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A kind of alkaline hydroxyphenazine organic liquid flow battery and its preparation method

A technology of hydroxyphenazine and liquid flow battery, which is applied in the field of electrochemical energy storage, can solve the problem of high decay rate of the negative electrode, and achieve the effect of good voltage adjustability

Active Publication Date: 2022-06-21
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of this application is to provide an alkaline hydroxyphenazine organic liquid flow battery and its preparation method to solve the problem of high decay rate of the existing negative electrode

Method used

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  • A kind of alkaline hydroxyphenazine organic liquid flow battery and its preparation method
  • A kind of alkaline hydroxyphenazine organic liquid flow battery and its preparation method
  • A kind of alkaline hydroxyphenazine organic liquid flow battery and its preparation method

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Embodiment 1

[0045] An alkaline hydroxyphenazine organic liquid flow battery, the preparation method of which is as follows:

[0046] like Figure 1-4 As shown, the preparation of hydroxyphenazine is as follows:

[0047] The benzoquinone and its derivatives and o-phenylenediamine are reacted with absolute ethanol as a solvent in a low temperature environment for 2-12 hours. After the reaction, a large amount of water is added for filtration, and the filter cake is collected and dried to obtain HP and its derivatives.

[0048]The o-phenylenediamine and its derivatives are reacted with ammonium persulfate as a catalyst and water as a solvent for 12-48 h, after the reaction is completed, an alkali solution is added for filtration, the filtrate is collected, and the pH of the filtrate is adjusted so that the AHP and its derivatives in the filtrate are as After the solid is precipitated, suction filtration, the filter cake is collected, and then dried to obtain AHP and its derivatives.

[004...

Embodiment 2

[0061] An alkaline hydroxyphenazine organic liquid flow battery, the preparation method of which is as follows:

[0062] The preparation of hydroxyphenazine is as follows:

[0063] The benzoquinone and its derivatives and o-phenylenediamine were reacted with absolute ethanol as a solvent in a low temperature environment for 8 hours. After the reaction, a large amount of water was added for filtration, and the filter cake was collected and dried to obtain HP and its derivatives.

[0064] The o-phenylenediamine and its derivatives are reacted with ammonium persulfate as a catalyst and water as a solvent for 24 hours. After the reaction is completed, an alkaline solution is added for filtration. After suction filtration, the filter cake is collected, and then dried to obtain AHP and its derivatives.

[0065] 2,5-dihydroxybenzoquinone and its derivatives and o-phenylenediamine and its derivatives are refluxed in an aqueous solution for 18 hours. After the reaction is completed, w...

Embodiment 3

[0072] An alkaline hydroxyphenazine organic liquid flow battery, the preparation method of which is as follows:

[0073] The preparation of hydroxyphenazine is as follows:

[0074] The benzoquinone and its derivatives and o-phenylenediamine were reacted with absolute ethanol as a solvent in a low temperature environment for 10 hours. After the reaction, a large amount of water was added for filtration, and the filter cake was collected and dried to obtain HP and its derivatives.

[0075] The o-phenylenediamine and its derivatives are reacted with ammonium persulfate as a catalyst and water as a solvent for 20 hours. After the reaction is completed, an alkali solution is added for filtration, the filtrate is collected, and the pH of the filtrate is adjusted so that AHP and its derivatives in the filtrate are precipitated as solid After suction filtration, the filter cake is collected, and then dried to obtain AHP and its derivatives.

[0076] 2,5-dihydroxybenzoquinone and its ...

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Abstract

The present application discloses an alkaline hydroxyphenazine-based organic flow battery and a preparation method thereof, comprising the following steps: neutralizing hydroxyphenazines substituted with different functional groups with an alkali, and then dissolving them in an alkaline solution as a negative electrode electrolyte; Potassium ferrocyanide is dissolved in alkali as the positive electrolyte; the positive electrolyte and the negative electrolyte are respectively packed in the positive and negative electrolyte tanks to assemble the battery. The present application solves the problem of high decay rate of existing negative electrodes.

Description

technical field [0001] The application belongs to the field of electrochemical energy storage, and relates to an alkaline hydroxyphenazine organic liquid flow battery and a preparation method. Background technique [0002] At present, the energy sources used in the world are mainly thermal power plants and nuclear power plants. The output power converted by these power stations is as high as 1GW, but it still cannot meet the demand. Since the Industrial Revolution in the 19th century, fossil energy has been exploited and consumed on a large scale, causing CO 2 The concentration has increased from 280ppm to over 400ppm today, and the resulting greenhouse effect has caused serious ecological problems. Nuclear power plants have a good effect on alleviating the greenhouse effect, but the nuclear waste produced is also a great test for human society. In fact, in addition to fossil energy and nuclear energy, geothermal energy, solar energy, hydrogen energy, wind energy and othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/86H01M8/083H01M8/18
CPCH01M8/083H01M8/188H01M4/8647H01M2004/8684H01M2300/0091H01M2300/0014Y02E60/50
Inventor 金钟王财兴余波
Owner NANJING UNIV
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