CN103199292A - Preparation method of vanadium battery negative electrode solution - Google Patents
Preparation method of vanadium battery negative electrode solution Download PDFInfo
- Publication number
- CN103199292A CN103199292A CN2013101096280A CN201310109628A CN103199292A CN 103199292 A CN103199292 A CN 103199292A CN 2013101096280 A CN2013101096280 A CN 2013101096280A CN 201310109628 A CN201310109628 A CN 201310109628A CN 103199292 A CN103199292 A CN 103199292A
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- CN
- China
- Prior art keywords
- vanadium
- preparation
- negative electrode
- negative pole
- battery negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 29
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 33
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 229910001456 vanadium ion Inorganic materials 0.000 claims abstract description 12
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 11
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910021541 Vanadium(III) oxide Inorganic materials 0.000 claims abstract description 8
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- UUUGYDOQQLOJQA-UHFFFAOYSA-L vanadyl sulfate Chemical compound [V+2]=O.[O-]S([O-])(=O)=O UUUGYDOQQLOJQA-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000009835 boiling Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229910001935 vanadium oxide Inorganic materials 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 abstract description 3
- 229940041260 vanadyl sulfate Drugs 0.000 abstract 2
- 229910000352 vanadyl sulfate Inorganic materials 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- 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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- Fuel Cell (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention provides a preparation method of a vanadium battery negative electrode solution. The preparation method comprises the following steps of: (1) mixing vanadic oxide, oxalic acid and sulfuric acid in a ratio; (2) adding sulfuric acid to the mixture obtained in the step (1), heating so that the vanadic oxide is fully dissolved, and boiling for 45-60 minutes, to obtain a vanadyl sulfate solution; (3) electrifying the vanadyl sulfate solution to remove excessive oxalic acid and obtain a mixture of trivalent vanadium ions and bivalent vanadium ions; (4) adding an appropriate amount of bivalent vanadium oxide electrolyte to the mixture obtained in the step (3) to remove the bivalent vanadium ions and obtain the vanadium battery negative electrode solution; and (5) adding toluene sulfonic acid to the vanadium battery negative electrode solution as the catalyst. The preparation method has the advantages that through adding the toluene sulfonic acid to the vanadium battery negative electrode solution as the catalyst, the reversibility of the electrode process is improved, the electrochemical polarization is reduced, the vanadium battery energy efficiency is increased, and the viscosity of the negative electrode solution is reduced.
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 vanadium cell negative pole liquid of vanadium cell energy efficiency.
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, and wherein, existing negative pole liquid is not made gratifying contribution for promoting the vanadium cell energy efficiency.
Summary of the invention
The technical problem that the present invention mainly solves is that existing negative pole liquid influences the lifting of vanadium cell energy efficiency.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses a kind of preparation method of vanadium cell negative pole liquid, comprising:
(1), vanadic oxide, oxalic acid and sulfuric acid are mixed in proportion;
(2), in the mixture of step (1), add sulfuric acid, heating makes vanadic oxide dissolve fully, and boils 45-60 minute, obtains vanadic sulfate solution;
(3), to switch on away wherein excessive oxalic acid of vanadic sulfate solution, and obtain the mixture of trivalent vanadium ion and divalent vanadium ion;
(4), in the mixture of step (3), add an amount of divalence vanadium oxide electrolyte to remove divalent vanadium ion, obtain vanadium cell negative pole liquid;
(5), in vanadium cell negative pole liquid, add toluenesulfonic acid as catalyst.
In a preferred embodiment of the present invention, the oxalic acid excessive 12% in the step (1).
In a preferred embodiment of the present invention, the sulfuric acid concentration that adds in the step (2) is 6mol/L.
In a preferred embodiment of the present invention, the boiling time in the step (2) is 50 minutes.
In a preferred embodiment of the present invention, also be included in step (5) back and in vanadium cell negative pole liquid, add conducting medium.
Preparation method of the present invention adds toluenesulfonic acid as catalyst in vanadium cell negative pole liquid, improve the invertibity of electrode process, reduces electrochemical polarization, improves the vanadium cell energy efficiency, reduces the viscosity of negative pole liquid.
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 obtain under the creative work prerequisite.
The embodiment of the invention discloses a kind of preparation method of vanadium cell negative pole liquid, comprising:
(1), vanadic oxide, oxalic acid and sulfuric acid are mixed in proportion;
(2), in the mixture of step (1), add sulfuric acid, heating makes vanadic oxide dissolve fully, and boils 45-60 minute, obtains vanadic sulfate solution;
(3), to switch on away wherein excessive oxalic acid of vanadic sulfate solution, and obtain the mixture of trivalent vanadium ion and divalent vanadium ion;
(4), in the mixture of step (3), add an amount of divalence vanadium oxide electrolyte to remove divalent vanadium ion, obtain vanadium cell negative pole liquid;
(5), in vanadium cell negative pole liquid, add toluenesulfonic acid as catalyst.
Wherein, the oxalic acid in the step (1) is excessive 12%, and the sulfuric acid concentration that adds in the step (2) is 6mol/L, and boiling time is 50 minutes.
Further, in order to weaken toluenesulfonic acid to the negative effect of conductivity, can also in vanadium cell negative pole liquid, add conducting medium in step (5) back.
Preparation method of the present invention adds toluenesulfonic acid as catalyst in vanadium cell negative pole liquid, improve the invertibity of electrode process, reduces electrochemical polarization, improves the vanadium cell energy efficiency, reduces the viscosity of negative pole liquid.
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 (5)
1. the preparation method of a vanadium cell negative pole liquid is characterized in that, comprising:
(1), vanadic oxide, oxalic acid and sulfuric acid are mixed in proportion;
(2), in the mixture of step (1), add sulfuric acid, heating makes vanadic oxide dissolve fully, and boils 45-60 minute, obtains vanadic sulfate solution;
(3), to switch on away wherein excessive oxalic acid of vanadic sulfate solution, and obtain the mixture of trivalent vanadium ion and divalent vanadium ion;
(4), in the mixture of step (3), add an amount of divalence vanadium oxide electrolyte to remove divalent vanadium ion, obtain vanadium cell negative pole liquid;
(5), in vanadium cell negative pole liquid, add toluenesulfonic acid as catalyst.
2. preparation method according to claim 1 is characterized in that, the oxalic acid excessive 12% in the step (1).
3. preparation method according to claim 1 is characterized in that, the sulfuric acid concentration that adds in the step (2) is 6mol/L.
4. preparation method according to claim 1 is characterized in that, the boiling time in the step (2) is 50 minutes.
5. preparation method according to claim 1 is characterized in that, also is included in step (5) back and adds conducting medium in vanadium cell negative pole liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101096280A CN103199292A (en) | 2013-03-29 | 2013-03-29 | Preparation method of vanadium battery negative electrode solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101096280A CN103199292A (en) | 2013-03-29 | 2013-03-29 | Preparation method of vanadium battery negative electrode solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103199292A true CN103199292A (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101096280A Pending CN103199292A (en) | 2013-03-29 | 2013-03-29 | Preparation method of vanadium battery negative electrode solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103199292A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427103A (en) * | 2013-07-29 | 2013-12-04 | 大连博融新材料有限公司 | Production method for electrolyte for high-purity all-vanadium flow batteries |
| DE102014115081A1 (en) | 2014-10-16 | 2016-04-21 | Schmid Energy Systems Gmbh | Preparation of vanadyl sulfate from vanadium pentoxide |
| CN107069066A (en) * | 2017-03-13 | 2017-08-18 | 河南弘康光能科技有限公司 | A kind of all-vanadium redox flow battery electrolyte and its compound method |
| CN114772642A (en) * | 2022-04-22 | 2022-07-22 | 中国科学院过程工程研究所 | Preparation method of high-purity vanadyl sulfate solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719655A (en) * | 2005-03-29 | 2006-01-11 | 攀钢集团攀枝花钢铁研究院 | All-vanadium ion flow battery electrolyte and preparation method thereof |
| CN101572319A (en) * | 2009-06-18 | 2009-11-04 | 湖南维邦新能源有限公司 | Electrolyte for all-vanadium redox flow battery and preparation method thereof, and all-vanadium redox flow battery including the electrolyte |
| CN101651221A (en) * | 2009-09-27 | 2010-02-17 | 湖南维邦新能源有限公司 | Method for preparing electrolyte for vanadium cell |
| CN101800339A (en) * | 2009-02-05 | 2010-08-11 | 北京金能燃料电池有限公司 | Method for preparing vanadium cell electrolyte |
-
2013
- 2013-03-29 CN CN2013101096280A patent/CN103199292A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719655A (en) * | 2005-03-29 | 2006-01-11 | 攀钢集团攀枝花钢铁研究院 | All-vanadium ion flow battery electrolyte and preparation method thereof |
| CN101800339A (en) * | 2009-02-05 | 2010-08-11 | 北京金能燃料电池有限公司 | Method for preparing vanadium cell electrolyte |
| CN101572319A (en) * | 2009-06-18 | 2009-11-04 | 湖南维邦新能源有限公司 | Electrolyte for all-vanadium redox flow battery and preparation method thereof, and all-vanadium redox flow battery including the electrolyte |
| CN101651221A (en) * | 2009-09-27 | 2010-02-17 | 湖南维邦新能源有限公司 | Method for preparing electrolyte for vanadium cell |
Non-Patent Citations (1)
| Title |
|---|
| 刘联等: "对甲苯磺酸对钒电池负极液的影响", 《电源技术》, vol. 34, no. 6, 30 June 2010 (2010-06-30) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427103A (en) * | 2013-07-29 | 2013-12-04 | 大连博融新材料有限公司 | Production method for electrolyte for high-purity all-vanadium flow batteries |
| DE102014115081A1 (en) | 2014-10-16 | 2016-04-21 | Schmid Energy Systems Gmbh | Preparation of vanadyl sulfate from vanadium pentoxide |
| CN107069066A (en) * | 2017-03-13 | 2017-08-18 | 河南弘康光能科技有限公司 | A kind of all-vanadium redox flow battery electrolyte and its compound method |
| CN107069066B (en) * | 2017-03-13 | 2020-09-08 | 河南弘康光能科技有限公司 | All-vanadium redox flow battery electrolyte and preparation method thereof |
| CN114772642A (en) * | 2022-04-22 | 2022-07-22 | 中国科学院过程工程研究所 | Preparation method of high-purity vanadyl sulfate solution |
| CN114772642B (en) * | 2022-04-22 | 2024-03-01 | 中国科学院过程工程研究所 | Preparation method of high-purity vanadyl sulfate solution |
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| ASS | Succession or assignment of patent right |
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: 20130710 |