CN117673501A - Water-based zinc ion battery electrolyte containing natural organic additive, and preparation method and application thereof - Google Patents
Water-based zinc ion battery electrolyte containing natural organic additive, and preparation method and application thereof Download PDFInfo
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- CN117673501A CN117673501A CN202311673113.3A CN202311673113A CN117673501A CN 117673501 A CN117673501 A CN 117673501A CN 202311673113 A CN202311673113 A CN 202311673113A CN 117673501 A CN117673501 A CN 117673501A
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- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003792 electrolyte Substances 0.000 title claims abstract description 46
- 239000006259 organic additive Substances 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000011701 zinc Substances 0.000 claims abstract description 22
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- WMBWREPUVVBILR-UHFFFAOYSA-N GCG Natural products C=1C(O)=C(O)C(O)=CC=1C1OC2=CC(O)=CC(O)=C2CC1OC(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-UHFFFAOYSA-N 0.000 claims description 18
- WMBWREPUVVBILR-WIYYLYMNSA-N (-)-Epigallocatechin-3-o-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=C(O)C=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-WIYYLYMNSA-N 0.000 claims description 14
- 229940030275 epigallocatechin gallate Drugs 0.000 claims description 14
- LVJJFMLUMNSUFN-UHFFFAOYSA-N gallocatechin gallate Natural products C1=C(O)C=C2OC(C=3C=C(O)C(O)=CC=3)C(O)CC2=C1OC(=O)C1=CC(O)=C(O)C(O)=C1 LVJJFMLUMNSUFN-UHFFFAOYSA-N 0.000 claims description 11
- LSHVYAFMTMFKBA-TZIWHRDSSA-N (-)-epicatechin-3-O-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-TZIWHRDSSA-N 0.000 claims description 10
- LSHVYAFMTMFKBA-UHFFFAOYSA-N ECG Natural products C=1C=C(O)C(O)=CC=1C1OC2=CC(O)=CC(O)=C2CC1OC(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-UHFFFAOYSA-N 0.000 claims description 10
- 150000003751 zinc Chemical class 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- LSHVYAFMTMFKBA-PZJWPPBQSA-N (+)-catechin-3-O-gallate Chemical compound O([C@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=CC=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 LSHVYAFMTMFKBA-PZJWPPBQSA-N 0.000 claims description 6
- 239000012266 salt solution Substances 0.000 claims description 6
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 6
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-UHFFFAOYSA-L 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- WMBWREPUVVBILR-GHTZIAJQSA-N (+)-gallocatechin gallate Chemical compound O([C@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=C(O)C=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-GHTZIAJQSA-N 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 2
- 239000007774 positive electrode material Substances 0.000 claims description 2
- 239000004246 zinc acetate Substances 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- 235000005074 zinc chloride Nutrition 0.000 claims description 2
- CITILBVTAYEWKR-UHFFFAOYSA-L zinc trifluoromethanesulfonate Chemical compound [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 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 9
- 239000001257 hydrogen Substances 0.000 abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000007086 side reaction Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000006911 nucleation Effects 0.000 abstract description 5
- 238000010899 nucleation Methods 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 210000001787 dendrite Anatomy 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 10
- 239000000654 additive Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- PFTAWBLQPZVEMU-DZGCQCFKSA-N (+)-catechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-DZGCQCFKSA-N 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 235000005487 catechin Nutrition 0.000 description 6
- 229950001002 cianidanol Drugs 0.000 description 6
- ADRVNXBAWSRFAJ-UHFFFAOYSA-N catechin Natural products OC1Cc2cc(O)cc(O)c2OC1c3ccc(O)c(O)c3 ADRVNXBAWSRFAJ-UHFFFAOYSA-N 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 239000002000 Electrolyte additive Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 229960001763 zinc sulfate Drugs 0.000 description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- PFTAWBLQPZVEMU-ZFWWWQNUSA-N (+)-epicatechin Natural products C1([C@@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-ZFWWWQNUSA-N 0.000 description 2
- PFTAWBLQPZVEMU-UKRRQHHQSA-N (-)-epicatechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@H]2O)=CC=C(O)C(O)=C1 PFTAWBLQPZVEMU-UKRRQHHQSA-N 0.000 description 2
- IKMDFBPHZNJCSN-UHFFFAOYSA-N Myricetin Chemical compound C=1C(O)=CC(O)=C(C(C=2O)=O)C=1OC=2C1=CC(O)=C(O)C(O)=C1 IKMDFBPHZNJCSN-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 235000012734 epicatechin Nutrition 0.000 description 2
- LPTRNLNOHUVQMS-UHFFFAOYSA-N epicatechin Natural products Cc1cc(O)cc2OC(C(O)Cc12)c1ccc(O)c(O)c1 LPTRNLNOHUVQMS-UHFFFAOYSA-N 0.000 description 2
- 150000002117 epicatechin derivatives Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229940116852 myricetin Drugs 0.000 description 2
- PCOBUQBNVYZTBU-UHFFFAOYSA-N myricetin Natural products OC1=C(O)C(O)=CC(C=2OC3=CC(O)=C(O)C(O)=C3C(=O)C=2)=C1 PCOBUQBNVYZTBU-UHFFFAOYSA-N 0.000 description 2
- 235000007743 myricetin Nutrition 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- WMBWREPUVVBILR-NQIIRXRSSA-N (-)-gallocatechin gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@H]1C=1C=C(O)C(O)=C(O)C=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-NQIIRXRSSA-N 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229930002877 anthocyanin Natural products 0.000 description 1
- 235000010208 anthocyanin Nutrition 0.000 description 1
- 239000004410 anthocyanin Substances 0.000 description 1
- 150000004636 anthocyanins Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229940001941 soy protein Drugs 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
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
The invention provides a water system zinc ion battery electrolyte containing a natural organic additive, a preparation method and application thereof, and relates to the technical field of water system zinc ion batteries. The aqueous zinc ion battery electrolyte is added with natural organic additives of which the concentration is 0.1 mM-50 mM. The natural organic additive is adsorbed on the surface of the zinc cathode, so that nucleation overpotential is reduced, zinc is induced to be uniformly deposited, then the natural organic additive interacts with water, and the generation of hydrogen evolution reaction and side reaction is inhibited, so that the stability and safety of the zinc ion battery of the water-based electrolyte system are improved, and the problems of dendrite growth, anode corrosion and the like of the zinc cathode of the water-based zinc ion battery are effectively inhibited.
Description
Technical Field
The invention relates to the technical field of aqueous zinc ion battery electrolyte, in particular to aqueous zinc ion battery electrolyte containing a natural organic additive, and a preparation method and application thereof.
Background
With the continuous development of renewable energy sources, battery technology is widely used as an important way of energy storage and release. The water-based zinc ion battery has the advantages of high energy density, low cost, environmental protection and the like, and is gradually receiving more and more attention. However, zinc ion batteries have some problems in practical applications. Such as uncontrolled dendrite growth, hydrogen evolution reaction, side reaction formation, and anode side corrosion of zinc ions during electroplating and stripping. The growth of zinc dendrites can puncture the membrane to cause short circuit of the battery, hydrogen evolution reaction can cause expansion of the battery, side reaction can form dead zinc, and the like can cause battery faults, corrosion damages coulomb efficiency, and finally reduces the coulomb efficiency of the rechargeable water-based zinc ion battery to shorten the cycle life and influence the safety performance.
In order to solve the above problems, many improved methods of zinc ion batteries have been proposed. For example, artificial SEI films, negative electrode structural designs, electrolyte solution modifications, and the like. Among them, the addition of a small amount of electrolyte additives is the simplest and effective modification method, and according to its composition, the electrolyte additives are classified into two major categories, namely, inorganic additives and organic additives, and the organic additives have various functional groups, which are capable of not only effectively regulating the peeling and deposition of zinc ions but also inhibiting the occurrence of side reactions, and thus have been attracting attention. Some of the additives of the prior art may have adverse effects on the environment or have a problem of high cost in mass production.
Accordingly, there is a need to provide a low cost, high safety, high performance, natural organic additive improved electrolyte solution that overcomes the deficiencies of the prior art, while meeting the environmental requirements.
Disclosure of Invention
The invention provides a water-based zinc ion battery electrolyte containing a natural organic additive, and a preparation method and application thereof, and aims to solve the problems in the prior art.
In order to achieve the above purpose, the embodiment of the invention provides a water-based zinc ion battery electrolyte containing a natural organic additive, and a preparation method and application thereof, wherein deionized water is selected as a solvent, catechin with high adsorption performance, and isomeric epicatechin gallate and derivatives thereof are adopted as electrolyte additives, so that the performance and safety of the zinc ion battery are effectively improved, and the development and commercial application of the zinc ion battery technology are hopefully promoted, and the method contributes to environmental protection and sustainable development. The natural organic additive is mainly catechin and its isomerism epicatechin gallate and its derivatives, and has more benzene ring conjugation and hydroxyl hydrogen bonding, and stronger adsorption compared with catechin and epicatechin. The nucleation overpotential is reduced by adsorbing on the surface of the zinc cathode, and the zinc ion battery interacts with water to inhibit the generation of hydrogen evolution reaction and side reaction, so that the stability and the safety of the zinc ion battery of the water-based electrolyte system are improved, and the production cost is reduced.
The embodiment of the invention provides an aqueous zinc ion battery electrolyte containing a natural organic additive, wherein the natural organic additive is at least one of catechin gallate, epicatechin gallate, gallocatechin gallate and epigallocatechin gallate.
Preferably, the structural formula of the catechin gallate is shown as the following formula I, the structural formula of the epicatechin gallate is shown as the following formula II, the structural formula of the gallocatechin gallate is shown as the following formula III, and the structural formula of the epigallocatechin gallate is shown as the following formula IV;
based on one general inventive concept, the embodiment of the invention provides a preparation method of an aqueous zinc ion battery electrolyte containing a natural organic additive, which comprises the following steps:
s1, taking soluble zinc salt powder, adding deionized water, and performing ultrasonic dispersion to obtain a soluble zinc salt solution;
s2, adding natural organic additive powder into the soluble zinc salt solution, and performing ultrasonic dispersion to obtain the water-based zinc ion battery electrolyte containing the natural organic additive.
Preferably, the soluble zinc salt is at least one of zinc sulfate heptahydrate, zinc triflate, zinc chloride and zinc acetate.
Preferably, the concentration of the soluble zinc salt solution is 0.1-21 mol/L.
Preferably, the ultrasonic dispersion time is 30min.
Preferably, the concentration of the natural organic additive in the aqueous zinc ion battery electrolyte containing the natural organic additive is 0.01-1 mol/L.
The embodiment of the invention also provides a water-based zinc ion battery, which comprises the water-based zinc ion battery electrolyte containing the natural organic additive or the water-based zinc ion battery electrolyte containing the natural organic additive prepared by the preparation method.
Preferably, a positive electrode material, a zinc negative electrode, and a separator are further included.
Preferably, the membrane is Whatman GF/D.
The scheme of the invention has the following beneficial effects:
(1) The invention provides a water-based zinc ion battery electrolyte containing natural organic materials and a preparation method thereof, which effectively improve the performance and safety of a zinc ion battery by selecting deionized water as a solvent and adopting catechin with high adsorption performance, and epicatechin gallate and derivatives thereof as electrolyte additives, and are hopeful to promote the development and commercial application of zinc ion battery technology and make contribution to environmental protection and sustainable development.
(2) The natural organic additive of the invention is mainly catechin and epicatechin gallate and its derivatives, and has more benzene ring conjugation and hydroxyl hydrogen bonding, and stronger adsorption compared with catechin and epicatechin. The nucleation overpotential is reduced by adsorbing on the surface of the zinc cathode, and the zinc ion battery interacts with water to inhibit the generation of hydrogen evolution reaction and side reaction, so that the stability and the safety of the zinc ion battery of the water-based electrolyte system are improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is the cycle performance of the aqueous zinc-ion battery electrolytes of examples 1-6 and comparative examples 1-3 containing natural organic additives in Zn symmetric cells;
FIG. 2 is the coulombic efficiency of the aqueous zinc-ion battery electrolyte containing natural organic additives of example 1 of the present invention in a Zn Cu half-cell;
FIG. 3 shows the Zn MnO content of the aqueous zinc ion battery electrolyte containing a natural organic additive according to example 1 of the present invention 2 Cycle performance in full cell;
FIG. 4 is a comparison of hydrogen evolution curves of the aqueous zinc ion battery electrolyte containing natural organic additives of example 1 of the present invention in Zn SS symmetric batteries;
FIG. 5 is a comparison of nucleation overpotential curves of an aqueous zinc-ion battery electrolyte containing natural organic additives of example 1 of the present invention in a Zn SS half-cell;
fig. 6 is an SEM of the post-deposition anode of the zinc symmetric cell of the aqueous zinc-ion cell electrolyte containing natural organic additives of example 1 of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present invention.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or may be prepared by existing methods.
Aiming at the existing problems, the invention provides a water-based zinc ion battery electrolyte containing a natural organic additive, and a preparation method and application thereof.
Example 1
A preparation method of an aqueous zinc ion battery electrolyte containing natural organic additives comprises the following steps:
step 1: taking a certain amount of zinc sulfate powder and a proper amount of deionized water, and performing ultrasonic treatment for 30min to prepare 1M zinc sulfate as a matrix electrolyte for standby;
step 2: adding a certain amount of epigallocatechin gallate (EGCG) additive powder into 1M zinc sulfate solution, and performing ultrasonic treatment for 30min to obtain mixed electrolyte with EGCG concentration of 1 mM.
Example 2
Other conditions were the same as in example 1, except that the concentration of EGCG was 0.5mM.
Example 3
Other conditions were the same as in example 1, except that the concentration of EGCG was 50mM.
Example 4
Other conditions were the same as in example 1, except that Catechin Gallate (CG) was used as an additive.
Example 5
Other conditions were the same as in example 1, except that epicatechin gallate (ECG) was used as an additive.
Example 6
Other conditions were the same as in example 1, except that gallocatechin gallate (GCG) was used as an additive.
Comparative example 1
Adding a certain amount of myricetin powder into 1M zinc sulfate solution, and performing ultrasonic treatment for 30min to obtain mixed electrolyte with myricetin concentration of 1 mM.
Comparative example 2
Other conditions were the same as in comparative example 1 except that anthocyanin was used as an additive.
Comparative example 3
Other conditions were the same as in comparative example 1 except that soy protein was used as an additive.
Testing
The electrolytes of examples 1 to 6 and comparative examples 1 to 3 were assembled into Zn symmetric batteries (Whatman GF/D was used as separator, 160 μl of electrolyte was added) and then subjected to charge and discharge tests with neo-wei, and the data in fig. 1 shows that 1mM EGCG can significantly improve the cycle stability of aqueous zinc ion batteries and extend the cycle life of the circulating batteries up to 1500 hours.
After the electrolyte of the embodiment 3 is assembled into a Zn Cu half cell and a Zn MnO2 full cell (Whatman GF/D is adopted as a diaphragm, 160 microliters of electrolyte is added), a charge-discharge test is carried out by using new wei, and the data of FIG. 2 show that 1mM EGCG can significantly improve the coulombic efficiency of the water-based zinc ion battery. The data in FIG. 3 shows that 1mM EGCG can significantly improve the cycle stability and cycle life of the aqueous Zn MnO2 full cell.
The electrolyte of example 3 was assembled into a Zn SS half cell (Whatman GF/D was used as the separator, 160. Mu.l electrolyte was added) and then tested for LSV and CV with CHI 760e, and the data in FIG. 4 shows that 1mM EGCG can broaden the hydrogen evolution overpotential of aqueous zinc ion cells; the data in fig. 5 shows that 1mM EGCG is capable of reducing the nucleation overpotential of aqueous zinc ion cells.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The aqueous zinc ion battery electrolyte containing the natural organic additive is characterized in that the natural organic additive is at least one of catechin gallate, epicatechin gallate, gallocatechin gallate and epigallocatechin gallate.
2. The aqueous zinc ion battery electrolyte containing natural organic additives according to claim 1, wherein the catechin gallate has a structural formula as shown in formula I, epicatechin gallate has a structural formula as shown in formula II, gallocatechin gallate has a structural formula as shown in formula III, and epigallocatechin gallate has a structural formula as shown in formula IV;
3. a method for preparing an aqueous zinc-ion battery electrolyte containing natural organic additives as claimed in claim 1 or 2, comprising the steps of:
s1, taking soluble zinc salt powder, adding deionized water, and performing ultrasonic dispersion to obtain a soluble zinc salt solution;
s2, adding natural organic additive powder into the soluble zinc salt solution, and performing ultrasonic dispersion to obtain the water-based zinc ion battery electrolyte containing the natural organic additive.
4. The method for producing an aqueous zinc ion battery electrolyte containing natural organic additives according to claim 3, wherein the soluble zinc salt is at least one of zinc sulfate heptahydrate, zinc triflate, zinc chloride and zinc acetate.
5. The method for producing an aqueous zinc-ion battery electrolyte containing natural organic additives according to claim 3, wherein the concentration of the soluble zinc salt solution is 0.1 to 21mol/L.
6. The method for preparing an aqueous zinc-ion battery electrolyte containing natural organic additives according to claim 3, wherein the ultrasonic dispersion time is 30min.
7. The method for producing an aqueous zinc-ion battery electrolyte containing a natural organic additive according to claim 3, wherein the concentration of the natural organic additive in the aqueous zinc-ion battery electrolyte containing a natural organic additive is 0.01 to 1mol/L.
8. An aqueous zinc ion battery comprising an aqueous zinc ion battery electrolyte containing a natural organic additive according to claim 1 or 2, or an aqueous zinc ion battery electrolyte containing a natural organic additive produced by the production method according to any one of claims 3 or 7.
9. The aqueous zinc-ion battery of claim 8, further comprising a positive electrode material, a zinc negative electrode, and a separator.
10. The aqueous zinc-ion battery of claim 9, wherein the separator is Whatman GF/D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311673113.3A CN117673501A (en) | 2023-12-06 | 2023-12-06 | Water-based zinc ion battery electrolyte containing natural organic additive, and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311673113.3A CN117673501A (en) | 2023-12-06 | 2023-12-06 | Water-based zinc ion battery electrolyte containing natural organic additive, and preparation method and application thereof |
Publications (1)
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| CN117673501A true CN117673501A (en) | 2024-03-08 |
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| CN202311673113.3A Pending CN117673501A (en) | 2023-12-06 | 2023-12-06 | Water-based zinc ion battery electrolyte containing natural organic additive, and preparation method and application thereof |
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| Country | Link |
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| CN (1) | CN117673501A (en) |
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2023
- 2023-12-06 CN CN202311673113.3A patent/CN117673501A/en active Pending
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