
View PDF3 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(Yan XM.et al.Int J Hydrogen Energy, 2012,37:5216-5224) reported that a new basic membrane was synthesized by grafting polyaryl ether sulfone with imidazole, and obtained a higher conductivity (84mS cm -1 ), but the mechanical properties of the membrane are insufficient for the normal operation of the fuel cell

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyphenylene oxide anion exchange membrane for alkaline membrane fuel cells
  • Polyphenylene oxide anion exchange membrane for alkaline membrane fuel cells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Dissolve 1.00g of BPPO in N-methylpyrrolidone, stir magnetically, and form a homogeneous solution, then add 0.1-50% (percentage of substance) of N,N of BPPO structural units (preferably 5-20%) ,N',N'-Tetramethyl-1,6-hexanediamine (TMHDA), heated at 50°C for 12h, and the N-methylpyrrolidone solution of partially cross-linked PPO obtained by TMHDA is denoted as T-PPO-I .

[0034] In the prepared T-PPO-I solution, add N-methylimidazole in a ratio of 1:1 to the amount of BPPO structural unit substance, react, the preferred reaction temperature is from room temperature to 100°C, and the reaction time is preferably 10min-2h, to obtain The solution is denoted as T-PPO-Im-I.

[0035]The prepared T-PPO-Im-I solution was placed in a flat-bottomed glass dish, dried to obtain a film, and soaked in 1molL at 20°C -1 NaOH solution, the immersion time is preferably 5-60h, after washing with deionized water, an alkaline T-PPO-Im-I membrane is obtained.

[0036] figure 1 It is the FT...

Embodiment 2

[0039] Dissolve 1.00g of BPPO in N-methylpyrrolidone, stir magnetically, and form a homogeneous solution, then add 0.1-50% (percentage of substance) of N,N of BPPO structural units (preferably 5-20%) ,N',N'-Tetramethyl-1,6-hexanediamine (TMHDA), heating reaction at 50°C, the reaction time is preferably 10-15h, and the obtained N-methylpyrrolidone solution of TMHDA partially cross-linked PPO, Recorded as T-PPO-II.

[0040] In the prepared T-PPO-II solution, add N-methylimidazole in a ratio of 1:1 to the amount of BPPO structural unit substance, react, preferably the reaction temperature is from room temperature to 100°C, and the reaction time is preferably 10min-2h, to obtain The solution is denoted as T-PPO-Im-II.

[0041] The prepared T-PPO-Im-II solution was placed in a flat-bottomed glass dish, dried to obtain a film, and soaked in 1mol L -1 NaOH solution, the immersion time is preferably 5-60h, after washing with deionized water, an alkaline T-PPO-Im-II membrane is obtai...

Embodiment 3

[0044] Dissolve 1.00g of BPPO in N-methylpyrrolidone, stir magnetically, and form a homogeneous solution, then add 0.1-50% (percentage of substance) of N,N of BPPO structural units (preferably 5-20%) , N',N'-tetramethyl-1,6-hexanediamine (TMHDA), heating reaction, the reaction temperature is preferably 40-60 ° C, the time is preferably 10-15h, the obtained TMHDA partially cross-linked PPO N -Methylpyrrolidone solution, denoted as T-PPO-III.

[0045] In the prepared T-PPO-III solution, add N-methylimidazole in a ratio of 1:1 to the amount of BPPO structural unit substance, and react, preferably the reaction temperature is from room temperature to 100°C, and the reaction time is preferably 10min-2h, to obtain The solution is denoted as T-PPO-Im-III.

[0046] The prepared T-PPO-Im-III solution was placed in a flat-bottomed glass dish, dried to obtain a film, and soaked in 1mol L -1 NaOH solution, the immersion time is preferably 5-60h, after washing with deionized water, an alk...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention relates to the preparation of key materials of fuel cells, and specifically relates to an anion exchange membrane for alkaline membrane fuel cells and a preparation method thereof. The method comprises the following steps: by taking bromo-polyphenylene oxide (BPPO) as a basic structure and taking a C1-C20 alkyl chain or C2-C20 ether chain compound with N, N-dimethyl amines at the two ends as a crosslinking agent, carrying out a crosslinking reaction between the BPPO and the crosslinking agent, and controlling the rate of charge, so that the BPPO is excessive; reacting imidazole of which the N0.1 position located N atom is provided with C1-C20 alkyl chains or C2-C20 ether chains by using a crosslinked polyphenyl ether so as to obtain a novel crosslinked imidazole polyphenyl ether resin, and forming a membrane through a tape casting method; carrying out alkali treatment on the obtained membrane so as to obtain an anion exchange membrane. The anion exchange membrane disclosed by the invention is simple in preparation process and low in cost, and the prepared anion exchange membrane is high in electrical conductivity and strong in stability, and suitable for being applied in the aspect of alkaline fuel cells.

Description

Technical field: [0001] The invention relates to a polyphenylene ether anion exchange membrane for an alkaline membrane fuel cell and a preparation method thereof. Background technique: [0002] Fuel cells, as a clean and renewable energy source, have attracted extensive attention in recent years due to the growing pollution problem and the overuse of fossil energy. As a new type of fuel cell, alkaline membrane fuel cell has obvious advantages in many aspects. For example, non-platinum materials can be used as catalysts in alkaline membrane fuel cells, which avoids the use of platinum-containing catalysts and reduces manufacturing costs; the recycling of water in alkaline membrane fuel cells effectively avoids the problem of water accumulation in proton exchange membrane fuel cells ; The good chemical stability of the alkaline membrane provides a guarantee for the service life of the battery. Therefore, alkaline membrane fuel cells have become one of the new research hotsp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08J5/22C08J3/24C08L71/12C08K5/17C08G65/48H01M8/10
CPCY02E60/50
Inventor 韩克飞杨起涛汪中明
Owner BEIJING UNIV OF CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com