CN117613416A - Water-based zinc ion battery electrolyte additive, preparation method and application thereof - Google Patents
Water-based zinc ion battery electrolyte additive, preparation method and application thereof Download PDFInfo
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- CN117613416A CN117613416A CN202311520136.0A CN202311520136A CN117613416A CN 117613416 A CN117613416 A CN 117613416A CN 202311520136 A CN202311520136 A CN 202311520136A CN 117613416 A CN117613416 A CN 117613416A
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- zinc
- ion battery
- electrolyte additive
- battery electrolyte
- quantum dot
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- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000002000 Electrolyte additive Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002096 quantum dot Substances 0.000 claims abstract description 37
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 12
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 239000011701 zinc Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 11
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 7
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 6
- 238000000502 dialysis Methods 0.000 claims description 6
- 239000004246 zinc acetate Substances 0.000 claims description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 6
- 239000011592 zinc chloride Substances 0.000 claims description 5
- 235000005074 zinc chloride Nutrition 0.000 claims description 5
- 229960001763 zinc sulfate Drugs 0.000 claims description 5
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 5
- ZMLPZCGHASSGEA-UHFFFAOYSA-M zinc trifluoromethanesulfonate Chemical compound [Zn+2].[O-]S(=O)(=O)C(F)(F)F ZMLPZCGHASSGEA-UHFFFAOYSA-M 0.000 claims description 5
- CITILBVTAYEWKR-UHFFFAOYSA-L zinc trifluoromethanesulfonate Substances [Zn+2].[O-]S(=O)(=O)C(F)(F)F.[O-]S(=O)(=O)C(F)(F)F CITILBVTAYEWKR-UHFFFAOYSA-L 0.000 claims description 5
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- 229960005070 ascorbic acid Drugs 0.000 claims description 4
- 235000010323 ascorbic acid Nutrition 0.000 claims description 4
- 239000011668 ascorbic acid Substances 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 abstract description 20
- 239000000654 additive Substances 0.000 abstract description 16
- 230000000996 additive effect Effects 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 210000001787 dendrite Anatomy 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002001 electrolyte material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
-
- 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
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a preparation method of an aqueous zinc ion battery electrolyte additive, which comprises the following steps: respectively dissolving citric acid and the like and diethylenetriamine in water, mixing and stirring the solutions, performing ultrasonic treatment, and transferring to a reaction kettle for hydrothermal reaction; step two, naturally cooling to room temperature after the reaction is finished; step three, filtering the cooled solution with a filter membrane, repeating the filtering for three times, and removing all impurities to obtain a fluorescent quantum dot solution; and step four, preparing electrolyte, and respectively adding different amounts of fluorescent quantum dot solutions to prepare the aqueous zinc ion battery electrolyte additive. The nitrogen-oxygen modified fluorescent quantum dot additive can effectively improve the transmission rate of zinc ions, reduce the internal resistance of a battery, and simultaneously prevent zinc dendrite growth, thereby protecting a zinc cathode and improving the cycle life and the stability of a water-based zinc ion battery.
Description
Technical Field
The invention belongs to the technical field of energy materials, and relates to a water system zinc ion battery electrolyte additive, a preparation method and application thereof.
Background
Aqueous zinc ion batteries have received considerable attention over the past decades as an environmentally friendly, safe, recyclable battery system. However, the discharge performance and cycle life thereof still need to be further improved to meet the ever-increasing energy storage demands. To solve this problem, many researches have been conducted to search for novel electrode materials, electrolytes, additives, and the like, in order to improve the overall performance of the aqueous zinc-ion battery.
Among them, the electrolyte, which is a key component in the battery system, has an important influence on the charge-discharge performance and cycle life of the battery. However, the conventional electrolyte materials have the problems of low transmission rate, large internal resistance and the like, which limit the performance improvement of the water-based zinc ion battery. Therefore, the search for novel electrolyte materials and additives becomes a key technical approach for improving the performance of the water-based zinc ion battery.
In recent years, quantum dots have received attention as a novel material. The quantum dot is a compound with the size at the nanometer level, and has the advantages of small size, large specific surface area, good conductivity and the like. Research shows that the quantum dot can be used as an important application in the fields of photoelectric conversion materials, biomedical diagnosis and treatment agents and the like. Meanwhile, the quantum dot has excellent conductivity and stability, and can effectively improve the transmission rate of ions and reduce the internal resistance of the battery, thereby improving the discharge performance of the battery.
Therefore, the nitrogen-oxygen modified fluorescent quantum dot additive is applied to the electrolyte of the water-based zinc ion battery, and is expected to improve the discharge performance and the cycle life of the battery. Specifically, by adding the nitrogen-oxygen modified fluorescent quantum dot additive into the electrolyte, the transmission rate of zinc ions can be effectively improved, the internal resistance of the battery is reduced, and the discharge performance of the battery is improved. Meanwhile, the nitrogen-oxygen modified fluorescent quantum dot additive can also effectively prevent zinc dendrite growth and improve the cycle life of the battery.
In conclusion, the patent technology of the nitrogen-oxygen modified fluorescent quantum dot additive for the water-based zinc ion battery is improved and optimized based on the existing water-based zinc ion battery technology, and has important practical value and theoretical significance. Not only can the discharge performance and the cycle life of the water-based zinc ion battery be improved, but also the further development and the application of the battery system which is environment-friendly, safe and capable of being recycled can be promoted.
Disclosure of Invention
The invention provides a water-based zinc ion battery electrolyte additive, a preparation method and application thereof, aiming at the problems of dendrites and side reactions thereof existing in the current zinc metal cathode.
The invention aims at realizing the following technical scheme:
the preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
respectively dissolving any one or more of citric acid, glucose and ascorbic acid and diethylenetriamine in water, mixing and stirring one or more solutions, performing ultrasonic treatment, and transferring to a reaction kettle for hydrothermal reaction;
step two, naturally cooling to room temperature after the reaction in the step one is finished;
filtering the cooled solution with a filter membrane, repeating the filtering for three times, and removing all impurities to obtain a solution, namely a fluorescent quantum dot solution;
and step four, preparing zinc sulfate/zinc trifluoromethane sulfonate/zinc chloride/zinc acetate electrolyte, and respectively adding the fluorescent quantum dot solutions with different amounts prepared in the step three to prepare the aqueous zinc ion battery electrolyte additive.
Further, the amounts of citric acid and diethylenetriamine described in step one are 2-4g and 3-5mL, respectively.
Further, the water in the first step is deionized water, and the volume is 20-30mL.
Further, in the first step, the two solutions were mixed and stirred for 30 minutes, sonicated for 20 minutes, and then transferred to a 50ml reaction vessel for hydrothermal reaction.
Further, the hydrothermal reaction conditions of step one are: the reaction is carried out for 6 hours at 150-200 ℃, and the temperature rising rate is 5 ℃/min.
Further, after the filtration with the filter membrane in the third step, dialysis is required to remove impurity ions.
Further, the pore size of the filter membrane in the third step is 0.22 μm.
Further, in the fourth step, 2M zinc sulfate/zinc trifluoromethane sulfonate/zinc chloride/zinc acetate electrolyte is prepared.
Compared with the prior art, the invention has the following advantages:
(1) The nitrogen-oxygen modified fluorescent quantum dot additive prepared by the invention can effectively protect a zinc cathode, avoid uneven zinc ion deposition and reduce dendrite formation, thereby improving the stability and safety of a zinc ion battery.
(2) The nitrogen-oxygen modified fluorescent quantum dot additive can improve the electrochemical performance of the zinc ion battery, such as charge and discharge rate, cycle life and the like, so that the practicability and commercial value of the battery are improved.
(3) The nitrogen-oxygen modified fluorescent quantum dot additive is simple to prepare, low in cost and suitable for large-scale production and application.
(4) The nitrogen-oxygen modified fluorescent quantum dot additive is nontoxic and environment-friendly, is harmless to the environment, and meets the requirements of the current society on green energy and sustainable development.
(5) The experimental result shows that the cycle life of the water-based zinc ion battery added with the nitrogen-oxygen modified fluorescent quantum dot additive is prolonged to 480 hours. The invention provides a new protection method for research and development of the water-based zinc ion battery, and has important significance for development and application of an environment-friendly, safe and recyclable battery system.
Drawings
FIG. 1 is a fluorescence photograph of nitrogen-oxygen modified fluorescent quantum dot solutions prepared at different temperatures in example 1;
FIG. 2 is a graph of voltage versus time for a cell tested with the nitrogen-oxygen modified fluorescent quantum dot additive prepared in example 1;
FIG. 3 is a photograph of soil in which grass is planted with the nitrogen-oxygen modified fluorescent quantum dot solution prepared in example 3;
FIG. 4 is a graph showing the magnification performance of the cells obtained from the nitrogen-oxygen modified fluorescent quantum dot solution prepared in example 4.
Detailed Description
The following description of the present invention is provided with reference to the accompanying drawings, but is not limited to the following description, and any modifications or equivalent substitutions of the present invention should be included in the scope of the present invention without departing from the spirit and scope of the present invention.
The nitrogen-oxygen modified fluorescent quantum dot additive in the electrolyte prepared by the invention can effectively improve the transmission rate of zinc ions, reduce the internal resistance of the battery and further improve the discharge performance of the battery by adsorption, desorption or diffusion and other modes. Meanwhile, the nitrogen-oxygen modified fluorescent quantum dot additive can also effectively prevent zinc dendrite growth and improve the cycle life of the battery.
In the embodiment of the invention, the preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
dissolving any one or more of citric acid, glucose and ascorbic acid and diethylenetriamine into 20-30mL of deionized water respectively, wherein the amounts of the citric acid and the diethylenetriamine are 2-4g and 3-5mL respectively, mixing and stirring one or more solutions for 30 minutes, then transferring the solutions into a 50mL reaction kettle for reaction for 6 hours at 150-200 ℃ at a heating rate of 5 ℃/min for 20 minutes;
step two, naturally cooling to room temperature after the reaction in the step one is finished;
step three, filtering the cooled solution with a filter membrane with the aperture of 0.22 micrometers, repeating for three times, and removing all impurities to obtain a solution which is the fluorescent quantum dot solution;
and step four, preparing 2M zinc sulfate/zinc trifluoromethane sulfonate/zinc chloride/zinc acetate electrolyte, and respectively adding the different amounts of fluorescent quantum dot solutions prepared in the step three to prepare the aqueous zinc ion battery electrolyte additive.
In order that the invention may be more fully disclosed, a more particular description of the invention will be rendered by the following examples.
Example 1
The preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
accurately weighing 2.3g of citric acid and 3.47mL of diethylenetriamine, dissolving in 20mL of deionized water, stirring for 30min, transferring the solution into a 50mL reaction kettle, performing hydrothermal reaction at 180 ℃, stopping heating when the reaction time reaches 6 hours, and naturally cooling the reaction kettle to room temperature. The obtained solution is filtered by a microporous filter membrane with the size of 0.22 microns to remove larger impurity particles, and then the dialysis bag is used for exchanging impurity ions, so that the prepared fluorescent quantum dot solution is obtained. And respectively diluting the solutions by different times, and then adding 2M zinc sulfate salt to prepare the water-based zinc ion battery electrolyte additive.
And (3) performing battery assembly on the electrolyte additive and metallic zinc, and testing electrochemical data.
FIG. 1 is a fluorescence photograph of nitrogen-oxygen modified fluorescent quantum dots prepared at different temperatures in this example, which gave the strongest fluorescence intensity at 180℃and thus the highest quantum dot yield under this condition.
FIG. 2 is a graph of voltage versus time for a symmetrical cell incorporating a nitrogen-oxygen modified quantum dot additive according to this example, at 2mAcm -2 Can be stably operated for more than 400 hours at the current density of (c).
Example 2
The preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
accurately weighing 2.3g of citric acid and 3.47mL of diethylenetriamine, dissolving in 20mL of deionized water, stirring for 60min, transferring the solution into a 50mL reaction kettle, performing hydrothermal reaction at 180 ℃, stopping heating when the reaction time reaches 5 hours, and naturally cooling the reaction kettle to room temperature. The obtained solution is filtered by a microporous filter membrane with the size of 0.22 microns to remove larger impurity particles, and then the dialysis bag is used for exchanging impurity ions, so that the prepared fluorescent quantum dot solution is obtained. And respectively diluting the solutions by different times, and then adding 2M zinc salt of trifluoromethane sulfonate to prepare the aqueous zinc ion battery electrolyte additive.
Example 3
The preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
accurately weighing 1.5g of glucose and 4mL of diethylenetriamine, dissolving in 30mL of deionized water, stirring for 60min, performing ultrasonic treatment for 30min, transferring the solution into a 50mL reaction kettle, performing hydrothermal reaction at 200 ℃, stopping heating when the reaction time reaches 5 hours, and naturally cooling the reaction kettle to room temperature. The obtained solution is filtered by a microporous filter membrane with the size of 0.22 microns to remove larger impurity particles, and then the dialysis bag is used for exchanging impurity ions, so that the prepared fluorescent quantum dot solution is obtained. And respectively diluting the solutions by different times, and then adding 2M zinc chloride salt to prepare the water-based zinc ion battery electrolyte additive.
And adding the electrolyte additive into soil for pollution detection.
FIG. 3 shows that the nitrogen-oxygen modified fluorescent quantum dot solution prepared in this example was still grown in the soil for one week, indicating that the electrolyte is non-toxic and harmless to the environment.
Example 4
The preparation method of the aqueous zinc ion battery electrolyte additive comprises the following steps:
accurately weighing 2g of ascorbic acid and 5mL of diethylenetriamine, dissolving in 30mL of deionized water, stirring for 60min, performing ultrasonic treatment for 30min, transferring the solution into a 50mL reaction kettle, performing hydrothermal reaction at 150 ℃, stopping heating when the reaction time reaches 5 h, and naturally cooling the reaction kettle to room temperature. The obtained solution is filtered by a microporous filter membrane with the size of 0.2 microns to remove larger impurity particles, and then the dialysis bag is used for exchanging impurity ions, so that the prepared fluorescent quantum dot solution is obtained. And respectively diluting the solutions by different times, and then adding 2M zinc acetate to prepare the aqueous zinc ion battery electrolyte additive.
And (3) performing battery assembly on the electrolyte additive and metallic zinc, and testing electrochemical data.
FIG. 4 is a magnification representation of a symmetric cell with a nitrogen-oxygen modified quantum dot additive of this example, even when the current density reached 20mAcm -2 The battery still shows a stable cycle.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention.
Claims (10)
1. The preparation method of the aqueous zinc ion battery electrolyte additive is characterized by comprising the following steps of:
respectively dissolving any one or more of citric acid, glucose and ascorbic acid and diethylenetriamine in water, mixing and stirring one or more solutions, performing ultrasonic treatment, and transferring to a reaction kettle for hydrothermal reaction;
step two, naturally cooling to room temperature after the reaction in the step one is finished;
filtering the cooled solution with a filter membrane, repeating the filtering for three times, and removing all impurities to obtain a solution, namely a fluorescent quantum dot solution;
and step four, preparing zinc sulfate/zinc trifluoromethane sulfonate/zinc chloride/zinc acetate electrolyte, and respectively adding the fluorescent quantum dot solutions with different amounts prepared in the step three to prepare the aqueous zinc ion battery electrolyte additive.
2. The method for preparing an aqueous zinc-ion battery electrolyte additive according to claim 1, wherein the amounts of citric acid and diethylenetriamine in the first step are 2-4g and 3-5mL, respectively.
3. The method for preparing an aqueous zinc-ion battery electrolyte additive according to claim 1, wherein the water in the first step is deionized water, and the volume is 20-30mL.
4. The method for preparing an aqueous zinc-ion battery electrolyte additive according to claim 1, wherein in the first step, the two solutions are mixed and stirred for 30 minutes, subjected to ultrasonic treatment for 20 minutes, and then transferred to a 50ml reaction kettle for hydrothermal reaction.
5. The method for preparing the aqueous zinc-ion battery electrolyte additive according to claim 1, wherein the hydrothermal reaction conditions in the first step are: the reaction is carried out for 6 hours at 150-200 ℃, and the temperature rising rate is 5 ℃/min.
6. The method for preparing an aqueous zinc-ion battery electrolyte additive according to claim 1, wherein in the third step, after the filtration with the filter membrane, dialysis is required to remove impurity ions.
7. The method for preparing an aqueous zinc-ion battery electrolyte additive according to claim 1, wherein the pore size of the filter membrane in the third step is 0.22 μm.
8. The method for preparing an aqueous zinc ion battery electrolyte additive according to claim 1, wherein in the fourth step, a 2M zinc sulfate/zinc trifluoromethane sulfonate/zinc chloride/zinc acetate electrolyte is prepared.
9. An aqueous zinc-ion battery electrolyte additive prepared according to the preparation method of any one of claims 1 to 8.
10. Use of an aqueous zinc-ion battery electrolyte additive according to claim 9 for zinc-ion battery zinc negative electrode protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311520136.0A CN117613416A (en) | 2023-11-14 | 2023-11-14 | Water-based zinc ion battery electrolyte additive, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311520136.0A CN117613416A (en) | 2023-11-14 | 2023-11-14 | Water-based zinc ion battery electrolyte additive, preparation method and application thereof |
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| CN117613416A true CN117613416A (en) | 2024-02-27 |
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| CN202311520136.0A Pending CN117613416A (en) | 2023-11-14 | 2023-11-14 | Water-based zinc ion battery electrolyte additive, preparation method and application thereof |
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| Country | Link |
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