CN112952077A - Flexible zinc ion battery and preparation method thereof - Google Patents

Flexible zinc ion battery and preparation method thereof Download PDF

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CN112952077A
CN112952077A CN201911256480.7A CN201911256480A CN112952077A CN 112952077 A CN112952077 A CN 112952077A CN 201911256480 A CN201911256480 A CN 201911256480A CN 112952077 A CN112952077 A CN 112952077A
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zinc
ion battery
electrode
flexible
negative electrode
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付旭东
刘清亭
胡圣飞
张�荣
夏春光
黄正
鄢蛹蝶
张帆
杨艺
雷舒霖
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Hubei University of Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/42—Alloys based on zinc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
    • H01M10/38—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
    • H01M4/602—Polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a flexible zinc ion battery and a preparation method thereof. The composite material comprises a positive electrode, a negative electrode, a hydrogel electrolyte and a diaphragm arranged between the positive electrode and the negative electrode, wherein the positive electrode is a conductive polymer nanowire array, and the negative electrode is a zinc nanosheet array. The preparation method comprises the following steps: (a) preparing a positive conductive polymer nanowire array; (b) preparing a negative electrode zinc nanosheet array; (c) and (3) preparing the flexible zinc ion battery. Compared with the prior art, the flexible zinc ion battery with ordered positive and negative electrodes and the preparation method thereof have the following advantages: the positive electrode and the negative electrode are in ordered structures, so that the transmission of zinc ions can be promoted, and the rate capability and the power density of the flexible zinc ion battery can be improved; the active material in the electrode is directly connected with the current collector, so that the internal resistance of the battery is reduced; the electrode active material grows on the current collector in situ, and a binder is not needed, so that the weight and the cost are reduced, and the proportion of active substances is increased.

Description

Flexible zinc ion battery and preparation method thereof
Technical Field
The invention relates to the technical field of zinc ion batteries, in particular to a flexible zinc ion battery with ordered positive and negative electrodes and a preparation method thereof.
Background
With the development of wearable electronic products, mobile communication and electric vehicles, the demand for flexible energy devices with high energy density and high power density is urgent. The flexible zinc ion battery has better safety, and the zinc is abundant in the earth crust and is not limited by resources, so the flexible zinc ion battery is a current research hotspot.
The radius of zinc ions is larger, so that the electrode material of the zinc ion battery is more easily damaged in the charging and discharging processes; secondly, zinc ions move slowly, gel electrolyte is mostly used in the flexible zinc ion battery, and compared with water-based electrolyte, the gel electrolyte has larger resistance to the movement of the zinc ions, so that the resistance is increased. The above two points result in poor cycle stability and large-rate charge and discharge performance of the zinc ion battery. Chinese patent (CN110190344A) invents a flexible zinc ion battery, and a current collecting layer comprises a ventilation layer and a substrate layer, so that the cycle stability of the flexible zinc ion battery is improved; chinese patent (CN 110429284A)) With P-MoO3-x/Al2O3The nano-rod is used as a positive electrode material, the zinc nano-material is used as a negative electrode, and the flexible zinc ion battery is assembled, so that the rate capability can be improved, but the positive electrode material has poor conductivity and is limited in rate capability improvement. In view of the difficulty in greatly improving the rate capability of the flexible zinc ion battery, the invention constructs the ordered positive and negative electrodes and assembles the flexible zinc ion battery, and the ordered electrodes can strengthen the transmission of zinc ions, thereby improving the high-rate charge and discharge performance of the battery.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to construct an ordered positive electrode and an ordered negative electrode and assemble a flexible zinc ion battery to strengthen zinc ion transmission, thereby increasing the high-rate charge and discharge performance of the battery, and provides the flexible zinc ion battery with the ordered positive electrode and the ordered negative electrode and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a flexible zinc ion battery, characterized in that: the composite material comprises a positive electrode, a negative electrode, a hydrogel electrolyte and a diaphragm arranged between the positive electrode and the negative electrode, wherein the positive electrode is a conductive polymer nanowire array, and the negative electrode is a zinc nanosheet array; the conductive polymer nanowire array and the zinc nanosheet array are loaded on a conductive substrate, the conductive substrate is carbon fiber cloth, carbon fiber paper or carbon felt, and the conductive substrate can serve as a current collector.
Preferably, the conductive polymer is one or a mixture of more than two of polyaniline or polyaniline derivatives, polypyrrole or polypyrrole derivatives, polythiophene or polythiophene derivatives.
Further, the diaphragm is a non-woven fabric diaphragm or a glass fiber diaphragm.
Further, the hydrogel electrolyte comprises a polymer matrix and a zinc salt.
Further, the hydrogel electrolyte comprises a polymer matrix and a zinc salt.
Furthermore, the polymer matrix is one or a mixture of more than two of polyvinyl alcohol, polyacrylic acid, polyethylene oxide and polyethylene terephthalate.
Furthermore, the zinc salt is one or a mixture of more than two of zinc sulfate, zinc nitrate, zinc chloride, zinc acetate and zinc trifluoromethanesulfonate.
In a second aspect, the present invention provides a method for preparing the flexible zinc-ion battery, which is characterized in that: the method comprises the following steps:
(a) preparing a positive conductive polymer nanowire array:
one or more than two of amine derivatives, pyrrole or pyrrole derivatives, thiophene or thiophene derivatives are subjected to electrochemical polymerization reaction in a solution, and a conductive polymer nanowire array is obtained in situ on a conductive substrate and is used as a positive electrode;
(b) preparing a negative electrode zinc nanosheet array:
preparing a zinc nanosheet array by an electrochemical method, wherein the conductive substrate is a working electrode, the graphite sheet is a counter electrode, the saturated calomel electrode is a reference electrode, and the zinc nanosheet array is electrodeposited in zinc sulfate aqueous solution in situ on the conductive substrate and serves as a negative electrode;
(c) preparing a flexible zinc ion battery:
adding a polymer matrix and zinc salt into deionized water, stirring uniformly at 80-95 ℃, immersing the anode, the cathode and the diaphragm, taking out, pressing the anode and the cathode on two sides of the diaphragm, drying, and sealing to obtain the flexible zinc ion battery.
Preferably, the sum of the concentrations of one or more than two of aniline or aniline derivatives, pyrrole or pyrrole derivatives, thiophene or thiophene derivatives in the solution in the step (a) is 0.1mol/L to 2 mol/L; adding a doping agent into the solution obtained in the step (a), wherein the doping agent is any one of hydrochloric acid, sulfuric acid, perchloric acid, phosphoric acid, p-toluenesulfonic acid or naphthalenesulfonic acid; the concentration of the dopant in the solution is 0.1mol/L to 2 mol/L; the current density of the electropolymerization of the step (a) is 0.05mAcm-2To 2mAcm-2And the electropolymerization time is 18min to 720 min.
Further, in the solution of the step (b)The concentration of zinc sulfate is 0.1mol/L to 2mol/L, sodium sulfate and boric acid are also added into the solution, the concentration of the sodium sulfate is 0.2mol/L to 4mol/L, and the concentration of the boric acid is 0.1mol/L to 1 mol/L; the current density of the electrodeposition in the step (b) is-10 mAcm-2To-100 mAcm-2The electrodeposition time is 10min to 160 min.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the positive electrode and the negative electrode of the flexible zinc ion battery are in an ordered structure, so that the transmission of zinc ions can be promoted, and the rate capability and the power density of the zinc ion battery can be improved;
(2) according to the invention, the active substance of the electrode in the flexible zinc ion is directly connected with the current collector, so that the internal resistance of the battery is reduced;
(3) the electrode active material in the flexible zinc ions grows on the current collector in situ, and a binder is not needed, so that the weight and the cost are reduced, and the proportion of active substances is increased.
Drawings
FIG. 1 is an SEM image of a polyaniline nanowire array prepared in example 1;
FIG. 2 is an SEM image of a zinc nanosheet array prepared in example 1;
fig. 3 is the rate performance of the flexible zinc-ion battery of example 1;
fig. 4 is a discharge curve of the flexible zinc-ion battery of example 1 in normal, folded and twisted states;
FIG. 5 is an SEM image of a polyaniline nanowire array prepared in example 2;
FIG. 6 is an SEM image of a polyaniline nanowire array prepared in example 3;
FIG. 7 is an SEM image of a zinc nanosheet array prepared in example 4;
FIG. 8 is an SEM image of the polypyrrole nanowire array prepared in example 5;
FIG. 9 is an SEM image of a polyaniline prepared by a comparative example;
fig. 10 is a graph of rate performance of a comparative flexible zinc-ion cell.
Detailed Description
For a better understanding of the present invention, the present invention will be further explained in detail with reference to the accompanying drawings and specific examples, but the present invention is not limited to the following examples.
Example 1
(1) Preparing a positive conductive polymer nanowire array:
adding 4.65g aniline (0.05mol) into 100mL 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, using a graphite sheet as a counter electrode and using a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation with the current density of 0.2mAcm-2Polymerizing for 180min to obtain polyaniline nanowire array as the anode material;
(2) preparing a negative electrode zinc nanosheet array:
adding 12.5g of zinc sulfate heptahydrate (0.043mol), 12.5g of sodium sulfate (0.088mol) and 2g of boric acid (0.032mol) into 100mL of deionized water to serve as an electrolyte, immersing a conductive substrate into the electrolyte to serve as a working electrode, using a graphite sheet as a counter electrode and a saturated calomel electrode as a reference electrode, and carrying out electrodeposition on an electrochemical workstation at a current density of-20 mAcm-2The electrodeposition time is 20min, and a zinc nanosheet array is obtained and used as a negative electrode material;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.
Example 2
(1) Preparing a positive conductive polymer nanowire array:
adding 4.65g aniline (0.05mol) into 100mL 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, using a graphite sheet as a counter electrode and using a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation with the current density of 0.1mAcm-2Polymerizing for 360min to obtain polyaniline nanowire array as the anode material;
(2) preparing a negative electrode zinc nanosheet array:
adding 12.5g of zinc sulfate heptahydrate (0.043mol), 12.5g of sodium sulfate (0.088mol) and 2g of boric acid (0.032mol) into 100mL of deionized water to serve as an electrolyte, immersing a conductive substrate into the electrolyte to serve as a working electrode, using a graphite sheet as a counter electrode and a saturated calomel electrode as a reference electrode, and carrying out electrodeposition on an electrochemical workstation at a current density of-20 mAcm-2The electrodeposition time is 20min, and a zinc nanosheet array is obtained and used as a negative electrode material;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.
Example 3
(1) Preparing a positive conductive polymer nanowire array:
adding 4.65g aniline (0.05mol) into 100mL 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, using a graphite sheet as a counter electrode and using a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation, wherein the current density is 0.15mAcm-2The polymerization time is 240min, and the polyaniline nanowire array is obtained and used as the anode material;
(2) preparing a negative electrode zinc nanosheet array:
adding 12.5g of zinc sulfate heptahydrate (0.043mol), 12.5g of sodium sulfate (0.088mol) and 2g of boric acid (0.032mol) into 100mL of deionized water to serve as an electrolyte, immersing a conductive substrate into the electrolyte to serve as a working electrode, using a graphite sheet as a counter electrode and a saturated calomel electrode as a reference electrode, and carrying out electrodeposition on an electrochemical workstation at a current density of-20 mAcm-2The electrodeposition time is 20min, and a zinc nanosheet array is obtained and used as a negative electrode material;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.
Example 4
(1) Preparing a positive conductive polymer nanowire array:
adding 4.65g aniline (0.05mol) into 100mL 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, using a graphite sheet as a counter electrode and using a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation with the current density of 0.2mAcm-2Polymerizing for 180min to obtain polyaniline nanowire array as the anode material;
(2) preparing a negative electrode zinc nanosheet array:
adding 12.5g of zinc sulfate heptahydrate (0.043mol), 12.5g of sodium sulfate (0.088mol) and 2g of boric acid (0.032mol) into 100mL of deionized water to serve as an electrolyte, immersing a conductive substrate into the electrolyte to serve as a working electrode, using a graphite sheet as a counter electrode and a saturated calomel electrode as a reference electrode, and carrying out electrodeposition on an electrochemical workstation at a current density of-20 mAcm-2The electrodeposition time is 40min, and the obtained zinc nanosheet array is used as a negative electrode material;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.
Example 5
(1) Preparing a positive conductive polymer nanowire array:
adding 3.35g pyrrole (0.05mol) into 100mL of 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, taking a graphite sheet as a counter electrode and taking a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation with the current density of 1mAcm-2The polymerization time is 36min, and the polypyrrole nanowire array is obtained and used as the anodeA material;
(2) preparing a negative electrode zinc nanosheet array:
adding 12.5g of zinc sulfate heptahydrate (0.043mol), 12.5g of sodium sulfate (0.088mol) and 2g of boric acid (0.032mol) into 100mL of deionized water to serve as an electrolyte, immersing a conductive substrate into the electrolyte to serve as a working electrode, using a graphite sheet as a counter electrode and a saturated calomel electrode as a reference electrode, and carrying out electrodeposition on an electrochemical workstation at a current density of-20 mAcm-2The electrodeposition time is 20min, and a zinc nanosheet array is obtained and used as a negative electrode material;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.
Comparative example
(1) Preparation of positive conductive polymer:
adding 4.65g aniline (0.05mol) into 100mL 1mol/L perchloric acid aqueous solution as electrolyte, immersing a conductive substrate into the electrolyte as a working electrode, using a graphite sheet as a counter electrode and using a saturated calomel electrode as a reference electrode, and carrying out electrochemical polymerization on an electrochemical workstation with the current density of 9mAcm-2Polymerizing for 4min to obtain polyaniline as the anode material;
(2) preparing negative electrode zinc:
directly using a metal zinc sheet as a negative electrode, and cutting the metal zinc sheet into a battery with a proper size;
(3) preparing a flexible zinc ion battery:
adding 15g of polyvinyl alcohol and 13.63g of zinc chloride into 50mL of deionized water, stirring uniformly at 80-95 ℃, immersing the positive electrode, the negative electrode and the diaphragm, taking out, pressing the positive electrode and the negative electrode on two sides of the diaphragm, drying, sealing to obtain the flexible zinc ion battery, and testing.

Claims (10)

1. A flexible zinc-ion battery characterized by: the composite material comprises a positive electrode, a negative electrode, a hydrogel electrolyte and a diaphragm arranged between the positive electrode and the negative electrode, wherein the positive electrode is a conductive polymer nanowire array, and the negative electrode is a zinc nanosheet array; the conductive polymer nanowire array and the zinc nanosheet array are loaded on a conductive substrate, the conductive substrate is carbon fiber cloth, carbon fiber paper or carbon felt, and the conductive substrate can serve as a current collector.
2. The flexible zinc-ion battery of claim 1, wherein: the conductive polymer is one or more of polyaniline or polyaniline derivatives, polypyrrole or polypyrrole derivatives, polythiophene or polythiophene derivatives.
3. The flexible zinc-ion battery of claim 1 or 2, wherein: the diaphragm is a non-woven fabric diaphragm or a glass fiber diaphragm.
4. The flexible zinc-ion battery of claim 1 or 2, wherein: the hydrogel electrolyte comprises a polymer matrix and zinc salt.
5. The flexible zinc-ion battery of claim 3, wherein: the hydrogel electrolyte comprises a polymer matrix and zinc salt.
6. The flexible zinc-ion battery of claim 5, wherein: the polymer matrix is one or a mixture of more than two of polyvinyl alcohol, polyacrylic acid, polyethylene oxide and polyethylene glycol terephthalate.
7. The flexible zinc-ion battery of claim 6, wherein: the zinc salt is one or more of zinc sulfate, zinc nitrate, zinc chloride, zinc acetate and zinc trifluoromethanesulfonate.
8. A method of making a flexible zinc-ion battery according to any one of claims 1 or 2 or 5 to 7, wherein: the method comprises the following steps:
(a) preparing a positive conductive polymer nanowire array:
one or more than two of amine derivatives, pyrrole or pyrrole derivatives, thiophene or thiophene derivatives are subjected to electrochemical polymerization reaction in a solution, and a conductive polymer nanowire array is obtained in situ on a conductive substrate and is used as a positive electrode;
(b) preparing a negative electrode zinc nanosheet array:
preparing a zinc nanosheet array by an electrochemical method, wherein the conductive substrate is a working electrode, the graphite sheet is a counter electrode, the saturated calomel electrode is a reference electrode, and the zinc nanosheet array is electrodeposited in zinc sulfate aqueous solution in situ on the conductive substrate and serves as a negative electrode;
(c) preparing a flexible zinc ion battery:
adding a polymer matrix and zinc salt into deionized water, stirring uniformly at 80-95 ℃, immersing the anode, the cathode and the diaphragm, taking out, pressing the anode and the cathode on two sides of the diaphragm, drying, and sealing to obtain the flexible zinc ion battery.
9. The method of manufacturing a flexible zinc-ion battery of claim 8, wherein:
the sum of the concentrations of one or more than two of aniline or aniline derivatives, pyrrole or pyrrole derivatives, and thiophene or thiophene derivatives in the solution in the step (a) is 0.1mol/L to 2 mol/L; adding a doping agent into the solution obtained in the step (a), wherein the doping agent is any one of hydrochloric acid, sulfuric acid, perchloric acid, phosphoric acid, p-toluenesulfonic acid or naphthalenesulfonic acid; the concentration of the dopant in the solution is 0.1mol/L to 2 mol/L; the current density of the electropolymerization of step (a) is 0.05mA cm-2To 2mA cm-2And the electropolymerization time is 18min to 720 min.
10. The method for preparing a flexible zinc-ion battery according to claim 9, wherein:
the concentration of zinc sulfate in the solution in the step (b) is 0.1mol/L to 2mol/L, and sodium sulfate is also added into the solutionAnd boric acid, the concentration of sodium sulfate is 0.2mol/L to 4mol/L, and the concentration of boric acid is 0.1mol/L to 1 mol/L; the current density of the electrodeposition in the step (b) is-10 mA cm-2To-100 mA cm-2The electrodeposition time is 10min to 160 min.
CN201911256480.7A 2019-12-10 2019-12-10 Flexible zinc ion battery and preparation method thereof Pending CN112952077A (en)

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CN114927699A (en) * 2022-07-20 2022-08-19 北京高德品创科技有限公司 Multifunctional polymer, preparation method thereof and flexible zinc ion battery
CN115249848A (en) * 2021-09-15 2022-10-28 青岛大学 Ultra-tensile fiber-based water-based zinc ion battery and preparation method thereof
CN116365055A (en) * 2022-12-26 2023-06-30 起源智能科技(嘉兴)有限公司 Neutral silver-zinc secondary battery based on electrochemical in-situ growth electrode and preparation method thereof

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN115249848A (en) * 2021-09-15 2022-10-28 青岛大学 Ultra-tensile fiber-based water-based zinc ion battery and preparation method thereof
CN114927699A (en) * 2022-07-20 2022-08-19 北京高德品创科技有限公司 Multifunctional polymer, preparation method thereof and flexible zinc ion battery
CN114927699B (en) * 2022-07-20 2022-09-16 北京高德品创科技有限公司 Multifunctional polymer, preparation method thereof and flexible zinc ion battery
CN116365055A (en) * 2022-12-26 2023-06-30 起源智能科技(嘉兴)有限公司 Neutral silver-zinc secondary battery based on electrochemical in-situ growth electrode and preparation method thereof

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