CN112038606A - Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material - Google Patents

Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material Download PDF

Info

Publication number
CN112038606A
CN112038606A CN202010939059.2A CN202010939059A CN112038606A CN 112038606 A CN112038606 A CN 112038606A CN 202010939059 A CN202010939059 A CN 202010939059A CN 112038606 A CN112038606 A CN 112038606A
Authority
CN
China
Prior art keywords
cav
preparation
calcium vanadate
composite material
derived carbon
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.)
Pending
Application number
CN202010939059.2A
Other languages
Chinese (zh)
Inventor
聂平
赵翠梅
林丽
常立民
徐天昊
薛向欣
王海瑞
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.)
Jilin Normal University
Original Assignee
Jilin Normal University
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 Jilin Normal University filed Critical Jilin Normal University
Priority to CN202010939059.2A priority Critical patent/CN112038606A/en
Publication of CN112038606A publication Critical patent/CN112038606A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a preparation method of a polydopamine-derived carbon-coated calcium vanadate nanosheet composite material, belongs to the technical field of electrode materials of lithium ion batteries and sodium ion batteries, and aims to solve the problem of three-dimensional nano CaV4O9The first ring of coulomb efficiency is lower, the stability is not good in the longer charge-discharge cycle process,the preparation method comprises the following steps: firstly, calcium vanadate is hydrothermally generated by calcium chloride and vanadyl acetylacetonate, then Tris solution is prepared, calcium vanadate is added into a mixed solution of dopamine hydrochloride and Tris for polymerization coating, and finally, the mixture is calcined at constant temperature to obtain nitrogen-doped carbon-coated CaV4O9The composite material of (1). The composite process is simple, forms a composite structure, increases the specific surface area and the pore size distribution, is beneficial to improving the electrochemical performance, is environment-friendly and is suitable for large-scale production.

Description

Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material
Technical Field
The invention belongs to the technical field of electrode materials of lithium ion batteries and sodium ion batteries, and relates to a polydopamine-derived carbon-coated calcium vanadate nanosheet (CaV)4O9Application of the preparation method of the @ PDA-C) composite material in lithium ion batteries and sodium ion batteries. In particular to a nitrogen-doped carbon composite calcium vanadate used as an electrode material of a lithium ion battery and a sodium ion battery.
Background
The use of non-renewable resources such as fossil fuels (e.g., coal, oil, and natural gas) for energy-related production activities has created serious economic and environmental problems worldwide. Under the increasingly prominent energy crisis, how to find and utilize new energy sources, especially renewable energy sources, becomes a great challenge for all mankind. Solar energy, wind energy and the like are new energy supply modes which are most widely applied and have the largest installed capacity at present, but the energy sources are generally intermittent, and high-performance energy storage equipment and energy conversion devices are required to be supplemented when the energy sources are applied. Among them, electrochemical energy storage devices such as supercapacitors, fuel cells, and secondary batteries represented by lithium ion batteries and sodium ion batteries are the hot spots of research, and particularly rechargeable batteries have the advantages of flexible energy storage mode, convenience in use, and highest energy conversion rate, and are the best choice for storing electric power by using chemical energy. Among them, the lithium ion battery has the highest share. The Lithium Ion Battery (LIB) has the outstanding advantages of high energy density, environmental friendliness and high efficiency. Currently, lithium ion batteries have been widely used in portable electronic products and electric vehicles. However, the reserve of lithium in nature is limited, and in particular, lithium resources are extremely scarce in China. The physical property and chemical property of sodium are similar to those of lithium, the theoretical specific capacity of sodium is 1166mAh/g, and more importantly, the resource storage capacity of metal sodium on the earth is quite rich. Therefore, sodium ion batteries (NIBs) are expected to be a replacement for lithium ion batteries. In addition to this, lithium and sodium both have suitable redox potentials, and LIB and NIB both have the same "rocking chair" reaction mechanism, which means that the material part used in LIB can also be used in NIB. However, both LIB and NIB have problems with dendrites as the anode during cycling, with uncontrolled dendrite growth during repeated charge and discharge cycles, causing battery safety problems. And the sodium ion battery has poor cycling stability and low specific capacity. Therefore, the development of high performance electrode materials is critical for either LIBs or NIBs.
Among a plurality of electrode materials, vanadium oxide has unique advantages, high theoretical capacity (the capacity is more than 300mAh/g), abundant sources and attractive electrode material. The vanadium oxides are of various kinds, among which calcium vanadate (CaV)4O9) Most representative. CaV4O9Is a novel inorganic layered structure material, has activity in both lithium ion batteries and sodium ion batteries, and is found to be three-dimensional CaV4O9Nanomaterials have higher area capacities. Especially under the nanometer size, larger specific surface area and unique sheet structure, so that CaV4O9The volume change is very small during charging and discharging, and the CaV is effectively solved4O9The volume expansion problem of the nanometer material during the circulation greatly improves the electrochemical performance and shows good circulation stability under high-quality load. However, the beauty deficiency is three-dimensional nano CaV4O9The first turn of coulombic efficiency is low and the stability is still to be improved in the longer charge-discharge cycle process.
Disclosure of Invention
In order to solve this problem,the invention adopts the methods of mechanical stirring and high-temperature calcination to perform three-dimensional CaV4O9The surface of the nano material is coated with a layer of polybamine derived carbon (PDA-C), and a nitrogen-doped carbon composite structure is obtained after high-temperature calcination, and the technical scheme adopted by the invention is as follows:
the preparation method of the polydopamine-derived carbon-coated calcium vanadate nanosheet composite material comprises the following specific steps:
first, hydrothermal synthesis method for preparing CaV4O9The method comprises the following steps:
1) 0.05g of calcium chloride and 0.786g of vanadyl acetylacetonate were dissolved in 22ml of absolute ethanol and 3ml of distilled water.
2) Stirring for one hour, transferring the system to a 50ml reaction kettle after the system is uniform, and preserving the temperature for 3 hours at 200 ℃.
3) Naturally cooling to room temperature, washing with acetone and deionized water, suction-filtering, collecting precipitate, drying the precipitate in a vacuum drying oven at 80 deg.C for 3 hr, grinding the dried solid in a mortar, and collecting for use.
Secondly, preparing a medium Tris solution, which comprises the following steps:
1) 0.7268g of tris (hydroxymethyl) aminomethane were dissolved in 50ml of deionized water.
2) The pH was measured with a pH meter and adjusted to 8.5 with 6ml/L HCl.
Third, polydopamine derived carbon-coated calcium vanadate nanosheet composite material (CaV)4O9@ PDA-C), the procedure was as follows:
1) 0.2g of CaV was taken4O9Dissolving in 50ml of tris solution to obtain CaV4O9Uniformly dispersing the solution in a tris solution, adding 0.05-0.075 g of dopamine hydrochloride, mixing, and stirring the solution for 10-12 hours.
2) Washing with deionized water, centrifuging, drying the solid in a vacuum drying oven at 60 deg.C for 12 hr, and collecting black solid.
3) In a tubular furnace with argon atmosphere, the temperature is raised to 150 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 1 hour at constant temperature, then the temperature is raised to 500 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 2 hours at constant temperature, and a sample is collected after cooling.
The invention has the beneficial effects that:
1. firstly, dopamine is used as a carbon source to obtain nitrogen-doped carbon-coated CaV4O9By means of the composite structure of (1), the CaV is successfully improved4O9Low specific capacity, low first-turn coulombic efficiency and unstable cycle in the cycle process.
2. Second, CaV4O9@ PDA-C showed stable cycling performance and excellent rate performance in both LIB and SIB. The optimized electrochemical performance may be derived from CaV4O9The @ PDA-C has small volume change in the charging and discharging processes, and the nitrogen-doped carbon coating structure has excellent structural stability and excellent cycle stability; the large specific surface area and the rich pore structure are beneficial to improving the wettability of the electrolyte, provide more active sites for the electrolyte, shorten the path for the transportation of lithium ions and sodium ions, and keep the good nano effect of the nano material.
3. Again, we are exploring to optimize CaV4O9In the process of material cycle stability, CaV is4O9The direction is expanded in the field of energy storage.
Drawings
FIG. 1 shows the composite CaV of example 14O9Scanning electron micrographs of @ PDA-C;
FIG. 2 shows the CaV composite of example 14O9A charging and discharging curve diagram of @ PDA-C in the lithium ion battery;
FIG. 3 shows the CaV composite of example 14O9The charge-discharge curve diagram of @ PDA-C in the sodium ion battery;
FIG. 4 shows CaV, a composite material, according to example 14O9A magnification diagram of @ PDA-C in a lithium ion battery;
FIG. 5 shows CaV, a composite material, according to example 14O9Power plot of @ PDA-C in sodium ion battery;
Detailed Description
The technical solution of the present invention is further explained and illustrated below with reference to specific examples.
Example 1:
1) taking 0.05g of CaCl2Dissolving 0.786g of vanadyl acetylacetonate in 22ml of absolute ethyl alcohol and 3ml of distilled water, stirring for one hour, transferring the mixture into a 50ml reaction kettle after the system is uniform, keeping the temperature at 200 ℃ for 3 hours, naturally cooling to room temperature, washing with acetone and deionized water, performing suction filtration, collecting the precipitate, drying the precipitate in a vacuum drying oven at 80 ℃ for 3 hours, grinding the dried solid in a mortar, and collecting the solid for later use.
2) Method for preparing 50ml of Tris (hydroxymethyl) aminomethane (Tris) solution with pH of 8.5: 0.7268g Tris was dissolved in 50ml deionized water, the pH was measured with a pH meter and adjusted to 8.5 with 6ml/L HCl.
3) 0.2g of CaV was taken4O9Dissolving in 50ml Tris solution to obtain CaV solution4O9Uniformly dispersing in a Tris solution, adding 0.05g of dopamine hydrochloride, mixing, stirring the solution for 12 hours, washing with deionized water, centrifuging, drying the solid in a vacuum drying oven at 60 ℃ for 12 hours, and collecting black solid for later use. Carbonizing the black solid: in a tubular furnace with argon atmosphere, the temperature is raised to 150 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 1 hour at constant temperature, then the temperature is raised to 500 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 2 hours at constant temperature, and a sample is collected after cooling.
The composite electrode material is observed by a scanning electron microscope, and the prepared composite electrode material is agglomerated under the coating of nitrogen-doped carbon derived from PDA (personal digital Assistant), but still keeps a flower-shaped spherical structure, and the nanosheet is clear and visible and has a large specific surface area. CaV4O9The voltage range of @ PDA-C is 0.01-3V when the current density is 100mA/g, the reversible capacity in the lithium ion battery can reach 647mAh/g, the first-circle coulombic efficiency is 63.9%, the reversible capacity in the sodium ion battery can reach 208mAh/g, and the first-circle coulombic efficiency is 67.3%.
Example 2:
1) taking 0.05g of CaCl2Dissolving 0.786g vanadyl acetylacetonate in 22ml of absolute ethanol and 3ml of distilled water, stirring for one hour, transferring the mixture into a 50ml reaction kettle after the system is uniformKeeping the temperature at 200 ℃ for 3 hours, naturally cooling to room temperature, washing with acetone and deionized water, filtering, collecting the precipitate, drying the precipitate in a vacuum drying oven at 80 ℃ for 3 hours, grinding the dried solid in a mortar, and collecting for later use.
2) Method for preparing 50ml of Tris (hydroxymethyl) aminomethane (Tris) solution with pH of 8.5: 0.7268g Tris was dissolved in 50ml deionized water, the pH was measured with a pH meter and adjusted to 8.5 with 6ml/L HCl.
3) 0.2g of CaV was taken4O9Dissolving in 50ml Tris solution to obtain CaV solution4O9Uniformly dispersing in a Tris solution, adding 0.05g of dopamine hydrochloride, mixing, stirring the solution for 10 hours, washing with deionized water, centrifuging, drying the solid in a vacuum drying oven at 60 ℃ for 12 hours, and collecting black solid for later use. Carbonizing the black solid: in a tubular furnace with argon atmosphere, the temperature is raised to 150 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 1 hour at constant temperature, then the temperature is raised to 500 ℃ at the heating rate of 3 ℃/min, the mixture is calcined for 2 hours at constant temperature, and a sample is collected after cooling.
Example 3:
1) taking 0.05g of CaCl2Dissolving 0.786g of vanadyl acetylacetonate in 22ml of absolute ethyl alcohol and 3ml of distilled water, stirring for one hour, transferring the mixture into a 50ml reaction kettle after the system is uniform, keeping the temperature at 200 ℃ for 3 hours, naturally cooling to room temperature, washing with acetone and deionized water, performing suction filtration, collecting the precipitate, drying the precipitate at 80 ℃ in a vacuum drying oven for 3 hours, grinding the dried solid in a mortar, and collecting the solid for later use.
2) Method for preparing 50ml of Tris (hydroxymethyl) aminomethane (Tris) solution with pH of 8.5: 0.7268g Tris was dissolved in 50ml deionized water, the pH was measured with a pH meter and adjusted to 8.5 with 6ml/L HCl.
3) 0.2g of CaV was taken4O9Dissolving in 50ml Tris solution to obtain CaV solution4O9After the solid is uniformly dispersed in a Tris solution, 0.075g of dopamine hydrochloride is added, the mixed solution is stirred for 10 hours, then the solution is washed by deionized water, the solid is placed into a vacuum drying oven for drying for 12 hours at the temperature of 60 ℃ after centrifugation, and black solid is collected for later use. Carbonizing the black solid: in a tube furnace under argon atmosphere at a rate of 3 deg.C/minThe temperature rising rate is increased to 150 ℃, the mixture is calcined for 1 hour at constant temperature, then the mixture is heated to 500 ℃ at the temperature rising rate of 3 ℃/min, the mixture is calcined for 2 hours at constant temperature, and a sample is collected after cooling.

Claims (5)

1. The preparation method of the polydopamine-derived carbon-coated calcium vanadate nanosheet composite material comprises the following specific steps:
1) 0.2g of CaV was taken4O9Dissolving in 50ml of tris solution to obtain CaV4O9Uniformly dispersing the solution in a tris solution, adding 0.05-0.075 g of dopamine hydrochloride, and mixing the solution and stirring for 10-12 hours;
2) washing with deionized water, centrifuging, drying the solid in a vacuum drying oven at 60 deg.C for 12 hr, and collecting black solid;
3) in an argon atmosphere tube furnace, heating to 150 ℃ at the heating rate of 3 ℃/min, calcining for 1 hour at constant temperature, then heating to 500 ℃ at the heating rate of 3 ℃/min, calcining for 2 hours at constant temperature, cooling and collecting a sample;
CaV described in step 1)4O9The method is characterized in that CaV is prepared by a hydrothermal method, calcium chloride is used as a calcium source, vanadyl acetylacetonate is used as a vanadium source and the reaction is carried out for 3 hours at 200 DEG C4O9Nanosheets;
in the step 1), the pH value of the tris solution is 8.5, and the concentration is 1.2 mol/L.
2. The method of claim 1, wherein the CaV is a poly-dopamine-derived carbon-coated calcium vanadate nanosheet composite4O9The preparation method comprises the following specific steps of a hydrothermal method:
1) dissolving 0.05g of calcium chloride and 0.786g of vanadyl acetylacetonate in 22ml of absolute ethanol and 3ml of distilled water;
2) stirring for one hour, transferring the system into a 50ml reaction kettle after the system is uniform, and preserving the heat for 3 hours at 200 ℃;
3) naturally cooling to room temperature, washing with acetone and deionized water, suction-filtering, collecting precipitate, drying the precipitate in a vacuum drying oven at 80 deg.C for 3 hr, grinding the dried solid in a mortar, and collecting for use.
3. The preparation method of the polydopamine-derived carbon-coated calcium vanadate nanosheet composite material according to claim 1, wherein a preparation method of a tris solution comprises the following specific steps:
1) 0.7268g of trihydroxymethyl aminomethane is dissolved in 50ml of deionized water;
2) the pH was measured with a pH meter and adjusted to 8.5 with 6ml/L HCl.
4. The dopamine-derived carbon-coated calcium vanadate nanosheet composite material prepared according to the preparation method of any one of claims 1 to 3.
5. Use of the dopamine-derived carbon-coated calcium vanadate nanosheet composite of claim 4 for a lithium-ion or sodium-ion battery negative electrode.
CN202010939059.2A 2020-09-09 2020-09-09 Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material Pending CN112038606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010939059.2A CN112038606A (en) 2020-09-09 2020-09-09 Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010939059.2A CN112038606A (en) 2020-09-09 2020-09-09 Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material

Publications (1)

Publication Number Publication Date
CN112038606A true CN112038606A (en) 2020-12-04

Family

ID=73585151

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010939059.2A Pending CN112038606A (en) 2020-09-09 2020-09-09 Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material

Country Status (1)

Country Link
CN (1) CN112038606A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112670494A (en) * 2021-01-20 2021-04-16 广东工业大学 Vanadate electrode material and preparation method and application thereof
CN114171847A (en) * 2021-12-09 2022-03-11 江苏厚生新能源科技有限公司 High-flame-retardance and high-wettability lithium ion battery diaphragm and preparation method thereof
CN115663169A (en) * 2022-12-13 2023-01-31 北京科技大学 Vanadium oxide nanoflower and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107845796A (en) * 2017-10-27 2018-03-27 东北大学秦皇岛分校 A kind of carbon doping vanadium phosphate sodium positive electrode and its preparation method and application
CN108316008A (en) * 2018-01-15 2018-07-24 华中科技大学 A kind of vanadic sulfide/vanadium carbide composite nano plate assembly, it is prepared and application
CN110042407A (en) * 2019-03-15 2019-07-23 江苏大学 Cobalt phosphate-poly-dopamine-pucherite tri compound optoelectronic pole preparation method and application
CN111268727A (en) * 2020-02-17 2020-06-12 河南科技大学 Calcium vanadate composite material and preparation method and application thereof
CN111320206A (en) * 2020-03-02 2020-06-23 吉林师范大学 2D-CaV for lithium ion and sodium ion battery4O9Nano sheet material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107845796A (en) * 2017-10-27 2018-03-27 东北大学秦皇岛分校 A kind of carbon doping vanadium phosphate sodium positive electrode and its preparation method and application
CN108316008A (en) * 2018-01-15 2018-07-24 华中科技大学 A kind of vanadic sulfide/vanadium carbide composite nano plate assembly, it is prepared and application
CN110042407A (en) * 2019-03-15 2019-07-23 江苏大学 Cobalt phosphate-poly-dopamine-pucherite tri compound optoelectronic pole preparation method and application
CN111268727A (en) * 2020-02-17 2020-06-12 河南科技大学 Calcium vanadate composite material and preparation method and application thereof
CN111320206A (en) * 2020-03-02 2020-06-23 吉林师范大学 2D-CaV for lithium ion and sodium ion battery4O9Nano sheet material and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112670494A (en) * 2021-01-20 2021-04-16 广东工业大学 Vanadate electrode material and preparation method and application thereof
CN114171847A (en) * 2021-12-09 2022-03-11 江苏厚生新能源科技有限公司 High-flame-retardance and high-wettability lithium ion battery diaphragm and preparation method thereof
CN114171847B (en) * 2021-12-09 2023-09-01 江苏厚生新能源科技有限公司 High-flame-retardance high-wettability lithium ion battery diaphragm and preparation method thereof
CN115663169A (en) * 2022-12-13 2023-01-31 北京科技大学 Vanadium oxide nanoflower and preparation method thereof

Similar Documents

Publication Publication Date Title
CN105932234A (en) Doped porous carbon spheres used for negative electrode material of sodium ion battery and preparation method for doped porous carbon spheres
CN112038606A (en) Preparation method of polydopamine-derived carbon-coated calcium vanadate nanosheet composite material
CN109659544B (en) Preparation method of graphene-coated bimetallic sulfide lithium/sodium ion battery negative electrode material
CN108878826B (en) Sodium manganate/graphene composite electrode material and preparation method and application thereof
CN105870417A (en) Preparation method for tungsten disulfide/carbon nanotube negative electrode composite material of sodium ion battery
CN104993116B (en) A kind of self assembly anode material for lithium-ion batteries V2O5Preparation method
CN106299344B (en) A kind of sodium-ion battery nickel titanate negative electrode material and preparation method thereof
CN113422048B (en) Preparation method and application of anode material of water-based zinc ion battery
CN107591522A (en) A kind of preparation method of the spherical V2O3/C materials of sodium-ion battery negative pole
CN110364366A (en) A kind of high-performance electric chemistry capacitor anode material molybdenum dioxide and nitrogen-doped carbon composite material and preparation method and application
CN110371936A (en) A kind of preparation method and applications of interlamellar spacing adjustable sodium-ion battery copper selenide nano-chip arrays
CN108110250A (en) Zinc manganate/lithium iron oxide ion battery cathode material and preparation method thereof
CN109360961B (en) Hollow composite microsphere for lithium-sulfur battery positive electrode material and preparation method thereof
CN108695505B (en) Lithium ion battery composite negative electrode material and preparation method thereof
CN112830521A (en) F-doped P2-Na0.7MnO2Electrode material and preparation method thereof
CN108448073B (en) Lithium ion battery C @ TiO2Composite negative electrode material and preparation method thereof
CN108023085B (en) Preparation method of carbon-coated tin dioxide nanoparticles
CN110048099A (en) Electrode material of sodium-ion battery and its preparation method and application
CN110098398B (en) Preparation method and application of honeycomb-like sulfur-doped carbon material
CN108281620A (en) A kind of preparation method of anode material of lithium-ion battery titanium dioxide
CN107275580A (en) A kind of long circulation life height ratio capacity lithium sulfur battery anode material and lithium-sulphur cell positive electrode and its preparation
CN114890479B (en) Water-based zinc ion battery positive electrode material, and preparation method and application thereof
CN111180670A (en) Based on controllable TiO2Method for preparing aluminum ion battery anode by microspheres
CN113735180B (en) Method for preparing sodium ion battery anode material by using LDH-based precursor to obtain cobalt iron sulfide
CN111211325B (en) Lithium ion battery cathode material and preparation method and application thereof

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20201204