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Vanadium battery electrolyte containing additive and vanadium battery

A vanadium battery and additive technology, applied in secondary batteries, regenerative fuel cells, circuits, etc., can solve the problem of not substantially improving the electrochemical reactivity of the electrolyte, and achieve the effect of improving the electrochemical reactivity

Inactive Publication Date: 2010-05-26
CENT SOUTH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese invention application No. 200510075608 discloses an electrolyte, which contains additives such as sodium sulfate and sodium pyrophosphate, but these additives only play a role in improving the stability of the electrolyte, and do not substantially improve the electrolyte on the carbon electrode. electrochemical reactivity

Method used

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  • Vanadium battery electrolyte containing additive and vanadium battery
  • Vanadium battery electrolyte containing additive and vanadium battery
  • Vanadium battery electrolyte containing additive and vanadium battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] To 120ml 1.5M VOSO 4 and 3.0M H 2 SO 4 1ml of ethanol and 0.01g of 2-mercaptobenzothiazole were added to the formed solution to obtain a positive electrode electrolyte, and 60ml of the blank electrolyte was used as the negative electrode electrolyte. 30cm 2 The dynamic battery of the battery 1 is obtained.

Embodiment 2

[0034] To 120ml 1.5M VOSO 4 and 3.0M H 2 SO 4 Add 1ml of ethanol and 0.1g of diphenylguanidine to the formed solution to prepare the positive electrode electrolyte, and use 60ml of the blank electrolyte as the negative electrode electrolyte. 2 The dynamic battery of , get battery 3.

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PUM

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Abstract

The invention provides a vanadium battery positive electrode electrolyte which comprises VOSO4 and H2SO4. The vanadium battery anode electrolyte is characterized by also comprising an additive selected from a group comprising free carbamidine, thiazole and sulfonamide. The anode electrolyte can obviously improve the reactive activity of a positive electrode of the vanadium battery.

Description

technical field [0001] The invention relates to the field of energy storage liquid flow batteries, and more specifically relates to electrolytes for vanadium batteries. Background technique [0002] All vanadium redox flow battery (VRB) has many advantages such as long service life, flexible charging and discharging methods, high current deep charging and discharging, no cross pollution and energy loss, etc., and is considered to be the most promising green battery. Energy storage batteries, all-vanadium redox flow batteries have been extensively studied. [0003] In the liquid flow battery system, the electrolyte is the medium through which charges are transferred between the two electrodes in the form of ions or ion associations. The active material is the vanadium solution of V(V) and V(IV) on the positive pole, and V(III) on the negative pole. and V(II) vanadium solution, the battery stores and releases energy through changes in the valence state of vanadium ions. [0...

Claims

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Application Information

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IPC IPC(8): H01M8/18H01M10/38
CPCY02E60/12Y02E60/528Y02E60/10Y02E60/50Y02P70/50
Inventor 刘素琴吴雪文张庆华黄可龙李虹云刘维维仲晓玲覃定员李茜
Owner CENT SOUTH UNIV
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