Process for electrolyzing preparing electrolyte of full vanadium ion flow battery

A liquid flow battery and vanadium ion technology, which is applied in the field of battery manufacturing, can solve the problems of complex vanadium battery assembly and formation procedures, shortened vanadium battery life, and impact on production efficiency, so as to be beneficial to large-scale production, avoid raw material waste, The effect of extending the service life

Inactive Publication Date: 2005-03-23
攀枝花钢铁有限责任公司钢铁研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to replace the positive electrode solution once and charge twice, which leads to complex assembly and formation procedures of the vanadium battery, and shortens the life of the vanadium battery. Limited by the charging conditions of the vanadium battery, it also directly leads to a long formation time and affects production efficiency.

Method used

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  • Process for electrolyzing preparing electrolyte of full vanadium ion flow battery

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] V 2 o 3 : TV63%

[0017] V 2 o 5 : Analytical pure

[0018] h 2 SO 4 : Analytical pure, d=1.84

[0019] Na 2 SO 4 : Analytical pure

[0020] Emulsifier OP

[0021] Production of electrolytic cell: frame plate made of plexiglass plate, Nafion proton exchange membrane after activation treatment is used as conductive diaphragm, cathode pool 50×50×20mm, anode pool 50×50×20mm.

[0022] Electrode production: 40×40×1.5mm lead plate.

[0023] Equipment and connection: DC regulated power supply, variable resistor, see the attached diagram for the connection diagram.

[0024] Model making of vanadium battery; plexiglass plate as frame plate, Nafion proton exchange membrane as conductive diaphragm, self-made carbon electrode. The size of the model is: 50×50×10mm.

[0025] Weigh 50 grams of V according to the proportion 2 o 3 , 30g V 2 o 5 , 300 grams of concentrated sulfuric acid, appropriate amount of distilled water and other raw materials, after the reaction, ...

Embodiment 2

[0027] V 2 o 3 : TV73%

[0028] V 2 o 5 : Analytical pure

[0029] h 2 SO 4 : Analytical pure, d=1.84

[0030] Na 2 SO 4 : Analytical pure

[0031] Emulsifier OP

[0032] Production of electrolytic cell: frame plate made of plexiglass plate, Nafion proton exchange membrane after activation treatment is used as conductive diaphragm, cathode pool 50×50×20mm, anode pool 50×50×20mm.

[0033] Electrode production: 40×40×1.5mm lead plate.

[0034] Equipment and connection: DC regulated power supply, variable resistor, see the attached diagram for the connection diagram.

[0035] Vanadium battery model making: plexiglass plate as frame plate, Nafion proton exchange membrane as conductive diaphragm, self-made carbon electrode. The size of the model is: 50×50×10mm.

[0036] Weigh 130 grams of V according to the ratio 2 o 3 , 70g V 2 o 5 , 450 grams of concentrated sulfuric acid, appropriate amount of distilled water and other raw materials, after the reaction, add 30 ...

Embodiment 3

[0038] V 2 o 3 : TV63%

[0039] V 2 o 5 : Analytical pure

[0040] h 2 SO 4 : Analytical pure, d=1.84

[0041] Na 2 SO 4 : Analytical pure

[0042] Emulsifier OP

[0043] Production of electrolytic cell: plexiglass plate to make frame plate, conductive diaphragm adopts activated Nafion proton exchange membrane, cathode cell 200×200×40mm, anode cell 2000×200×40mm.

[0044] Electrode production: 100×100×1.5mm lead plate.

[0045] Equipment and connection: DC regulated power supply, variable resistor, see the attached diagram for the connection diagram.

[0046] Vanadium battery model making: plexiglass plate as frame plate, Nafion proton exchange membrane as conductive diaphragm, self-made carbon electrode. The size of the model is: 50×50×10mm.

[0047] Weigh 100 grams of V according to the proportion 2 o 3 , 55 g V 2 o 5 , 400 grams of concentrated sulfuric acid, appropriate amount of distilled water and other raw materials, after the reaction, add 5 grams of Na...

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Abstract

The invention relates to the field of the cell manufacturing and especially relates to a method of preparing the electrolyte of the vanadium ion liquid cell, making the 1:1 thin vitriol from the thick vitriol, adding the trioxid bi-vanadium and then the five-trioxid bi-vanadium to get the vitriol oxide vanadium; adding the Na2SO4, emulsification agent OP and other additive, placing the vitriol oxide vanadium at the cathode of the electrolytic cell and the same ion intension at the anticathode and electrolyse, getting the vitriol electrolyte used for vitriol batteries which includes half quadrivalence vanadium and half tervalent vanadium. The invention simplyfy the equipment of vitriol batteries and chemical procedure, enhance the work efficiency, extend the use time of the functional materials of vitriol batteries, such as the electrode and the dissepiment, needn't change the electrolyte of the anode, avoid wasting raw material, avail the producing by large scale.

Description

Technical field: [0001] The invention relates to the field of battery manufacture, in particular to a method for preparing an electrolyte for an all-vanadium ion flow battery. Background technique: [0002] For all-vanadium ion flow batteries, vanadyl sulfate is mainly used as the active material of the battery. The preparation method is to pour an equal amount of vanadyl sulfate sulfuric acid solution into the positive and negative electrodes of the vanadium battery respectively, and under the charging conditions of the vanadium battery Charging, after fully charged, discharge all the positive electrode solution, replace it with an equal amount of vanadyl sulfate sulfuric acid solution and continue charging, after fully charged, it can be used like other rechargeable batteries. This method needs to replace the positive electrode solution once and charge twice, which leads to complex assembly and formation procedures of the vanadium battery, and shortens the life of the vana...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/00H01M10/08
CPCY02E60/126Y02E60/10
Inventor 李林德张波黄可龙刘素琴伍秋美周德壁常志峰陈立泉
Owner 攀枝花钢铁有限责任公司钢铁研究院
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