CN112864388A - Water-based zinc ion soft package battery and preparation method thereof - Google Patents

Water-based zinc ion soft package battery and preparation method thereof Download PDF

Info

Publication number
CN112864388A
CN112864388A CN202110104477.4A CN202110104477A CN112864388A CN 112864388 A CN112864388 A CN 112864388A CN 202110104477 A CN202110104477 A CN 202110104477A CN 112864388 A CN112864388 A CN 112864388A
Authority
CN
China
Prior art keywords
battery
soft package
zinc
zinc ion
powder
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.)
Granted
Application number
CN202110104477.4A
Other languages
Chinese (zh)
Other versions
CN112864388B (en
Inventor
李思睿
李政文
王瀚民
黎少伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Zhuoyue Power Technology Co ltd
Original Assignee
Guangzhou Zhuoyue Power Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Zhuoyue Power Technology Co ltd filed Critical Guangzhou Zhuoyue Power Technology Co ltd
Priority to CN202110104477.4A priority Critical patent/CN112864388B/en
Publication of CN112864388A publication Critical patent/CN112864388A/en
Application granted granted Critical
Publication of CN112864388B publication Critical patent/CN112864388B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01M10/36—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
    • 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
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • 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 relates to the field of water-system zinc ion batteries, in particular to a water-system zinc ion soft package battery and a preparation method thereof, wherein the water-system zinc ion soft package battery comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode. The water-based zinc ion soft package battery prepared by the invention has the following advantages: (1) high specific capacity and long cycle life; (2) the battery has wide temperature resistance and strong high-temperature stability; (3) adopt soft package packing, shape controllability, security promote, and the practicality is strong.

Description

Water-based zinc ion soft package battery and preparation method thereof
Technical Field
The invention relates to the field of water-system zinc ion batteries, in particular to a water-system zinc ion soft package battery and a preparation method thereof.
Background
Due to environmental pollution and energy crisis caused by the traditional energy storage technology, people continuously increase the demand on environment-friendly power grid energy storage equipment with high energy density and low cost, and the rapid development of various energy storage systems is promoted. Lithium ion batteries are widely used in commercial energy storage devices because of their advantages of high efficiency, high voltage, long cycle life, and the like. But the large-scale application of the lithium ion battery is seriously hindered due to high cost and many safety problems. As a new alternative energy storage technology with great development prospects, zinc ion rechargeable batteries are receiving attention due to their abundant natural resources, inherent safety and cost-effectiveness.
Compared to lithium ion batteries using flammable and toxic organic electrolytes, water-based Zinc Ion Batteries (ZIBs) based on water-based electrolytes are a novel energy storage system with low cost, environmental protection, and safety, and may be applied to power grid energy storage systems and wearable devices in the future. In recent years, research on positive electrodes, zinc negative electrodes and electrolyte solutions of water-based ZIBs has been advanced, but the water-based ZIBs still face great challenges in terms of positive electrodes and negative electrodes. Problems such as cathode dissolution, adverse effects from electrostatic interactions, zinc dendrites, corrosion, passivation and byproducts can lead to capacity degradation, low coulombic efficiency, short circuits and the like of the water system ZIBs, which severely limits the development and commercialization of the water system ZIBs.
The performance of zinc ion batteries depends to a large extent on the electrode material. In chinese patent CN102013526A, the positive electrode is made of manganese dioxide doped with metal elements; in patent CN102097662A, a certain amount of TiO2 or titanate is added to manganese dioxide positive electrode material; in patent CN102324579A, a porous carbon material is added in the zinc negative electrode, and zinc ions are preferentially deposited in the pores inside the porous carbon rather than on the surface of zinc powder particles or zinc sheets during the charging and discharging processes, so as to inhibit the formation of zinc dendrites and alkaline zinc sulfate precipitates, and improve the cycle performance of the zinc ion battery. None of the above patents fundamentally solves the problem of low capacity. Based on the above, the preparation of the water-based zinc ion soft package battery with high quality specific capacity and strong practicability becomes an urgent problem to be solved in the field.
Disclosure of Invention
The invention provides the water-system zinc ion soft package battery, so that the defects that dendritic crystals and corrosion easily occur to the negative electrode of the zinc ion battery in the prior art are overcome, the specific capacity and the cycle number of the prepared water-system zinc ion soft package battery are improved, the temperature resistance and the shape controllability are strong, and the application range is wide.
The invention provides a water-system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell, wherein the battery anode is arranged on the battery cathode; the negative electrode of the battery is a powder porous zinc electrode.
In a preferred embodiment, the raw material of the powder porous zinc electrode comprises, by weight, 85-96% of modified zinc powder, 2-6% of a conductive agent and 1-7% of a binder.
In a preferred embodiment, the modified zinc powder is quantum dot material coated zinc powder.
In a preferred embodiment, the quantum dot is at least one of a graphene quantum dot, a molybdenum quantum dot, and a boron quantum dot.
In a preferred embodiment, the conductive agent includes at least one of acetylene black, carbon nanotubes, and activated carbon.
In a preferred embodiment, the binder comprises at least one of acrylonitrile multipolymer, high molecular alcohol polymer, polytetrafluoroethylene and rubber polymer.
In a preferred embodiment, the battery positive electrode is at least one of manganese dioxide, vanadium pentoxide and metal ferricyanide.
In a preferred embodiment, the electrolyte is an aqueous sulfate solution.
In a preferred embodiment, the sulfate is zinc sulfate and/or lithium sulfate.
The invention provides a preparation method of a water-based zinc ion soft package battery, which comprises the following specific preparation steps:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Has the advantages that:
the water-based zinc ion soft package battery prepared by the invention has the following advantages:
(1) high specific capacity and long cycle life;
(2) the battery has wide temperature resistance and strong high-temperature stability;
(3) adopt soft package packing, shape controllability, security promote, and the practicality is strong.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
"Polymer" means a polymeric compound prepared by polymerizing monomers of the same or different types. The generic term "polymer" embraces the terms "homopolymer", "copolymer", "terpolymer" and "interpolymer". "interpolymer" means a polymer prepared by polymerizing at least two different monomers. The generic term "interpolymer" includes the term "copolymer" (which is generally used to refer to polymers prepared from two different monomers) and the term "terpolymer" (which is generally used to refer to polymers prepared from three different monomers). It also includes polymers made by polymerizing more monomers. "blend" means a polymer formed by two or more polymers being mixed together by physical or chemical means.
In order to solve the above problems, a first aspect of the present invention provides an aqueous zinc ion pouch battery, comprising a battery positive electrode, a battery negative electrode, a separator, an electrolyte and a pouch battery case; the negative electrode of the battery is a powder porous zinc electrode.
In some preferred embodiments, the raw material of the powder porous zinc electrode comprises, by weight, 85-96% of modified zinc powder, 2-6% of a conductive agent, and 1-7% of a binder.
In some preferred embodiments, the modified zinc powder is a quantum dot material coated zinc powder.
In some preferred embodiments, the quantum dot is at least one of a graphene quantum dot, a molybdenum quantum dot, and a boron quantum dot.
Further preferably, the quantum dots are graphene quantum dots.
In some preferred embodiments, the step of coating the zinc powder with the quantum dot material comprises:
adding 0.1-5g of quantum dot material powder into 100mL of ethanol water solution, performing ultrasonic dispersion for 20-40min, and stirring for 15-30 min; ultrasonic oscillation, shearing for 3-5h by using a mechanical shearing machine to obtain a quantum dot material dispersion liquid; and mixing the zinc powder raw material with the quantum dot material dispersion liquid, and performing ball milling and drying to obtain the quantum dot material coated zinc powder.
More preferably, the particle size of the zinc powder is 200-800 meshes. The zinc powder with the particle size of 200-800 meshes is commercially available, such as New Hunan New Weiling Metal science and technology company.
In some preferred embodiments, the volume fraction of ethanol in the aqueous ethanol solution is 1 to 5%.
In some preferred embodiments, the mixing ratio of the nano zinc powder raw material and the quantum dot material dispersion liquid is as follows: 5-30mL of quantum dot dispersion liquid is mixed into each 1g of zinc powder raw material.
In some preferred embodiments, the conductive agent comprises at least one of acetylene black, carbon nanotubes, and activated carbon.
In some preferred embodiments, the binder comprises at least one of acrylonitrile multipolymer, high molecular alcohol polymer, polytetrafluoroethylene and rubber polymer.
Further preferably, the binder is polytetrafluoroethylene.
More preferably, the polytetrafluoroethylene is a polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of the polytetrafluoroethylene is 56-64%. The polytetrafluoroethylene concentrated dispersion with the mass fraction of 56-64% can be commercially available, such as Wuhan Cabboda chemical Co.
In some preferred embodiments, the battery positive electrode is at least one of manganese dioxide, vanadium pentoxide, and metal ferricyanide.
In some preferred embodiments, the electrolyte is an aqueous sulfate solution.
In some preferred embodiments, the sulfate is zinc sulfate and/or lithium sulfate.
Further preferably, the sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is (2.5-4): 1.
the invention provides a preparation method of a water-based zinc ion soft package battery, which comprises the following specific preparation steps:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
In some preferred embodiments, the water-based zinc ion soft package battery prepared by the invention is particularly suitable for wearable electronic devices.
Examples
In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the raw materials are commercially available and the extraction methods of the extract are all conventional extraction methods, if not otherwise specified.
Example 1.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 2.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 96% of modified zinc powder, 2% of a conductive agent and 2% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture formed with dimethyl imidazole is dried in a drying ovenDrying and then calcining under an argon atmosphere with the procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 3.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 88% of modified zinc powder, 6% of a conductive agent and 6% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 4.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of zinc powder, 4% of a conductive agent and 4% of a binder.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 5.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The positive electrode of the battery is manganese dioxide and is purchased from Jiangsu Haolinghua chemical company Limited.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 6.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 80% of modified zinc powder, 10% of a conductive agent and 10% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 7.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2Drying the mixture with dimethylimidazole in a drying ovenThen calcining under argon atmosphere, the procedure is as follows: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 1: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 8.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is SBR emulsion which is purchased from Shanghai electric International trade company Limited and has the model of AL-3001A.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 9.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 60 meshes; the zinc powder having a particle size of 60 mesh was purchased from Tongxing Zinc oxide Co., Ltd, Aster county.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 5, mixing, grinding by using a mortar, and adding a proper amount of ethanol water solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; mixing alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Example 10.
The embodiment provides a water system zinc ion soft package battery, which comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the negative electrode of the battery is a powder porous zinc electrode.
The raw materials of the powder porous zinc electrode comprise, by weight, 92% of modified zinc powder, 4% of a conductive agent and 4% of a binder.
The modified zinc powder is zinc powder coated by a graphene quantum dot material.
The step of coating the zinc powder with the graphene quantum dot material comprises the following steps:
adding 3g of graphene quantum dot material powder into 100mL of ethanol aqueous solution, performing ultrasonic dispersion for 30min, and stirring for 24 min; performing ultrasonic oscillation, and shearing for 4 hours by using a mechanical shearing machine to obtain graphene quantum dot material dispersion liquid; and mixing the zinc powder raw material with the graphene quantum dot material dispersion liquid, and performing ball milling and drying to obtain the graphene quantum dot material coated zinc powder.
The graphene quantum dot material powder is purchased from Xian Qieyue biotechnology limited company.
The particle size of the zinc powder is 600 meshes; zinc powder with a particle size of 600 mesh was purchased from New Hunan New Weiling Metal New materials science and technology Co.
The volume fraction of ethanol in the ethanol aqueous solution is 3%.
The mixing ratio of the zinc powder raw material to the graphene quantum dot material dispersion liquid is as follows: and 20mL of graphene quantum dot material dispersion liquid is mixed in each 1g of zinc powder raw material.
The conductive agent is acetylene black which is purchased from Tianjin excellent union chemical technology Co., Ltd, and the particle size is 30 nm.
The adhesive comprises at least one of acrylonitrile multipolymer, high molecular alcohol polymer, polytetrafluoroethylene and rubber polymer.
The adhesive is polytetrafluoroethylene concentrated dispersion liquid, and the mass fraction of polytetrafluoroethylene is 60%; purchased from Wuhan Kabuda chemical Co., Ltd.
The battery positive electrode is manganese dioxide; the manganese dioxide is modified manganese dioxide, and the modification method comprises the following steps:
adding alpha-MnO2And dimethyl imidazole according to a mass ratio of 1: 1, mixing, grinding by using a mortar, and adding a proper amount of ethanol aqueous solution (95 wt%) to dissolve the dimethyl imidazole in the grinding process; adding alpha-MnO2The mixture with dimethylimidazole was dried in a drying oven and then calcined under an argon atmosphere for the following procedure: heating to 500 ℃ at the speed of 5 ℃/min, calcining for 30min, and cooling to obtain the modified manganese dioxide.
The electrolyte is a sulfate aqueous solution, wherein the molar concentration of sulfate is 3 mol/L.
The sulfate is zinc sulfate and lithium sulfate, and the weight ratio of the zinc sulfate to the lithium sulfate is 3: 1.
the specific preparation steps of the water system zinc ion soft package battery comprise:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
Performance test method
Specific capacity:
the method is characterized in that a cyclic charge-discharge test is carried out on a CT2001A battery cyclic test system, the standard capacity of current is tested by charging and discharging at a current density of 50mA/g, and the voltage interval is 0.6-2V.
Cycle number:
and (3) carrying out a cycle number test on the battery circulating system, testing the cycle performance of the battery by charging and discharging at a current density of 50mA/g, wherein the cycle number when the battery discharge depth is reduced to 80% represents the cycle performance of the battery. The number of cycles is set to be high above 1200 times, the number of cycles is set to be medium between 700 and 1200 times, and the number of cycles is set to be low below 700 times.
High-temperature stability:
the batteries prepared in the examples 1 to 10 are placed at 100 ℃ for 10 days, and the battery is observed whether the battery bulges or leaks; the evaluation grades are specifically as follows:
level 0: no change, i.e., no change that is perceptible;
level 1: very slight, i.e. just noticeable, changes;
and 2, stage: slight, i.e., visibly perceptible, changes;
and 3, level: moderate, i.e., a change that is clearly noticeable;
4, level: larger, i.e. with greater variation;
and 5, stage: severe, i.e. strongly varying.
Performance test data
TABLE 1 results of the Performance test of examples 1 to 10
Battery capacity mAh/g Number of cycles High temperature stability
Example 1 326 Height of 0
Example 2 314 Height of 0
Example 3 309 Height of 0
Example 4 174 Is low in 4
Example 5 169 Is low in 3
Example 6 198 Is low in 4
Example 7 299 In 1
Example 8 276 In 2
Example 9 258 Is low in 3
Example 10 283 In 1
Finally, it is pointed out that the foregoing examples are illustrative only, serving to explain some of the characteristics of the process according to the invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims (10)

1. A water system zinc ion soft package battery comprises a battery anode, a battery cathode, a diaphragm, electrolyte and a soft package battery shell; the method is characterized in that the negative electrode of the battery is a powder porous zinc electrode.
2. The aqueous zinc ion pouch cell as defined in claim 1, wherein the raw material of the powder porous zinc electrode comprises, by weight, 85-96% of modified zinc powder, 2-6% of conductive agent, and 1-7% of binder.
3. The aqueous zinc ion soft package battery as recited in claim 2, wherein the modified zinc powder is quantum dot material coated zinc powder.
4. The aqueous zinc ion soft package battery according to claim 3, wherein the quantum dots are at least one of graphene quantum dots, molybdenum quantum dots and boron quantum dots.
5. The aqueous zinc ion pouch battery according to claim 2, wherein the conductive agent comprises at least one of acetylene black, carbon nanotubes and activated carbon.
6. The aqueous zinc ion soft package battery according to claim 2, wherein the binder comprises at least one of acrylonitrile multipolymer, high molecular alcohol polymer, polytetrafluoroethylene and rubber polymer.
7. The water-based zinc ion soft package battery according to claim 1, wherein the battery positive electrode is at least one of manganese dioxide, vanadium pentoxide and metal ferricyanide.
8. The aqueous zinc ion pouch battery according to claim 1, wherein the electrolyte is an aqueous sulfate solution.
9. The aqueous zinc ion pouch battery according to claim 1, wherein the sulfate is zinc sulfate and/or lithium sulfate.
10. The preparation method of the aqueous zinc ion pouch cell according to any one of claims 1 to 9, characterized by comprising the following specific preparation steps:
s1, mixing modified zinc powder, a conductive agent and an adhesive, stirring at a high speed, ball-milling, and kneading to obtain a mixture; then uniformly coating the mixture on a nickel-plated copper net and pressing the mixture to obtain a battery cathode;
s2, sequentially stacking a battery anode, a diaphragm and a battery cathode into a soft package battery case, and fixing;
and S3, adding an electrolyte into the soft package battery shell, and packaging the shell after soaking to obtain a finished product.
CN202110104477.4A 2021-01-26 2021-01-26 Water-based zinc ion soft-package battery and preparation method thereof Active CN112864388B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110104477.4A CN112864388B (en) 2021-01-26 2021-01-26 Water-based zinc ion soft-package battery and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110104477.4A CN112864388B (en) 2021-01-26 2021-01-26 Water-based zinc ion soft-package battery and preparation method thereof

Publications (2)

Publication Number Publication Date
CN112864388A true CN112864388A (en) 2021-05-28
CN112864388B CN112864388B (en) 2023-07-25

Family

ID=76009267

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110104477.4A Active CN112864388B (en) 2021-01-26 2021-01-26 Water-based zinc ion soft-package battery and preparation method thereof

Country Status (1)

Country Link
CN (1) CN112864388B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114613980A (en) * 2022-03-30 2022-06-10 中南大学 Zinc ion battery composite negative electrode and preparation method and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784828A (en) * 2016-12-30 2017-05-31 尹宗杰 A kind of layer type casting moulding Graphene metallic composite and preparation method
CN109950477A (en) * 2017-12-21 2019-06-28 北京金羽新能科技有限公司 A kind of modified method in water system ion battery electrode materials surface
CN110364771A (en) * 2018-04-10 2019-10-22 中国科学院上海硅酸盐研究所 A kind of water system zinc ion soft-package battery and preparation method thereof
CN111825119A (en) * 2019-04-23 2020-10-27 赵彦霖 Preparation method of zinc ion battery positive electrode material
CN112259722A (en) * 2020-10-28 2021-01-22 苏州大学 Water system mixed ion secondary battery and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106784828A (en) * 2016-12-30 2017-05-31 尹宗杰 A kind of layer type casting moulding Graphene metallic composite and preparation method
CN109950477A (en) * 2017-12-21 2019-06-28 北京金羽新能科技有限公司 A kind of modified method in water system ion battery electrode materials surface
CN110364771A (en) * 2018-04-10 2019-10-22 中国科学院上海硅酸盐研究所 A kind of water system zinc ion soft-package battery and preparation method thereof
CN111825119A (en) * 2019-04-23 2020-10-27 赵彦霖 Preparation method of zinc ion battery positive electrode material
CN112259722A (en) * 2020-10-28 2021-01-22 苏州大学 Water system mixed ion secondary battery and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114613980A (en) * 2022-03-30 2022-06-10 中南大学 Zinc ion battery composite negative electrode and preparation method and application thereof

Also Published As

Publication number Publication date
CN112864388B (en) 2023-07-25

Similar Documents

Publication Publication Date Title
CN110660965B (en) Negative plate and preparation method thereof, lithium ion battery and preparation method and application thereof
CN106229498B (en) Cathode material suitable for water-based metal ion battery and preparation method thereof
US20180366720A1 (en) Positive active material and lithium-ion secondary battery
WO2015018114A1 (en) Aqueous composite binder of natural polymer derivative-conducting polymer and application thereof
CN108281610A (en) A kind of lithium ion battery of anode composite pole piece
CN107958997B (en) Positive electrode slurry, positive electrode plate and lithium ion battery
CN110993891A (en) Silicon-containing negative plate, preparation method thereof and lithium ion battery
CN111792633A (en) Method for directly recycling lithium iron phosphate in waste lithium iron phosphate battery
CN112349893A (en) Method for inhibiting growth of zinc dendrite by polydopamine film
CN101740758A (en) Preparation method of vulcanized conducting polymer composite anode for lithium ion battery
CN113140731B (en) All-solid-state lithium battery and preparation method thereof
CN107994207B (en) Lithium ion battery and cathode plate thereof
CN110190258B (en) Silicon-carbon composite material water-based composite slurry, preparation method thereof and lithium ion battery
CN115207263A (en) Secondary battery
CN109167036B (en) TiN and conductive polymer composite modified lithium ion layered ternary positive electrode material and preparation method thereof
CN111081971A (en) Preparation method of electrode of water-based zinc ion battery, electrode and battery
CN112838213A (en) Zinc-manganese battery containing modified nano zinc powder and preparation method thereof
CN112864388B (en) Water-based zinc ion soft-package battery and preparation method thereof
CN108269992B (en) High-capacity lithium ion battery composite cathode material and preparation method thereof
CN113285178A (en) Oxide-coated lithium lanthanum zirconium oxide material, diaphragm material, lithium battery and preparation method
CN113471512A (en) Low-temperature lithium battery
CN108417764A (en) A kind of lithium ion battery separator and preparation method thereof
CN112599861A (en) Preparation method of lithium cobaltate power battery
WO2023185548A1 (en) Modified lithium manganese iron phosphate positive electrode material, and preparation method and application thereof
CN115566170A (en) Preparation method of high-energy-density quick-charging lithium ion battery cathode material

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant