CN103219538A - Preparation method of vanadium battery electrolyte - Google Patents
Preparation method of vanadium battery electrolyte Download PDFInfo
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- CN103219538A CN103219538A CN2013101130559A CN201310113055A CN103219538A CN 103219538 A CN103219538 A CN 103219538A CN 2013101130559 A CN2013101130559 A CN 2013101130559A CN 201310113055 A CN201310113055 A CN 201310113055A CN 103219538 A CN103219538 A CN 103219538A
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- sulfuric acid
- vanadium
- electrolyte
- preparation
- mixed solution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention provides a preparation method of vanadium battery electrolyte; the method comprises the following steps of: (1) dissolving VOSO4. 3.95H2O into distilled water; (2) adding a certain amount of concentrated sulfuric acid into the solution under the condition of stirring, and then controlling the volume to be constant to obtain mixed solution of vanadyl sulfate and sulfuric acid; and (3) adding hexadecyl trimethyl ammonium bromide which is taken as additive into the mixed solution to form the vanadium battery electrolyte. The hexadecyl trimethyl ammonium bromide which is taken as additive is added into the mixed solution, so that the vanadium battery electrolyte can be formed; and in the electrolyte, the quaternary ammonium head group of the hexadecyl trimethyl ammonium bromide micelle has action with pentavalent vanadium, and the further polymerization of the pentavalent vanadium is prevented, so that the crystallization of the pentavalent vanadium is inhibited, and the stability of the vanadium battery electrolyte is correspondingly improved.
Description
Technical field
The present invention relates to a kind of preparation method, relate in particular to a kind of preparation method that can improve the stability of electrolyte of vanadium redox battery.
Background technology
Vanadium cell has numerous advantages, and its energy size depends on electrolyte, by increasing the amount of electrolyte, just can reach the purpose that increases battery capacity, by changing electrolyte, just can realize the effect of momentary charge.Therefore, electrolyte is in important status in the research of vanadium cell, yet the pentavalent vanadium in the electrolyte of vanadium redox battery that existing method makes is easy to generate crystallization, influences the stability of electrolyte of vanadium redox battery.
Summary of the invention
The technical problem that the present invention mainly solves is that the stability of existing electrolyte of vanadium redox battery is not enough.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses a kind of preparation method of electrolyte of vanadium redox battery, comprising:
(1), with VOSO
43.95H
2O is dissolved in the distilled water;
(2), under condition of stirring, add a certain amount of concentrated sulfuric acid, constant volume then obtains the mixed solution of vanadic sulfate and sulfuric acid;
(3), in mixed solution, add softex kw as additive, the formation electrolyte of vanadium redox battery.
In a preferred embodiment of the present invention, described VOSO
43.95H
2The weight of O and the volume relationship of the concentrated sulfuric acid are 25g:200mL.
In a preferred embodiment of the present invention, the volume ratio of the mixed solution behind the constant volume and the concentrated sulfuric acid of adding is 1:6.
In a preferred embodiment of the present invention, add the softex kw and the concentrated sulfuric acid molar concentration rate be 1:3200.
Preparation method of the present invention adds softex kw as additive in mixed solution, form electrolyte of vanadium redox battery, the quaternary ammonium head group of the softex kw micella in the electrolyte and the effect of pentavalent vanadium, stop the further polymerization of pentavalent vanadium, can suppress the crystallization of pentavalent vanadium, thus the corresponding stability that has improved electrolyte of vanadium redox battery.
Embodiment
To the technical scheme in the embodiment of the invention be clearly and completely described below, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
The embodiment of the invention discloses a kind of preparation method of electrolyte of vanadium redox battery, comprising:
(1), with VOSO
43.95H
2O is dissolved in the distilled water;
(2), under condition of stirring, add a certain amount of concentrated sulfuric acid, constant volume then obtains the mixed solution of vanadic sulfate and sulfuric acid;
(3), in mixed solution, add softex kw as additive, the formation electrolyte of vanadium redox battery.
Wherein, described VOSO
43.95H
2The weight of O and the volume relationship of the concentrated sulfuric acid are 25g:200mL, in a preferred embodiment of the present invention, the volume ratio of the mixed solution behind the constant volume and the concentrated sulfuric acid of adding is 1:6, add the softex kw and the concentrated sulfuric acid molar concentration rate be 1:3200.
Preparation method of the present invention adds softex kw as additive in mixed solution, form electrolyte of vanadium redox battery, the quaternary ammonium head group of the softex kw micella in the electrolyte and the effect of pentavalent vanadium, stop the further polymerization of pentavalent vanadium, can suppress the crystallization of pentavalent vanadium, thus the corresponding stability that has improved electrolyte of vanadium redox battery.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
1. the preparation method of an electrolyte of vanadium redox battery is characterized in that, comprising:
(1), with VOSO
43.95H
2O is dissolved in the distilled water;
(2), under condition of stirring, add a certain amount of concentrated sulfuric acid, constant volume then obtains the mixed solution of vanadic sulfate and sulfuric acid;
(3), in mixed solution, add softex kw as additive, the formation electrolyte of vanadium redox battery.
2. preparation method according to claim 1 is characterized in that, described VOSO
43.95H
2The weight of O and the volume relationship of the concentrated sulfuric acid are 25g:200mL.
3. preparation method according to claim 2 is characterized in that, the volume ratio of the mixed solution behind the constant volume and the concentrated sulfuric acid of adding is 1:6.
4. preparation method according to claim 2 is characterized in that, add the softex kw and the concentrated sulfuric acid molar concentration rate be 1:3200.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101130559A CN103219538A (en) | 2013-04-02 | 2013-04-02 | Preparation method of vanadium battery electrolyte |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101130559A CN103219538A (en) | 2013-04-02 | 2013-04-02 | Preparation method of vanadium battery electrolyte |
Publications (1)
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| CN103219538A true CN103219538A (en) | 2013-07-24 |
Family
ID=48817140
Family Applications (1)
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|---|---|---|---|
| CN2013101130559A Pending CN103219538A (en) | 2013-04-02 | 2013-04-02 | Preparation method of vanadium battery electrolyte |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134122A (en) * | 2018-01-17 | 2018-06-08 | 大连博融新材料有限公司 | Removable, modularization, integrated V electrolyte process units and method |
| CN111180776A (en) * | 2018-11-13 | 2020-05-19 | 陕西华银科技股份有限公司 | Novel high-stability electrolyte and application thereof |
| CN112599827A (en) * | 2020-12-08 | 2021-04-02 | 贵州聚能世纪科技有限责任公司 | Electrolyte additive for improving low-temperature stability of vanadium battery and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110481A (en) * | 2006-07-19 | 2008-01-23 | 中国科学院金属研究所 | Method for preparing all vanadium ion redox flow battery electrolyte |
| CN101714642A (en) * | 2009-12-25 | 2010-05-26 | 中南大学 | Vanadium battery electrolyte containing additive and vanadium battery |
| CN102110836A (en) * | 2011-01-26 | 2011-06-29 | 上海林洋储能科技有限公司 | High-reliability vanadium ion electrolyte |
-
2013
- 2013-04-02 CN CN2013101130559A patent/CN103219538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110481A (en) * | 2006-07-19 | 2008-01-23 | 中国科学院金属研究所 | Method for preparing all vanadium ion redox flow battery electrolyte |
| CN101714642A (en) * | 2009-12-25 | 2010-05-26 | 中南大学 | Vanadium battery electrolyte containing additive and vanadium battery |
| CN102110836A (en) * | 2011-01-26 | 2011-06-29 | 上海林洋储能科技有限公司 | High-reliability vanadium ion electrolyte |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134122A (en) * | 2018-01-17 | 2018-06-08 | 大连博融新材料有限公司 | Removable, modularization, integrated V electrolyte process units and method |
| CN111180776A (en) * | 2018-11-13 | 2020-05-19 | 陕西华银科技股份有限公司 | Novel high-stability electrolyte and application thereof |
| CN112599827A (en) * | 2020-12-08 | 2021-04-02 | 贵州聚能世纪科技有限责任公司 | Electrolyte additive for improving low-temperature stability of vanadium battery and preparation method thereof |
| CN112599827B (en) * | 2020-12-08 | 2021-11-26 | 贵州聚能世纪科技有限责任公司 | Electrolyte additive for improving low-temperature stability of vanadium battery and preparation method thereof |
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Owner name: PU NING Free format text: FORMER OWNER: HU GUOLIANG Effective date: 20140416 |
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Free format text: CORRECT: ADDRESS; FROM: 528401 ZHONGSHAN, GUANGDONG PROVINCE TO: 518052 SHENZHEN, GUANGDONG PROVINCE |
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Effective date of registration: 20140416 Address after: 518052 Guangdong city of Shenzhen province Nanshan District Nanshan digital and cultural industry base east tower room 407 Applicant after: Pu Ning Address before: 528401 Guangdong city of Zhongshan province Xiyuan Fuhua Road Plaza and pavilion 18 buildings D Applicant before: Hu Guoliang |
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Application publication date: 20130724 |