A kind of preparation system and method of high-purity vanadium battery electrolyte

A technology for electrolyte preparation and pure vanadium battery, applied in the field of high-purity vanadium battery electrolyte preparation system, can solve the problem of hindering the good development of new energy industry, restricting the large-scale popularization and application of VRB, and high cost of high-purity vanadium battery electrolyte preparation. problems, to achieve the effects of controllable electrolyte quality, good economic efficiency and social benefits, low production energy consumption and low operating costs

Active Publication Date: 2018-07-03
INST OF PROCESS ENG CHINESE ACAD OF SCI
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Problems solved by technology

This makes the preparation cost of high-purity vanadium battery electrolyte too high, which seriously restricts the large-scale popularization and application of VRB, which also seriously hinders the good development of new energy industry

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  • A kind of preparation system and method of high-purity vanadium battery electrolyte

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[0041] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments of the invention. It should be noted that the examples are only used to illustrate the technical solution of the present invention, not to limit it. figure 1 It is a schematic diagram of a preparation system of a high-purity vanadium battery electrolyte of the present invention.

[0042] to combine figure 1 , the preparation system of the high-purity vanadium battery electrolyte used in this embodiment includes an industrial-grade vanadyl trichloride storage tank 1, a rectification purification device 2, an intermediate product distiller 3, a hydrolysis chlorine adjustment reaction kettle 4, and...

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Abstract

The present invention belongs to the fields of chemical engineering and materials. Specifically disclosed are a system and method for preparing a high-purity vanadium battery electrolyte-solution; vanadium oxytrichloride is taken as a starting material, and distilled and purified to obtain high-purity vanadium oxytrichloride having a purity of 4N or higher; the obtained vanadium oxytrichloride is hydrolyzed and the chlorine content thereof is controlled; further, sulfuric acid is added to prepare and obtain a high-purity vanadium-battery mixed sulfuric-acid / hydrochloric-acid electrolyte solution. The present invention has the advantages of being very adaptable, having a simple process, being clean and non-polluting, having low energy consumption in production and low costs in operation, and the quality of the electrolyte solution being controllable; the invention is suitable for use in the large-scale continuous production of high-purity vanadium batteries, and has good economic and social benefits.

Description

technical field [0001] The invention belongs to the fields of chemical industry and materials, and in particular relates to a preparation system and method of high-purity vanadium battery electrolyte. Background technique [0002] With the continuous innovation of energy technology, the existing energy structure dominated by fossil fuels will be gradually replaced by new energy sources such as solar energy and wind energy. Accordingly, large-scale energy storage technologies that adapt to the new energy structure will be widely used. Vanadium redox flow battery (VRB) will have a huge demand space in the future development of solar and wind power due to its advantages of large design flexibility, easy module combination, small installation site restrictions, and easy adjustment of storage scale. The active material of VRB-vanadium-containing electrolyte (acidic aqueous solution containing vanadium ions) is an important part of it. How to prepare an electrolyte with excellent ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/18
CPCH01M8/18Y02E60/50
Inventor 范川林朱庆山杨海涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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