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Water-soluble organic couple redox flow battery

A liquid flow battery, water-soluble technology, applied in the direction of fuel cells, secondary batteries, battery electrodes, etc., to achieve the effect of eliminating the possibility of dendrites, low cost, and simple manufacturing process

Inactive Publication Date: 2011-04-27
NO 63971 TROOPS PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of flow batteries, organic substances have been used as ligands to modify the inorganic active couples. There has been no report on the direct use of water-soluble organic couples as active materials for flow batteries.

Method used

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  • Water-soluble organic couple redox flow battery
  • Water-soluble organic couple redox flow battery
  • Water-soluble organic couple redox flow battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] at 5cm 2 graphite felt for the positive electrode 7 catalytic electrodes, 50ml of 3M H 2 SO 4 The +0.5M ferro-titanium reagent solution is the anode electrolyte 12, wherein the ferro-titanium reagent is a water-soluble organic active material. at 5cm 2 Graphite felt as the negative electrode 4 catalytic electrodes, 50ml of 3M H 2 SO 4 +1.0M V 2 (SO 4 ) 3 The solution is negative electrode electrolyte 13, where V 3+ / V 2+ It is an inorganic water-soluble pair. The Nafion 117 cation exchange membrane is used as the diaphragm 8 between the positive electrode 7 and the negative electrode 4, and the magnetic circulation pump is used as the positive electrode infusion pump 10 and the negative electrode infusion pump 16, so that the positive electrode electrolyte 12 and the negative electrode electrolyte 13 are circulated through the positive electrode 7 and the negative electrode respectively. negative electrode 4 surface. The open circuit voltage of the battery is...

Embodiment 2

[0023] at 5cm 2 graphite felt for the positive electrode 7 catalytic electrodes, 50ml of 3M H 2 SO 4 +0.5M sodium hydroquinone sulfonate solution is the anode electrolyte 12, wherein sodium hydroquinone sulfonate is a water-soluble organic active substance. at 5cm 2 PbSO 4 / Pb lead-acid battery plate is the negative electrode 4, 50ml of 3M H 2 SO 4 The solution is the negative electrode electrolyte 13, in which the solid electrode pairs PbSO 4 / Pb is an active pair. The Nafion 117 cation exchange membrane is used as the diaphragm 8 between the positive electrode 7 and the negative electrode 4, and the magnetic circulation pump is used as the positive electrode infusion pump 10 and the negative electrode infusion pump 16, so that the positive electrode electrolyte 12 and the negative electrode electrolyte 13 are circulated through the positive electrode 7 and the negative electrode respectively. negative electrode 4 surface. The open circuit voltage of the battery is ab...

Embodiment 3

[0025] at 5cm 2 Graphite felt as the positive electrode 7 catalytic electrodes, 50ml of 3M H 2 SO 4 +1.0Ce 2 (SO 4 ) 3 The solution is the catholyte 12, where Ce 4+ / C 3+It is an inorganic water-soluble pair. at 5cm 2 Graphite felt as the negative electrode 4 catalytic electrodes, 50ml of 3M H 2 SO 4 +0.5M dihydroxyhydroquinone solution is the negative electrode electrolyte 13, wherein dihydroxyhydroquinone is a water-soluble organic active substance. The Nafion 117 cation exchange membrane is used as the diaphragm 8 between the positive electrode 7 and the negative electrode 4, and the magnetic circulation pump is used as the positive electrode infusion pump 10 and the negative electrode infusion pump 16, so that the positive electrode electrolyte 12 and the negative electrode electrolyte 13 are circulated through the positive electrode 7 and the negative electrode respectively. negative electrode 4 surface. The open circuit voltage of the battery is about 1.1V, at...

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Abstract

The invention relates to a water-soluble organic couple redox flow battery which comprises an anode, electrolyte thereof, a diaphragm thereof, a cathode and electrolyte thereof, wherein one of two active substances of the anode / cathode is a water-soluble organic couple, and the other one is an inorganic couple or organic couple; and the electrolyte of the anode / cathode is stored in an external storage tank, flows through the battery in a circulating way through a pump and undergoes oxidation / reduction reaction on the anode / cathode divided by the diaphragm to carry out the charging / discharging process. Organic couple materials are not limited by mining deposits, the charge capacity depends on the volume of the storage tank, the size of the battery can be singly designed according to the power requirement, and electrode potential and a reaction electron amount can be designed and controlled by organic molecules. Therefore, the redox flow battery has the advantages of rich raw materials, convenient preparation, high power conversion efficiency, environmental protection, safe use and the like and is suitable for scale electricity storage.

Description

technical field [0001] The invention relates to the principle and preparation of a water-soluble organic electro-liquid flow battery, which belongs to the field of chemical industry and can be widely used in non-grid-connected renewable energy power generation, large-scale energy storage in factories, mines, buildings, remote areas, etc., and peak shaving of power grids Fill the valley. Background technique [0002] Liquid flow batteries are developed from fuel cells. Since the concept was proposed in 1974, they have attracted widespread attention due to their many unique properties. Different from the solid-state active material contained in the anode and cathode of the usual battery, the high and low potential two oxidation-reduction couples used as the active material in the flow battery, two or one of them are dissolved in the liquid storage tank In the solution, the pump pushes the solution to flow through the battery, and oxidation and reduction reactions occur on the...

Claims

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Application Information

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IPC IPC(8): H01M8/18H01M10/36H01M10/40H01M8/24H01M4/02H01M4/60H01M8/2455
CPCY02E60/528Y02E60/12Y02E60/10Y02E60/50
Inventor 徐艳文越华程杰杨裕生曹高萍
Owner NO 63971 TROOPS PLA
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