CN114195522A - Method for rapidly preparing vanadium nitride ceramic powder by using urea nitridation, product and application thereof - Google Patents
Method for rapidly preparing vanadium nitride ceramic powder by using urea nitridation, product and application thereof Download PDFInfo
- Publication number
- CN114195522A CN114195522A CN202111449728.9A CN202111449728A CN114195522A CN 114195522 A CN114195522 A CN 114195522A CN 202111449728 A CN202111449728 A CN 202111449728A CN 114195522 A CN114195522 A CN 114195522A
- Authority
- CN
- China
- Prior art keywords
- ceramic powder
- nitride ceramic
- vanadium nitride
- urea
- vanadium
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/58007—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on refractory metal nitrides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- H01M4/36—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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3839—Refractory metal carbides
-
- 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)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a method for rapidly preparing vanadium nitride ceramic powder by using urea nitridation, a product and application thereof. The mass ratio of the nitrogen source to the vanadium source is greater than or equal to 0.6. The temperature of the low-temperature annealing treatment is 600-1000 ℃, and the time is more than 1 hour. The method has the characteristics of easy operation, simple equipment, high efficiency, low cost and the like, and the prepared vanadium nitride ceramic powder has small particle size, good dispersity and high crystallinity and can be applied to lithium ion battery electrode materials.
Description
Technical Field
The invention relates to the technical field of vanadium nitride ceramic materials, in particular to a method for quickly preparing vanadium nitride ceramic powder by using urea nitriding, and a product and application thereof.
Background
The advantages of vanadium nitride ceramics such as high conductivity, excellent mechanical property, outstanding oxidation resistance and corrosion resistance become the research hotspots of transition metal nitrides. In addition, vanadium nitride has a wide application prospect in lithium ion batteries due to high theoretical capacity and strong redox capability of vanadium ions. The existing preparation method of vanadium nitride ceramics mainly comprises a high-temperature nitrogen reduction method and an ammonia reduction method, and the methods have the defects of high reaction temperature, dangerous operation, large energy consumption and the like. In addition, the vanadium nitride obtained by the method has poor average dispersibility, which influences the exertion of the electrochemical performance of the vanadium nitride. Therefore, the search of new vanadium nitride ceramic preparation technology is of no doubtful significance.
Disclosure of Invention
In view of the above disadvantages, the present invention provides a method for rapidly preparing vanadium nitride ceramic powder by urea nitridation, and a product and an application thereof.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a method for rapidly preparing vanadium nitride ceramic powder by using urea nitriding adopts vanadium carbide as a vanadium source and urea as a nitrogen source, and prepares the vanadium nitride ceramic powder with higher purity and better dispersibility through low-temperature annealing treatment. The mass ratio of the nitrogen source to the vanadium source is greater than or equal to 0.6. The low-temperature annealing treatment is carried out at the temperature of 600-1000 ℃ for more than 1 hour, and argon is introduced for protection in the nitridation process of vanadium carbide. Namely, the low-temperature annealing treatment is carried out in an argon atmosphere. The integral preparation method has the characteristics of simple operation, high efficiency, low cost and the like, and the prepared vanadium nitride ceramic powder has the characteristics of small particle size, excellent dispersibility and the like, and can be applied as an electrode material of a lithium ion battery. And taking out the vanadium nitride ceramic powder, and ultrasonically cleaning the vanadium nitride ceramic powder by using water to remove residual water-soluble impurities.
Preferably, the vanadium carbide is VC or V2C or V2A mixture of one or more of C MXene. Vanadium carbide phase by thermodynamic calculationIs easier than the nitridation process of the simple substance vanadium, therefore, V is adopted2And C (VC) is a vanadium source, and urea is a nitrogen source for low-temperature annealing treatment to prepare Vanadium Nitride (VN).
The vanadium nitride ceramic powder is prepared by the method for rapidly preparing the vanadium nitride ceramic powder by using urea nitriding.
The vanadium oxide coated carbide composite material is applied to an electrode material of a lithium ion battery.
The invention has the beneficial effects that: the vanadium nitride ceramic powder with high purity and excellent dispersibility is prepared by reasonably using vanadium carbide as a vanadium source and urea as a nitrogen source through low-temperature annealing treatment, the whole preparation method has the characteristics of easiness in operation, simple equipment, high efficiency, low cost and the like, and the prepared vanadium nitride ceramic powder has small particle size, good dispersibility and high crystallinity and can be applied to lithium ion battery electrode materials.
The invention is further illustrated below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
FIG. 2 is an XRD spectrum of the vanadium nitride ceramic powder obtained in example 1.
FIG. 3 is an SEM image of the vanadium nitride ceramic powder prepared in example 1.
Detailed Description
Example 1: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, in which urea and V are mixed at a mass ratio of 10:12And C MXene powder is manually and uniformly mixed and then poured into a corundum crucible, the corundum crucible is covered and placed into a stainless steel high-temperature tubular reaction furnace, the temperature is raised to 600 ℃ in a closed environment at the speed of 5 ℃/min under the protection of high-purity argon, and the temperature is kept for 4 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder. The XRD and SEM analysis results are shown in fig. 2 and 3, respectively. In fig. 2, the abscissa 2 θ represents the diffraction angle (degree) and the ordinate Intensity represents the Intensity.
Example 2: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, in which urea and V are mixed at a mass ratio of 0.8:12And C, manually mixing the powder C uniformly, pouring the mixture into a corundum crucible, covering the crucible, putting the corundum crucible into a stainless steel high-temperature tubular reaction furnace, heating to 800 ℃ at the speed of 5 ℃/min in a closed environment under the protection of high-purity argon, and preserving heat for 3 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 3: the embodiment provides a method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, which comprises the steps of manually and uniformly mixing urea and VC powder in a mass ratio of 1:1, pouring the mixture into a corundum crucible, covering the crucible, putting the crucible into a stainless steel high-temperature tubular reaction furnace, heating to 1000 ℃ at a speed of 5 ℃/min in a closed environment under the protection of high-purity argon, and preserving heat for 1 h. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 4: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, including mixing urea and 50 wt.% V in a mass ratio of 0.6:12C. And (3) manually mixing 50 wt.% of VC mixture powder uniformly, pouring the mixture into a corundum crucible, covering the crucible, putting the corundum crucible into a stainless steel high-temperature tubular reaction furnace, heating to 650 ℃ at the speed of 5 ℃/min in a closed environment under the protection of high-purity argon, and preserving heat for 4 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 5: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, including mixing urea and 90 wt.% V in a mass ratio of 2:12C. Mixing 10 wt.% VC mixture powder by hand, pouring into corundum crucible, covering the crucible, and putting into stainless steel high-temperature tubular reactorThe temperature is increased to 900 ℃ in a closed environment at the speed of 5 ℃/min under the protection of high-purity argon, and the temperature is kept for 2 h. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 6: this embodiment provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, in which urea and 60 wt.% VC and 40 wt.% V are mixed in a mass ratio of 3:12And (3) manually and uniformly mixing the C MXene mixture powder, pouring the mixture powder into a corundum crucible, covering the crucible, putting the corundum crucible into a stainless steel high-temperature tubular reaction furnace, heating to 650 ℃ at the speed of 6 ℃/min in a closed environment under the protection of high-purity argon, and preserving the heat for 5 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 7: the embodiment provides a method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, which comprises the steps of manually and uniformly mixing urea and VC powder in a mass ratio of 10:1, pouring the mixture into a corundum crucible, covering the crucible, putting the crucible into a stainless steel high-temperature tubular reaction furnace, heating to 600 ℃ at a speed of 5 ℃/min in a closed environment under the protection of high-purity argon, and preserving heat for 4 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 8: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, in which urea and 30 wt.% V are mixed in a mass ratio of 10:12C、30wt.％VC、40wt.％V2And (3) manually and uniformly mixing the C MXene mixture powder, pouring the mixture powder into a corundum crucible, covering the crucible, putting the corundum crucible into a stainless steel high-temperature tubular reaction furnace, heating to 850 ℃ at the speed of 5 ℃/min in a closed environment under the protection of high-purity argon, and keeping the temperature for 3 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then placing the product inAnd drying the mixture in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 9: this example provides a method for rapidly preparing vanadium nitride ceramic powder by nitriding urea, in which urea and V are mixed at a mass ratio of 3:12And C MXene powder is manually and uniformly mixed and then poured into a corundum crucible, the corundum crucible is covered and placed into a stainless steel high-temperature tubular reaction furnace, the temperature is raised to 600 ℃ in a closed environment at the speed of 5 ℃/min under the protection of high-purity argon, and the temperature is kept for 6 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
Example 10: the embodiment provides a method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, which comprises the steps of manually and uniformly mixing urea and VC powder in a mass ratio of 2:1, pouring the mixture into a corundum crucible, covering the crucible, putting the crucible into a stainless steel high-temperature tubular reaction furnace, heating to 900 ℃ at a speed of 6 ℃/min in a closed environment under the protection of high-purity argon, and preserving heat for 4 hours. And after the sample is cooled to room temperature along with the furnace, taking out the sample, and ultrasonically cleaning the sample by using deionized water to remove water-soluble impurities. Then the product is dried in a vacuum drying oven at 120 ℃ for 12 hours to obtain the vanadium nitride ceramic powder.
The above examples are only preferred embodiments of the present invention, and the present invention is not limited to all embodiments, and any technical solution using one of the above examples or equivalent changes made according to the above examples is within the scope of the present invention. The vanadium nitride ceramic powder with high purity and excellent dispersity is prepared by reasonably using vanadium carbide as a vanadium source and urea as a nitrogen source through low-temperature annealing treatment, the whole preparation method has the characteristics of easiness in operation, simple equipment, high efficiency, low cost and the like, and the prepared vanadium nitride ceramic powder has the advantages of small particle size, good dispersity, high crystallinity and the like.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Other powders and methods of making the same, which are obtained by the same or similar steps as those described in the above embodiments of the present invention, are within the scope of the present invention.
Claims (9)
1. A method for rapidly preparing vanadium nitride ceramic powder by using urea nitriding is characterized in that vanadium carbide is used as a vanadium source, urea is used as a nitrogen source, and the vanadium nitride ceramic powder is prepared by low-temperature annealing treatment.
2. The method for rapidly preparing vanadium nitride ceramic powder by using urea nitriding according to claim 1, wherein the temperature of the low-temperature annealing treatment is 600-1000 ℃.
3. The method for rapidly preparing the vanadium nitride ceramic powder by utilizing urea nitriding according to claim 1 or 2, wherein the time of the low-temperature annealing treatment is more than 1 hour.
4. The method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitriding according to claim 1, wherein the vanadium carbide is VC or V2C or V2A mixture of one or more of C MXene.
5. The method for rapidly preparing the vanadium nitride ceramic powder by utilizing urea nitriding according to claim 2, wherein the low-temperature annealing treatment is performed in an argon atmosphere.
6. The method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitriding according to claim 1, wherein the mass ratio of the nitrogen source to the vanadium source is greater than or equal to 0.6.
7. The method for rapidly preparing the vanadium nitride ceramic powder by utilizing urea nitriding according to claim 1, wherein the vanadium nitride ceramic powder is taken out and ultrasonically cleaned by water to remove residual water-soluble impurities.
8. The vanadium nitride ceramic powder is characterized by being prepared by the method for rapidly preparing the vanadium nitride ceramic powder by utilizing urea nitriding according to any one of claims 1 to 7.
9. The vanadium oxide coated carbide composite material as set forth in any one of claims 1 to 7 or claim 8 applied to an electrode material for a lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449728.9A CN114195522B (en) | 2021-11-30 | 2021-11-30 | Method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, product and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111449728.9A CN114195522B (en) | 2021-11-30 | 2021-11-30 | Method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, product and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114195522A true CN114195522A (en) | 2022-03-18 |
| CN114195522B CN114195522B (en) | 2023-05-26 |
Family
ID=80650241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111449728.9A Active CN114195522B (en) | 2021-11-30 | 2021-11-30 | Method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, product and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114195522B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1318467A (en) * | 1970-09-08 | 1973-05-31 | Hollandse Metallurg Ind Billit | Methods of preparation of a material containing vanadium carbonitride and or vanadium nitride |
| US5459114A (en) * | 1992-11-26 | 1995-10-17 | Tonen Corporation | Method for producing ceramic products |
| CN101717076A (en) * | 2009-11-27 | 2010-06-02 | 华南师范大学 | Method for preparing vanadium nitride |
| CN104404333A (en) * | 2014-11-11 | 2015-03-11 | 应忠芳 | Raw material composition for preparing vanadium nitride with ultrahigh nitrogen content and method utilizing same to prepare ultrahigh vanadium nitride |
| CN107381515A (en) * | 2017-08-08 | 2017-11-24 | 陕西科技大学 | A kind of preparation method and product of vanadium nitride elctro-catalyst |
| CN107673317A (en) * | 2017-10-27 | 2018-02-09 | 西安建筑科技大学 | A kind of method for preparing vanadium nitride |
| CN108018474A (en) * | 2017-11-09 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of method that vanadium nitride is prepared with ammonium metavanadate serialization |
-
2021
- 2021-11-30 CN CN202111449728.9A patent/CN114195522B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1318467A (en) * | 1970-09-08 | 1973-05-31 | Hollandse Metallurg Ind Billit | Methods of preparation of a material containing vanadium carbonitride and or vanadium nitride |
| US5459114A (en) * | 1992-11-26 | 1995-10-17 | Tonen Corporation | Method for producing ceramic products |
| CN101717076A (en) * | 2009-11-27 | 2010-06-02 | 华南师范大学 | Method for preparing vanadium nitride |
| CN104404333A (en) * | 2014-11-11 | 2015-03-11 | 应忠芳 | Raw material composition for preparing vanadium nitride with ultrahigh nitrogen content and method utilizing same to prepare ultrahigh vanadium nitride |
| CN107381515A (en) * | 2017-08-08 | 2017-11-24 | 陕西科技大学 | A kind of preparation method and product of vanadium nitride elctro-catalyst |
| CN107673317A (en) * | 2017-10-27 | 2018-02-09 | 西安建筑科技大学 | A kind of method for preparing vanadium nitride |
| CN108018474A (en) * | 2017-11-09 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of method that vanadium nitride is prepared with ammonium metavanadate serialization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114195522B (en) | 2023-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108336316B (en) | MOFs surface modification-based lithium-rich cathode material and preparation method thereof | |
| CN111763087A (en) | Series of cubic fluorite type high-entropy cerium oxide nano-powder and preparation method thereof | |
| CN108328635B (en) | Method for preparing alumina aerogel | |
| CN107275587B (en) | A kind of lithium ion silicon-carbon composite cathode material and preparation method thereof | |
| CN110818430B (en) | Uniform high-entropy oxide ceramic submicron spherical powder and preparation method thereof | |
| CN108793987B (en) | Lithium ion conductive oxide solid electrolyte and preparation method thereof | |
| CN110078476B (en) | Al-doped BiCuSeO-based thermoelectric material and preparation method thereof | |
| CN111793824B (en) | Surface-modified high-nickel cathode material and preparation method and application thereof | |
| CN108987733B (en) | Preparation method of active porous carbon @ FeS of lithium ion battery cathode material | |
| CN112397702A (en) | FeSix embedded porous silicon composite material and preparation method and application thereof | |
| CN110336003A (en) | A kind of porous silicon-base composite material and preparation method and application | |
| CN107316974B (en) | Preparation method of nano-silver composite lithium iron phosphate cathode material | |
| CN114195522B (en) | Method for rapidly preparing vanadium nitride ceramic powder by utilizing urea nitridation, product and application thereof | |
| CN110112371A (en) | A kind of method of surface coating modification Spinel positive electrode | |
| CN113548898B (en) | (Mo) 0.2 W 0.2 V 0.2 Cr 0.2 Ni 0.2 ) B high-entropy ceramic powder and preparation method thereof | |
| CN110372039A (en) | A kind of method that high-valence state transition metal ions Permutations combination strategy prepares cation disorder rock salt structure positive electrode | |
| JP4078414B2 (en) | Lanthanum sulfide sintered body and manufacturing method thereof | |
| CN115010502B (en) | Method for rapidly preparing nano vanadium nitride coated carbon fiber composite ceramic powder, product and application thereof | |
| CN104961162B (en) | A kind of method that single pure phase bismuth ferric material is prepared based on Lithium ions compensation | |
| Buzanov et al. | Hydride lithiation of spinels LiMn 2 O 4 | |
| Xu et al. | Preparation of nanostructured Li1. 4Al0. 4Ti1. 6 (PO4) 3 glass-ceramics by a citrate process | |
| CN110963529B (en) | Pure-phase niobium lower-valence oxide nano powder and preparation method and application thereof | |
| CN110112281B (en) | Al-doped Cu-vacancy BiCuSeO-based thermoelectric material and preparation method thereof | |
| CN104477979A (en) | Method for preparing LiTi204 powder material | |
| CN111261935A (en) | Sodium ion conductor solid electrolyte material, preparation method and application |
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 |