CN110880595B - Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material - Google Patents
Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material Download PDFInfo
- Publication number
- CN110880595B CN110880595B CN201911089596.6A CN201911089596A CN110880595B CN 110880595 B CN110880595 B CN 110880595B CN 201911089596 A CN201911089596 A CN 201911089596A CN 110880595 B CN110880595 B CN 110880595B
- Authority
- CN
- China
- Prior art keywords
- cuo
- lithium ion
- ion battery
- copper foil
- preparation
- 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.)
- Active
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
- H01M4/58—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
- H01M4/5805—Phosphides
-
- 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
- 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
-
- 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
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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
-
- 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
Abstract
The invention provides a Cu 3 Method for preparing P-CuO composite flexible lithium ion battery cathode material, cu 3 P and CuO are compounded in situ and stably grow on the surface of the copper foil, and the method comprises the following specific steps: placing a copper foil in a muffle furnace for preoxidation treatment at 100-300 ℃ for 15min-1h, weighing sodium hypophosphite, flatly placing the sodium hypophosphite at the bottom of a ceramic material boat, placing the preoxidized copper foil right above the ceramic material boat, covering the copper hypophosphite with foam copper, placing the ceramic material boat in a tube furnace, taking argon as a protective gas, heating at the speed of 1~5 ℃/min, sintering at the temperature of 250-350 ℃, keeping the temperature for 15min-5h, and naturally cooling to obtain Cu 3 The P-CuO flexible electrode material is used as a negative electrode of a lithium ion battery and shows good electrochemical performance. The invention prepares Cu with certain flexibility for the first time 3 P-CuO composite lithium ion battery cathode material. The synthesis process is simple and novel, easy to operate and low in synthesis cost; the obtained sample has good conductivity and good crystallization performance; electrochemical performance tests show that the material has obvious charge and discharge platforms and better cycle stability.
Description
Technical Field
The invention relates to a composite lithium ion battery cathode material with flexibility, in particular to Cu 3 A preparation method of a P-CuO composite flexible lithium ion battery cathode material belongs to the field of electrochemical power sources.
Background
The energy source is the material foundation that supports the entire human civilization. With the rapid development of social economy, the dependence of people on energy is continuously improved. At present, a great deal of traditional fossil energy such as coal, petroleum, natural gas and the like are developed and used, the problems of air pollution, emission of greenhouse gas and the like are increasingly prominent, and the life of people is directly influenced. With the increasingly serious energy crisis and environmental pollution, changing the existing unreasonable energy structure is the first problem facing the sustainable development of human beings. Therefore, the search for renewable clean and environment-friendly alternative energy sources is urgent. Renewable clean energy sources such as wind energy, water energy and solar energy which are developed and utilized at present are random and intermittent, so that the development of high-performance energy storage equipment is a new challenge.
As a high-performance energy storage device, the lithium ion battery has advantages of high specific capacity, high cycle performance, environmental friendliness, no memory effect, and the like, and occupies a leading position in the current energy storage market, and is widely applied to portable electronic devices and power vehicles. At present, the commercial lithium ion battery cathode material is mainly a graphite carbon material, the lower theoretical capacity and the potential safety hazard of lithium dendrite precipitation are keys for restricting the development of the lithium ion battery cathode material, and the development of a novel lithium ion battery cathode material is particularly urgent. Copper phosphide is a promising anode material, and is an ideal lithium ion battery cathode material due to a safer charging and discharging voltage platform and a higher volume specific capacity. Cu (copper) 3 P exhibits poor electrochemical performance due to its poor electronic conductivity and volume effects during cycling. Therefore, research has been focused primarily on enhancing Cu 3 The conductivity of the P material and how to improve the cycling performance of the material. Based on the background, the invention uses sodium hypophosphite as a phosphorus source, uses the pre-oxidized copper foil as a copper source, and prepares the Cu with certain flexibility for the first time by low-temperature gas-solid reaction and controlling the phosphating amount 3 The P-CuO flexible electrode material is used as a lithium ion battery cathode material, and shows good electrochemical performance and cycling stability.
Disclosure of Invention
The invention aims to successfully prepare Cu by taking sodium hypophosphite and copper foil as raw materials through pre-oxidation and low-temperature gas-solid reaction and controlling the phosphating process 3 P-CuO flexible electrode material is used as the cathode of the lithium ion battery. The principle is that partial copper oxide is obtained on the surface of copper foil by utilizing the pre-oxidation process, and then PH is decomposed by sodium hypophosphite 3 Gas direct reduction of copper oxide to Cu 3 P, complete phosphating of the copper oxide is avoided by covering the copper foil with copper foam, the remaining copper matrix gives it a certain flexibility, and the Cu obtained 3 P and CuO are uniformly compositely grown on the surface of the copper foil and have a certain degreeThe copper foil is used as a current collector and a matrix to enhance the conductivity of the material and control the volume effect of the material, so that the Cu 3 The P-CuO flexible electrode material has better electrochemical performance when being used as a lithium ion battery cathode material.
The preparation method of the invention specifically comprises the following steps: cutting a copper foil into certain small blocks, placing the small blocks in a muffle furnace at 100-300 ℃ for preoxidation treatment for 15min-1h (as a preferred scheme, the preoxidation temperature is 100 ℃, the preoxidation treatment time is 15 min), weighing a certain amount of sodium hypophosphite, flatly paving the sodium hypophosphite at the bottom of a ceramic material boat, placing the preoxidized copper foil right above the ceramic material boat (the addition amount of the sodium hypophosphite is 10-50 times of the mass of the copper foil), covering the copper hypophosphite with copper foam, placing the ceramic material boat in a tube furnace, under the protection of an inert atmosphere of argon or nitrogen, heating up at a speed of 1~5 ℃/min, sintering at a temperature of 250-350 ℃, and keeping the temperature for 15min-5h (as a preferred condition, in the sintering process, the heating up rate is 3 ℃/min, the sintering temperature is 300 ℃, the keeping time is 30 min), and naturally cooling to obtain Cu 3 The invention discloses a P-CuO flexible electrode material, and Cu with certain flexibility is prepared for the first time 3 The P-CuO flexible electrode material is used as a lithium ion battery cathode.
According to the above, the present invention also provides Cu 3 Preparing a citric acid solution with a certain concentration (the concentration range of the citric acid solution is 1-10g/L), treating a small piece of foam copper cut into a certain size for 10-30min by using the citric acid solution, drying the foam copper, then placing the foam copper in a muffle furnace at 100-300 ℃ for preoxidation treatment for 15min-1h, weighing a certain amount of sodium hypophosphite, flatly placing the sodium hypophosphite at the bottom of a ceramic material boat, placing the preoxidized foam copper right above the ceramic material boat, placing the ceramic material boat in a tubular furnace, under the condition of taking inertia as protective gas, heating at a speed of 1~5 ℃/min, sintering at a temperature of 300-400 ℃, preserving the heat for 15min-5h, and naturally cooling to obtain the Cu 3 P-CuO/C composite electrode material (as a preferred scheme, the inert atmosphere is nitrogen or argon, the heating rate is 3 ℃/min, the sintering temperature is 350 ℃, and the heat preservation time is 1 h) 3 P-C5363 and the uO/C composite electrode material is used as the negative electrode of the lithium ion battery.
The invention relates to Cu 3 The P-CuO flexible electrode material and the preparation method thereof have the following remarkable characteristics:
(1) The synthesis method is simple and novel, easy to operate and low in cost;
(2) The obtained sample has good conductivity, good crystallization performance and high purity;
(3) Electrochemical performance tests show that the material has obvious charge and discharge platforms and better cycle stability.
Drawings
Figure 1 XRD pattern of the sample prepared in example 1.
FIG. 2 SEM image of sample prepared in example 1.
FIG. 3 Cyclic voltammogram of the sample prepared in example 1.
FIG. 4 is a graph of (a) first charge and discharge curves and (b) cycle performance of samples prepared in example 1.
FIG. 5 is a graph of (a) first charge and discharge curves and (b) cycle performance for samples prepared according to example 2.
FIG. 6 is a graph of (a) first charge and discharge curves and (b) cycle performance for samples prepared in example 3.
FIG. 7 SEM photograph of samples prepared in example 4.
FIG. 8 Cyclic voltammogram of the sample prepared in example 4.
FIG. 9 is a graph of (a) first charge and discharge curves and (b) cycle performance for samples prepared according to example 4.
FIG. 10 is a graph of (a) first charge and discharge curves and (b) cycle performance of samples prepared according to example 5.
FIG. 11 is a graph of (a) first charge and discharge curves and (b) cycle performance for samples prepared in example 6.
Detailed Description
Example 1
Cutting copper foil into 1 × 4cm pieces, pre-oxidizing in muffle furnace at 100 deg.C for 15min, weighing 0.4g sodium hypophosphite, and spreadingPlacing the pre-oxidized copper foil right above the ceramic material boat at the bottom of the ceramic material boat, covering with foam copper, placing the ceramic material boat in a tube furnace, under the condition of argon as shielding gas, with the temperature rise speed of 3 ℃/min, the sintering temperature of 300 ℃, the heat preservation time of 30min, and naturally cooling to obtain Cu 3 P-CuO flexible electrode material. XRD analysis of the sample was carried out, and it can be seen from FIG. 1 that three diffraction peaks at 44.4 °, 51.7 ° and 76.4 ° correspond to diffraction peaks of Cu (JCPDS, no. 04-0836), and diffraction peaks at 36.0 °, 39.0 °, 41.6 °, 45.1 ° and 46.1 ° correspond to diffraction peaks of Cu 3 Diffraction peak of P (JCPDS, no. 65-3628). Since the copper oxide is too amorphous, no diffraction peak is evident. SEM representation is carried out on a sample, and as can be seen from figure 2, the particles of the prepared material are uniformly distributed, the particle size is about 50 to 100nm, and the particles successfully grow on the surface of the copper foil. The materials obtained in the examples were made into batteries as follows: the obtained sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. The lithium metal sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved 6 (1 mmol/L) EC + DEC (1:1 volume ratio) solution as electrolyte was assembled into CR2025 type cell in a glove box protected by argon. Standing for 8h after the cell is assembled, performing cyclic voltammetry on the cell by using a CHI600 electrochemical workstation, wherein the scanning speed is 0.01mV/s, and the prepared Cu is shown in figure 3 3 The first cyclic voltammetry curve of the P-CuO flexible electrode material, the reduction peaks of about 2.28V, 1.9V, 1.46V and 1.2V and the oxidation peaks of 1.9V and 2.4V correspond to the reduction and oxidation processes of CuO, and the reduction peaks of 0.8V and 0.65V and the oxidation peaks of 0.8V, 1.1V, 1.2V and 1.28V correspond to the Cu 3 P reduction and oxidation process shows that Cu is successfully prepared 3 A composite of P and CuO. Performing constant current charge and discharge test with CT2001 battery test system at test voltage of 0.02-3V and current density of 125mA/g, and preparing Cu shown in FIG. 4 3 The first charge and discharge curves (a) and the cycle performance graph (b) of the P-CuO flexible electrode material are shown in the figure, the first charge and discharge specific capacities are respectively 325.1 and 699.2mAh/g, an obvious charge and discharge platform is provided, the charge and discharge capacities after 50 times of cycle are respectively 325.2 and 327.8mAh/g, and the better electrochemical performance is shown。
Example 2
Cutting copper foil into 1 × 4cm pieces, placing in a muffle furnace at 100 deg.C for pre-oxidation treatment for 30min, weighing 0.2g sodium hypophosphite, spreading at the bottom of a ceramic material boat, placing the pre-oxidized copper foil right above the ceramic material boat, covering with copper foam, placing the ceramic material boat in a tube furnace, heating at 5 deg.C/min under the protection of argon gas at 350 deg.C for 15min, and naturally cooling to obtain Cu 3 P-CuO flexible electrode material. The materials obtained in the examples were made into batteries as follows: the prepared sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. The lithium metal sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved 6 The (1 mmol/L) EC + DEC (1:1 volume ratio) solution is used as electrolyte, and assembled into a CR2025 type cell in an argon protective glove box. Standing for 8h after the battery is assembled, and performing constant current charge and discharge test by using a CT2001 battery test system, wherein the test voltage is 0.02-3V, the current density is 125mA/g, and the prepared Cu is shown in figure 5 3 The first charge and discharge curve (a) and the cycle performance graph (b) of the P-CuO flexible electrode material are shown in the figure, the first charge and discharge specific capacities are 336.7 mAh/g and 701.1mAh/g respectively, an obvious charge and discharge platform is provided, the charge and discharge capacities after 50 times of cycle are 223.1 mAh/g and 225.6mAh/g respectively, and the good electrochemical performance is shown.
Example 3
Cutting copper foil into 1 × 4cm pieces, placing in a muffle furnace at 200 deg.C for pre-oxidation treatment for 15min, weighing 0.6g sodium hypophosphite, spreading at the bottom of a ceramic material boat, placing the pre-oxidized copper foil right above the ceramic material boat, covering with copper foam, placing the ceramic material boat in a tube furnace, heating at a temperature of 3 deg.C/min under the protection of argon gas at a sintering temperature of 350 deg.C for 1h, and naturally cooling to obtain Cu 3 P-CuO flexible electrode material. The materials obtained in the examples were made into batteries as follows: the prepared sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. The lithium metal sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved 6 The (1 mmol/L) EC + DEC (1:1 volume ratio) solution is used as electrolyte, and assembled into a CR2025 type cell in an argon protective glove box. Standing for 8h after the battery is assembled, and performing constant current charge and discharge test by using a CT2001 battery test system, wherein the test voltage is 0.02-3V, the current density is 125mA/g, and the prepared Cu is shown in figure 6 3 The first charge and discharge curve (a) and the cycle performance graph (b) of the P-CuO flexible electrode material are shown in the figure, the first charge and discharge specific capacities are respectively 320.3 and 789.1mAh/g, an obvious charge and discharge platform is provided, the charge and discharge capacities after 50 times of cycle are respectively 183.1 and 180.6mAh/g, and better electrochemical performance is shown.
Example 4
Preparing 1g/L citric acid solution, processing 2.5 multiplied by 4cm of foam copper cut into 2.5 cm with the citric acid solution for 10min, drying the foam copper, then placing the foam copper in a muffle furnace for preoxidation treatment at 150 ℃ for 1h, weighing 0.2g of sodium hypophosphite, flatly paving the sodium hypophosphite at the bottom of a ceramic material boat, placing the preoxidized foam copper right above the ceramic material boat, placing the ceramic material boat in a tube furnace, taking argon as protective gas, heating at the speed of 3 ℃/min, sintering at the temperature of 350 ℃, keeping the temperature for 1h, and naturally cooling to obtain Cu 3 P-CuO/C composite electrode material. The sample was subjected to SEM characterization, and as can be seen from FIG. 7, a layer of material with uniform thickness was grown on the surface of the copper foam, and hundreds of nanometers of pores were uniformly distributed on the surface. The materials obtained in the examples were made into batteries as follows: the prepared sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. The lithium metal sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved 6 The (1 mmol/L) EC + DEC (1:1 volume ratio) solution is used as electrolyte, and assembled into a CR2025 type cell in an argon protective glove box. After the cell was assembled, the cell was left standing for 8 hours, and a cyclic voltammetry test was performed on the cell using a CHI600 electrochemical workstation at a scan rate of 0.01mV/s, FIG. 8 is a graph of the Cu prepared 3 The first cyclic voltammetry curve of the P-CuO/C composite electrode material has obvious CuO redox peak and Cu 3 P oxidation reduction peak, indicating successful Cu preparation 3 A composite of P and CuO. Then a CT2001 battery test system is used for constant current charging and discharging test,the test voltage is 0.02 to 3V, the current density is 200mA/g, and the Cu prepared is shown in figure 9 3 The first charge and discharge curve (a) and the cycle performance graph (b) of the P-CuO/C composite electrode material. As shown in the figure, the specific charge capacity and the specific discharge capacity of the battery for the first time are 411.3 and 924.2mAh/g respectively, the battery has obvious charge platforms and discharge platforms, the charge capacity and the discharge capacity after 50 times of circulation are 192.2 and 197.8mAh/g respectively, and the battery has better electrochemical performance.
Example 5
Preparing 2g/L citric acid solution, processing 2.5 multiplied by 4cm of foam copper cut into 2.5 cm with the citric acid solution for 10min, drying the foam copper, then placing the foam copper in a muffle furnace for preoxidation at 100 ℃ for 10min, weighing 0.4g of sodium hypophosphite, flatly paving the sodium hypophosphite at the bottom of a ceramic material boat, placing the preoxidized foam copper right above the ceramic material boat, placing the ceramic material boat in a tube furnace, taking argon as protective gas, heating at the speed of 3 ℃/min, sintering at the temperature of 400 ℃, keeping the temperature for 2h, and naturally cooling to obtain Cu 3 P-CuO/C composite electrode material. The materials obtained in the examples were made into batteries as follows: the prepared sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. A metal lithium sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved in the polymer film 6 The (1 mmol/L) EC + DEC (1:1 volume ratio) solution is used as electrolyte, and assembled into a CR2025 type cell in an argon protective glove box. Standing for 8 hours after the battery is assembled, and performing constant current charge and discharge test by using a CT2001 battery test system, wherein the test voltage is 0.02-3V, the current density is 200mA/g, and the prepared Cu is shown in figure 10 3 The first charge and discharge curve (a) and the cycle performance graph (b) of the P-CuO/C composite electrode material. As shown in the figure, the specific charge capacity and the specific discharge capacity of the battery for the first time are 395.1 and 789.2mAh/g respectively, the battery has obvious charge platforms and discharge platforms, the charge capacity and the discharge capacity after 50 times of circulation are 165.2 mAh/g and 177.8mAh/g respectively, and the battery shows better electrochemical performance.
Example 6
Preparing 5g/L citric acid solution, treating 2.5 × 4cm of foamed copper with citric acid solution for 10min, blow-drying, pre-oxidizing in muffle furnace at 100 deg.C for 15min, weighing 0.4g of sodium hypophosphite, spreading on the bottom of ceramic boat, pre-oxidizingPlacing the ceramic material boat in a tube furnace right above the ceramic material boat, under the condition of argon as protective gas, heating up at 3 ℃/min, sintering at 350 ℃, keeping the temperature for 1h, and naturally cooling to obtain Cu 3 P-CuO/C composite electrode material. The materials obtained in the examples were made into batteries as follows: the prepared sample was cut into 0.5X 0.5cm pieces and vacuum-dried at 120 ℃ for 12 hours. The lithium metal sheet is taken as a counter electrode, a high polymer film (PE-PP-PE) is taken as a diaphragm, and LiPF is dissolved 6 The (1 mmol/L) EC + DEC (1:1 volume ratio) solution is used as electrolyte, and assembled into a CR2025 type cell in an argon protective glove box. Standing for 8 hours after the battery is assembled, and performing constant current charge and discharge test by using a CT2001 battery test system, wherein the test voltage is 0.02-3V, the current density is 200mA/g, and the prepared Cu is shown in figure 11 3 The first charge and discharge curve (a) and the cycle performance graph (b) of the P-CuO/C composite electrode material. As shown in the figure, the first charging and discharging specific capacities are respectively 252.6 and 559.1mAh/g, an obvious charging platform and a discharging platform are provided, the charging and discharging capacities after 50 times of circulation are respectively 319.4 and 328.1mAh/g, and better electrochemical performance is shown.
Claims (8)
1. Cu 3 The preparation method of the P-CuO composite flexible lithium ion battery cathode material is characterized in that the preparation process of the material is as follows:
(1) Placing the copper foil in a muffle furnace at 100-300 ℃ for pre-oxidation treatment for 15min to 1h;
(2) Weighing sodium hypophosphite, flatly paving the sodium hypophosphite at the bottom of the ceramic material boat, and placing the copper foil treated in the step (1) right above the ceramic material boat and covering the copper foil with foamed copper;
(3) Placing the ceramic material boat in the step (2) in a tube furnace, under the condition of inert atmosphere, heating at the speed of 1~5 ℃/min, sintering at the temperature of 250-350 ℃, keeping the temperature for 15min-5h, and naturally cooling to obtain Cu 3 P-CuO flexible electrode material.
2. Cu according to claim 1 3 The preparation method of the P-CuO composite flexible lithium ion battery cathode material is characterized in thatThe copper foil block is placed in a muffle furnace for pre-oxidation treatment, the length of the copper foil is 2-4 cm, and the width of the copper foil is 0.5-2cm; the treatment temperature is 100 deg.C, and the treatment time is 15min.
3. Cu according to claim 1 3 The preparation method of the P-CuO composite flexible lithium ion battery cathode material is characterized in that the mass of sodium hypophosphite at the bottom of a ceramic material boat is 10-50 times of that of copper foil, and the copper foil positioned right above the ceramic is covered by copper foam.
4. Cu according to claim 1 3 The preparation method of the P-CuO composite flexible lithium ion battery cathode material is characterized in that the inert atmosphere comprises argon or nitrogen, the heating speed is 3 ℃/min, the sintering temperature is 300 ℃, and the heat preservation time is 30min.
5. Cu according to any of claims 1 to 4 3 The preparation method of the P-CuO composite flexible lithium ion battery negative electrode material is characterized in that the copper foil in the step (1) is replaced by foam copper, the foam copper is processed by citric acid solution for 10-30min and then dried, and then pre-oxidized in a muffle furnace at 100-300 ℃ for 15min-1h.
6. Cu according to claim 5 3 The preparation method of the P-CuO composite flexible lithium ion battery negative electrode material is characterized in that the concentration range of the citric acid solution is 1-10g/L.
7. Cu according to claim 5 3 The preparation method of the P-CuO composite flexible lithium ion battery cathode material is characterized in that in the step (3), the ceramic material boat is placed in a tube furnace, under the condition of inert atmosphere, the temperature rise speed is 1~5 ℃/min, the sintering temperature is 300-400 ℃, the heat preservation time is 15min to 5h, and the Cu is obtained after natural cooling 3 P-CuO/C flexible electrode material.
8. Cu according to claim 7 3 P-CuO composite flexible lithium ionThe preparation method of the battery cathode material is characterized in that the inert atmosphere is nitrogen or argon, the heating speed is 3 ℃/min, the sintering temperature is 350 ℃, and the heat preservation time is 1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911089596.6A CN110880595B (en) | 2019-11-08 | 2019-11-08 | Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911089596.6A CN110880595B (en) | 2019-11-08 | 2019-11-08 | Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110880595A CN110880595A (en) | 2020-03-13 |
| CN110880595B true CN110880595B (en) | 2022-11-08 |
Family
ID=69729164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911089596.6A Active CN110880595B (en) | 2019-11-08 | 2019-11-08 | Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110880595B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113488656A (en) * | 2020-08-31 | 2021-10-08 | 中南大学 | 3D lithium-philic composite porous metal alloy current collector and preparation method and application thereof |
| CN113388392B (en) * | 2021-05-28 | 2022-07-19 | 杭州电子科技大学 | Preparation method of fluorescent material |
| CN114039033A (en) * | 2021-11-05 | 2022-02-11 | 山东省科学院新材料研究所 | Preparation method of cuprous oxide in-situ coated foamy copper/lithium metal negative electrode material |
| CN114464814A (en) * | 2022-01-26 | 2022-05-10 | 南京航空航天大学 | Modified copper current collector for lithium metal battery cathode and preparation method thereof |
| CN114824295B (en) * | 2022-03-15 | 2023-08-01 | 黑龙江大学 | Method for preparing positive electrode material for assembling hybrid zinc-air battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001127063A (en) * | 1999-10-25 | 2001-05-11 | United Microelectronics Corp | Method of increasing adhesion between copper and silicon nitride |
| CN102339982A (en) * | 2011-10-18 | 2012-02-01 | 浙江大学 | Anode of lithium ion battery, preparation method and battery using anode |
| JP2015118772A (en) * | 2013-12-17 | 2015-06-25 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Lithium ion secondary battery, and method of manufacturing the same |
| CN104868098A (en) * | 2015-05-15 | 2015-08-26 | 三峡大学 | Negative electrode of carbon-composite Cu3P-Cu lithium-ion battery and preparation method of negative electrode |
| CN105576239A (en) * | 2016-01-22 | 2016-05-11 | 三峡大学 | Preparation process and application of Cu3P/C-Cu negative electrode material without binding agent |
| CN105845932A (en) * | 2016-05-05 | 2016-08-10 | 苏州大学 | Preparation method of Cu3P nanowire negative electrode, Cu3P nanowire negative electrode prepared by method and application of Cu3P nanowire negative electrode |
| CN108538623A (en) * | 2018-05-15 | 2018-09-14 | 兰州理工大学 | A kind of preparation method of manganese bioxide/carbon nano tube combination electrode material |
| CN109482208A (en) * | 2018-10-31 | 2019-03-19 | 北京科技大学 | The method that nickel foam in-situ reducing copper ion and subsequent heat treatment prepare catalyst |
-
2019
- 2019-11-08 CN CN201911089596.6A patent/CN110880595B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001127063A (en) * | 1999-10-25 | 2001-05-11 | United Microelectronics Corp | Method of increasing adhesion between copper and silicon nitride |
| CN102339982A (en) * | 2011-10-18 | 2012-02-01 | 浙江大学 | Anode of lithium ion battery, preparation method and battery using anode |
| JP2015118772A (en) * | 2013-12-17 | 2015-06-25 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Lithium ion secondary battery, and method of manufacturing the same |
| CN104868098A (en) * | 2015-05-15 | 2015-08-26 | 三峡大学 | Negative electrode of carbon-composite Cu3P-Cu lithium-ion battery and preparation method of negative electrode |
| CN105576239A (en) * | 2016-01-22 | 2016-05-11 | 三峡大学 | Preparation process and application of Cu3P/C-Cu negative electrode material without binding agent |
| CN105845932A (en) * | 2016-05-05 | 2016-08-10 | 苏州大学 | Preparation method of Cu3P nanowire negative electrode, Cu3P nanowire negative electrode prepared by method and application of Cu3P nanowire negative electrode |
| CN108538623A (en) * | 2018-05-15 | 2018-09-14 | 兰州理工大学 | A kind of preparation method of manganese bioxide/carbon nano tube combination electrode material |
| CN109482208A (en) * | 2018-10-31 | 2019-03-19 | 北京科技大学 | The method that nickel foam in-situ reducing copper ion and subsequent heat treatment prepare catalyst |
Non-Patent Citations (2)
| Title |
|---|
| Crystalline copper phosphide nanosheets as an efficient janus catalyst for overall water splitting;Ali Han等;《ACS APPLED MATERIALS & INTERFACES》;20161223;第9卷;第2240-2248页 * |
| Cu3P/CuO Core-Shell Nanorod Arrays as High-Performance Electrocatalysts for Water Oxidation;Jian Du等;《 CHEMELECTROCHEM》;20180801;第5卷(第15期);第2064-2068页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110880595A (en) | 2020-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110880595B (en) | Cu 3 Preparation method of P-CuO composite flexible lithium ion battery cathode material | |
| CN102306781A (en) | Doped graphene electrode material, macro preparation method and application of doped graphene electrode material | |
| CN105932234A (en) | Doped porous carbon spheres used for negative electrode material of sodium ion battery and preparation method for doped porous carbon spheres | |
| CN103219493B (en) | A kind of sulphur conductive oxide composite material and the application as lithium sulfur battery anode material thereof | |
| CN112886004B (en) | Cathode material of water-based zinc ion battery and matched electrolyte | |
| CN113054183A (en) | Preparation method of CoNi bimetal organic framework derived carbon-sulfur composite material | |
| CN106099095A (en) | The preparation method of fluorine nitrogen co-doped carbon cladding lithium titanate nanometer sheet | |
| CN109286002B (en) | Multi-bark biomass carbon-loaded red phosphorus sodium ion battery negative electrode material and preparation method thereof | |
| CN108492996A (en) | A kind of preparation method of fluorine, nitrogen co-doped class graphene film layer material | |
| CN102299334A (en) | Carbon coated LiFePO4 porous anode and preparation method thereof | |
| CN110828799A (en) | Water-system zinc ion battery MnOx@ C cathode material and preparation method thereof | |
| CN110577204A (en) | preparation of N/O co-doped hard carbon material and application of N/O co-doped hard carbon material in potassium ion battery | |
| CN108766786A (en) | A kind of preparation method of high specific energy Nano carbon energy storage material | |
| CN1571196A (en) | A modified bamboocarbon lithium-ion battery cathode material and method for making same | |
| CN110828819B (en) | Pyrrhotite type iron sulfide negative electrode material for potassium ion battery and preparation method thereof | |
| CN104466129A (en) | Method for preparing lithium ion battery composite positive electrode material (lithium iron phosphate/tetraphenyl porphyrin magnesium) | |
| CN115285969A (en) | Biomass-derived nitrogen-doped hard carbon material and preparation method and application thereof | |
| CN109378470B (en) | Preparation method of vanadium-doped tungsten disulfide negative electrode material | |
| CN115172639A (en) | Self-supporting potassium ion pre-embedded manganese-based positive electrode and preparation method and application thereof | |
| CN110518194B (en) | Method for preparing core-shell silicon/carbon composite material by in-situ carbon coating and application thereof | |
| CN111969190A (en) | Method for improving sodium storage performance through nitrogen doping and defect-rich nanoshell | |
| CN108963214B (en) | Preparation method of lithium ion battery negative electrode material | |
| CN112803018A (en) | Silicon-doped graphene composite material and preparation method and application thereof | |
| CN112310371A (en) | Iron oxyhydroxide/biomass charcoal composite material and preparation method thereof | |
| CN109786723A (en) | A kind of preparation method of the carbon composite of three-dimensional porous low metal doping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210824 Address after: 405400 standard delivery room 7, Luyu advanced manufacturing industrial park, Zhaojia street, Kaizhou District, Chongqing Applicant after: Chongqing jiadingsheng Technology Co.,Ltd. Address before: 405400 Chongqing Kai Zhou Industrial Park, Zhao Jia light industrial food industry park No. 5 standard workshop. Applicant before: CHONGQING JIABAOCHENG ENERGY TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |