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Zinc-bromine flow battery anion exchange film

An anion exchange membrane and zinc-bromine flow battery technology, which is applied to battery electrodes, battery pack components, fuel cell components, etc., can solve the problems of expensive membranes and achieve high mechanical strength, high ion conductivity, high performance effect

Inactive Publication Date: 2012-11-21
JIANGSU OLITER ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, ion exchange membranes have greater resistance to bromine, which can reduce battery self-discharge, but this membrane is more expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0013] An anion exchange membrane for a zinc-bromine flow battery, the base membrane is made of polytetrafluoroethylene, and chloromethylated polysulfone, chloromethylated polyethersulfone, chloromethylated polyether ketone, or chloromethylated A high molecular polymer in polyimide is dissolved in organic solvents such as dimethyl sulfoxide, N-methylpyrrolidone, N,N-dimethylacetamide, N,N-dimethylformamide, etc. Thus forming a solution. The solution is dropped on the polytetrafluoroethylene base ...

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PUM

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Abstract

The invention discloses a zinc-bromine flow battery anion exchange film, which is a base film provided with a plurality of holes filled with quaternized chloromethylation high molecular polymer. Since the zinc-bromine flow battery anion exchange film is a composite anion exchange film based on polytef and the quanternized chloromethylation high molecular polymer, the film not only is provided with high mechanical intensity, but also has very high anion conductibility, so that high performance of a zinc-bromine battery is ensured; and besides, owing to low cost, industrialization probability of the zinc-bromine battery is improved.

Description

[0001] technical field [0002] The invention belongs to the technical field of zinc-bromine flow batteries, in particular to an anion exchange membrane in the zinc-bromine flow batteries. Background technique [0003] Zinc-bromine power batteries are mainly made of zinc-bromine compounds and carbon materials, which are characterized by fast charging, deep discharge, no need for undervoltage protection, battery reverse polarity resistance, safety and reliability, long cycle life, and no need for battery management systems. No pollution, low price, suitable for battery packs of buses, minibuses sightseeing cars, ferries and other vehicles. [0004] The bromine molecule of the zinc-bromine battery will diffuse to the cathode during the storage process of the battery, and react with metal zinc to form zinc bromide. When the battery is empty. Therefore, the development of low-cost, high-performance ion-exchange membranes is a prerequisite for the industrialization of zinc-brom...

Claims

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Application Information

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IPC IPC(8): H01M8/02H01M4/94H01M2/16
CPCY02E60/12Y02E60/50
Inventor 李明强袁曹勇严学庆
Owner JIANGSU OLITER ENERGY TECH