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Preparation of three-dimensional resin solution for alkaline anion exchange membrane

A technology of three-dimensional resin and alkaline anion, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problem of less attention on alkaline anion exchange resins, and achieve the effect of avoiding insoluble or insoluble

Active Publication Date: 2016-06-22
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the current research on AEMFC is still mainly focused on the research and development of basic anion exchange membranes, less attention has been paid to basic anion exchange resins.

Method used

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  • Preparation of three-dimensional resin solution for alkaline anion exchange membrane
  • Preparation of three-dimensional resin solution for alkaline anion exchange membrane
  • Preparation of three-dimensional resin solution for alkaline anion exchange membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dissolve 1 weight unit of styrene-containing 30% SEBS triblock copolymer in 20 weight units of chloroform solvent, add 1 weight unit of anhydrous zinc chloride, and then add 15 weight units of 1,4-dichloromethane Oxybutane, stirred and reacted at 50°C for 4 hours, poured the reaction solution into ethanol, filtered, and dried to obtain a chloromethylated polymer product, and dissolved the chloromethylated polymer in 1 : in 0.5 THF / isopropanol mixed solvent, then add 1 weight unit of tripropylamine, stir and react at 40°C for 12h to obtain 5wt% Cl - Type anion exchange resin solution (SEBS-Ionomer-1).

[0022] The ion conductivity of this anion exchange resin was 28.2 mS / cm at 30°C.

[0023] The resin is used to prepare a thin-layer film-coated electrode (CCM), and the CCM is soaked in a 1M potassium hydroxide solution for alkalization for 10 hours to obtain OH - Type CCM electrode, the performance of the electrode after assembling a single cell is as follows figure 1...

Embodiment 2

[0025] Dissolve 1 weight unit of styrene-containing 35% SEBS triblock copolymer in 50 weight units of chloroform solvent, add 1.5 weight units of anhydrous zinc chloride, and then add 25 weight units of 1,4-dichloromethane Oxybutane, stirred and reacted at 60°C for 6 hours, poured the reaction solution into ethanol, filtered, and dried to obtain a chloromethylated polymer product, and dissolved the chloromethylated polymer in 1 : in 0.7 tetrahydrofuran / ethanol mixed solvent, then add 1 weight unit of tributylamine, stir and react at 55°C for 15h, obtain 5wt% Cl - Type anion exchange resin solution (SEBS-Ionomer-2).

[0026] The ion conductivity of this anion exchange resin was 29.3 mS / cm at 30°C.

[0027] Use this resin to prepare CCM, soak CCM in 1M potassium hydroxide solution for alkalinization for 10h, and obtain OH - Type CCM electrode, the performance of the electrode after assembling a single cell is as follows figure 2 As shown, its peak power density is 278mW / cm ...

Embodiment 3

[0029] Dissolve 1 weight unit of styrene-containing 40% SEBS triblock copolymer in 150 weight units of chloroform solvent, add 2 weight units of anhydrous tin chloride, and then add 20 weight units of 1,4-dichloromethane Oxybutane, stirred and reacted at 45°C for 10 hours, poured the reaction solution into ethanol, filtered, and dried to obtain the chloromethylated polymer product, and dissolved the chloromethylated polymer at 25°C in 1 : in 0.8 THF / n-propanol mixed solvent, then add 1 weight unit of triethylamine, stir and react at 40°C for 20h, obtain 5wt% Cl - Type anion exchange resin solution (SEBS-Ionomer-3).

[0030] The ion conductivity of this anion exchange resin was 29.6 mS / cm at 30°C.

[0031] Use this resin to prepare CCM, soak CCM in 1M potassium hydroxide solution for alkalinization for 10h, and obtain OH - Type CCM electrode, the performance of the electrode after assembling a single cell is as follows image 3 As shown, the peak power density is 301mW / cm 2...

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Abstract

The invention relates to an alkaline anion exchange membrane fuel cell material, in particular to a preparation method of a three-dimensional resin solution for an alkaline anion exchange membrane fuel cell. The method comprises the steps of chloromethylation and quaternization of a polymer and is characterized in that chloromethylation reaction is carried out on a styrenic block copolymer by using lewis acid and a chloromethylation reagent, and then the chloromethylation polymer is dissolved for quaternization reaction to obtain the three-dimensional resin solution containing Cl-. When the three-dimensional resin prepared according to the preparation method is used in the alkaline anion exchange membrane fuel cell, the peak power density of the battery reaches 314mW / cm<2>.

Description

technical field [0001] The invention relates to an alkaline anion exchange membrane fuel cell material, in particular to the preparation of a three-dimensional resin solution for an alkaline anion exchange membrane fuel cell. Background technique [0002] In recent years, research on alkaline anion-exchange membrane fuel cells (AEMFCs) has shown an upward trend. The membrane electrode is the core component of the fuel cell, and the three-phase interface in the membrane electrode is the key to determining the reaction speed of the fuel cell. OH - H + The conduction of the three-dimensional resin is slow, and the basic three-dimensional resin is the key material for the preparation of the membrane electrode. Therefore, the requirements for the three-dimensional resin are as follows: high ion conductivity, low swelling degree, and good performance under alkaline conditions. stability, while being able to dissolve in low boiling point solvents. AEMFC to H 2 When working for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/88
CPCY02E60/50
Inventor 俞红梅刘艳喜贾佳高学强邵志刚衣宝廉
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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