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Integrated zinc-bromine flow battery and assembling method thereof

A zinc-bromine flow battery and battery component technology, which is applied in the field of flow batteries and zinc-bromine flow batteries, can solve the problems of battery self-discharge and increase battery cost, etc.

Inactive Publication Date: 2018-04-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is the problem of battery self-discharge caused by the direct reaction of bromine and zinc. In addition, due to the strong corrosion of bromine, higher requirements are put forward for the battery sealing gasket, thereby increasing the battery cost.

Method used

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  • Integrated zinc-bromine flow battery and assembling method thereof
  • Integrated zinc-bromine flow battery and assembling method thereof
  • Integrated zinc-bromine flow battery and assembling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Battery assembly:

[0025] Both the positive and negative electrodes use 6x6x0.5cm carbon felt with a pore size of 50nm, and 60ml of 2MZnBr is prepared for each of the positive and negative electrodes. 2 The electrolyte of +3MKCl+0.4MMEP is ready for use. The single battery assembly process is as follows:

[0026] The surrounding edges of the surface of the positive electrode frame, the surrounding edges of the positive electrode current collector surface corresponding to the surrounding edges of the positive electrode frame surface, the surrounding edges of the surface of the PE porous membrane corresponding to the surrounding edges of the positive electrode frame surface, and the surrounding edges of the positive electrode frame surface. The surrounding edges of the surface of the PE porous film and the corresponding negative electrode frame surface, and the surrounding edges of the negative electrode frame surface and the corresponding negative electrode current col...

Embodiment 2

[0033] Battery assembly:

[0034] Both the positive and negative electrodes use 6x6x0.5cm carbon felt with a pore size of 50nm, and 60ml of 2MZnBr is prepared for each of the positive and negative electrodes. 2 The electrolyte of +3MKCl+0.4MMEP is ready for use. The stack assembly process is as follows:

[0035] The surrounding edges of the surface of the positive electrode frame, the surrounding edges of the positive electrode current collector surface corresponding to the surrounding edges of the positive electrode frame surface, the surrounding edges of the surface of the PE porous membrane corresponding to the surrounding edges of the positive electrode frame surface, and the surrounding edges of the positive electrode frame surface. The surrounding edges of the surface of the PE porous film and the corresponding negative electrode frame surface, and the surrounding edges of the negative electrode frame surface and the corresponding negative electrode current collector su...

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Abstract

The invention relates to an integrated zinc-bromine flow battery and an assembling method thereof. The battery is a single battery or a stack. The single battery includes a positive end plate, a battery assembly and a negative end plate. The stack includes a positive end plate, two or more battery assemblies connected in series and a negative end plate. The battery assembly comprises a positive electrode current collector, a positive electrode with an electrode frame, a diaphragm, a negative electrode with an electrode frame and a negative electrode current collector and the above parts are orderly stacked. A hot-melt adhesive sealing layer is arranged between any adjacent stacked battery assemblies and hot-melt adhesive sealing is used as a battery sealing method. The battery utilizes hot-melt adhesive sealing. Through combination of hot pressing and cold pressing, the integrated zinc-bromine flow battery is assembled. The integrated zinc-bromine flow battery assembled through hot-melt adhesive sealing is free of a sealing pad in battery assembling, does not reduce battery performances and greatly reduces the zinc-bromine flow battery cost.

Description

technical field [0001] The invention relates to the technical field of flow batteries, in particular to the field of zinc-bromine flow batteries. technical background [0002] At present, with the increasingly tight supply of fossil energy, the development and utilization of renewable energy such as wind energy and solar energy has become the focus of attention of countries all over the world. However, the discontinuous and unstable characteristics of wind energy and solar energy will impact the power grid and affect the stability of power supply. In order to ensure the stability of the power grid, the renewable energy generation process must be accompanied by energy storage technology. Energy storage technology has also become a key technology for renewable energy grid-connected power generation. Energy storage technologies are mainly divided into two categories: physical energy storage and chemical energy storage. Among them, redox flow batteries in chemical energy storag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/18H01M8/24H01M8/2465H01M8/0273H01M8/0276
CPCH01M8/0273H01M8/0276H01M8/188H01M8/24H01M8/2465Y02E60/50
Inventor 许鹏程张华民李先锋赖勤志
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI