CN112079399A - Preparation method of low-cost high-performance nickel-cobalt lithium aluminate composite cathode material - Google Patents
Preparation method of low-cost high-performance nickel-cobalt lithium aluminate composite cathode material Download PDFInfo
- Publication number
- CN112079399A CN112079399A CN202010926522.XA CN202010926522A CN112079399A CN 112079399 A CN112079399 A CN 112079399A CN 202010926522 A CN202010926522 A CN 202010926522A CN 112079399 A CN112079399 A CN 112079399A
- Authority
- CN
- China
- Prior art keywords
- ethoxide
- nickel
- pure water
- cobalt
- putting
- 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
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
- C01G41/02—Oxides; Hydroxides
-
- 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
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive 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 discloses a preparation method of a low-cost high-performance nickel-cobalt lithium aluminate composite positive electrode material, wherein the molar ratio of lithium to nickel to cobalt to aluminum to oxygen in the nickel-cobalt lithium aluminate composite positive electrode material is 1.03: X: Y: 1-X-Y: 2, (wherein X is more than or equal to 0.8 and less than or equal to 0.9, and Y is more than or equal to 0.05 and less than or equal to 0.15).
Description
Technical Field
The invention relates to the fields of 3C, power and energy storage materials and electrochemistry, in particular to a preparation method of a low-cost high-performance nickel-cobalt lithium aluminate composite cathode material.
Background
Lithium ion batteries are widely used due to their advantages of high energy density, high voltage, long cycle life, etc., and their commercialization requires further improvement in energy density, cycle performance, rate capability, thermal stability and storage performance, and reduction in internal resistance and self-discharge; meanwhile, in order to reduce the cost of raw materials, a low-cobalt and cobalt-free technical route is also a necessary way.
Under the background, the nickel-cobalt-manganese ternary cathode material needs to be modified and optimized in material performance through different modification methods, such as element doping, element coating and the like, so that the performances of the lithium ion battery ternary cathode material in all aspects are improved.
Disclosure of Invention
Based on the method, the invention provides a preparation method of the nickel-cobalt lithium aluminate composite cathode material with low cost and high performance.
The technical scheme of the invention is as follows:
a preparation method of a low-cost high-performance nickel-cobalt lithium aluminate composite cathode material is characterized by comprising the following steps: the molar ratio of lithium to nickel to cobalt to aluminum to oxygen in the nickel-cobalt lithium aluminate composite anode material is 1.03: X: Y to (1-X-Y) to 2, (wherein X is more than or equal to 0.8 and less than or equal to 0.9, and Y is more than or equal to 0.05 and less than or equal to 0.15).
The preparation method comprises the following steps:
A. mixing of raw materials
Putting zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide into pure water, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour to obtain a zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide aqueous solution.
Secondly, putting lithium hydroxide and nickel cobalt aluminum hydroxide into zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide water solution, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour; the adding amount of lithium hydroxide and nickel cobalt aluminum hydroxide is added according to the molar ratio of 1.03: 1, the adding amount of zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide is added according to 0.3-0.6% of the mass of a finished product, the using amount of pure water is added according to 50% of the total mass of the mixed solution, and the resistivity of the pure water is 10-18M omega cm.
B. Rake drying
Drying the material obtained in step A by means of a rake to remove water.
C. Sintered synthesis
And D, putting the material prepared in the step B into a kiln in an oxygen atmosphere for sintering in a gradient manner for 5-6 hours at the temperature of 450-500 ℃ and for 5-6 hours at the temperature of 750-800 ℃.
D. Mechanical crushing
C, coarsely crushing the sintered material in the step C by means of a jaw crushing double-roll machine, wherein the particle size of the coarsely crushed material is 1-2 mm; and (3) finely crushing the coarsely crushed materials by a mechanical crusher, wherein the granularity of the finely crushed materials is 10-12 um.
E. Magnetic removal by sieving
D, removing foreign matters, large particles and other substances from the crushed material in the step D through a 325-mesh vibrating screen; and removing magnetic substances in the sieved material through a 9000GS iron remover.
F. Washing to remove impurities
Putting the material treated in the step E into pure water, mixing and stirring for 0.5-1 hour, wherein the mass ratio of the material to the pure water is 1: 1, and the resistivity of the pure water is 10-18M omega cm; the mixed and stirred material is subjected to a centrifuge or a filter press to remove water containing alkaline and ionic impurities.
G. Intermediate temperature drying
And F, putting the material washed and decontaminated in the step F into a vacuum baking oven, and baking the material in a vacuum environment of-0.08 to-0.1 MPa at 350 to 400 ℃.
H. Mechanical depolymerization
And D, depolymerizing the material treated in the step G by using a closed negative pressure type thermal cycle mechanical pulverizer to obtain the nickel-cobalt lithium aluminate composite cathode material.
The invention has the following beneficial effects:
1. by selecting lithium hydroxide to replace lithium carbonate as a lithium source, the lithium hydroxide is completely decomposed in the sintering process, the alkalinity of the ternary material is weakened, the sensitivity of the ternary material to humidity is reduced, and the first discharge capacity is relatively high; meanwhile, the particle size distribution of the ternary cathode material prepared by taking lithium hydroxide as a lithium source is relatively narrow, the difference of Li and transition metal contents in large particles and small particles is effectively reduced, the risk of damaging the material structure due to excessive lithium removal of the small particles caused by polarization factors in the charging process is reduced, and the cycle performance of the material is improved.
2. Zirconium oxide formed by sintering zirconium ethoxide can effectively reduce direct contact of active substances and electrolyte and prevent hydrofluoric acid generated by electrolyte decomposition from corroding electrode active materials by selecting zirconium ethoxide, tungsten ethoxide and magnesium ethoxide as coating materials, so that the cycle performance of the nickel-cobalt lithium aluminate anode material is improved; tungsten oxide formed by sintering tungsten ethoxide can effectively improve the discharge specific capacity and the rate capability of the nickel-cobalt lithium aluminate anode material; the magnesium oxide formed by sintering the magnesium ethoxide can effectively reduce the polarization and internal resistance of active substances in the charging and discharging process and slow down the self-discharge speed, and simultaneously improve the storage performance of the lithium ion battery and prolong the cycle life of the lithium ion battery.
3. The nickel cobalt lithium aluminate precursor is subjected to liquid phase dispersion pre-coating by selecting the nano metal, so that the nano metal can be more effectively and uniformly dispersed on the particle surface of the precursor, a more stable metal oxide coating shell structure is formed after sintering synthesis and moderate temperature drying, the damage of the metal oxide shell structure is reduced in the subsequent mechanical crushing depolymerization process, and the integrity of the shell structure is ensured.
4. The washing process can effectively remove the lithium salt and impurities remained in the medium-low temperature step sintering synthesis process of the material, and is more beneficial to the application of the material in the lithium ion battery and the improvement of the electrical property.
5. The depolymerization is carried out by selecting closed negative pressure type thermal cycle mechanical pulverization, so that the moisture absorption of the material in the depolymerization process can be more effectively prevented, and the processing of the material in the preparation process of the lithium ion battery is more facilitated.
Drawings
Fig. 1 is a button cell discharge graph.
Fig. 2 is a graph of a 3C charge-discharge cycle.
Detailed Description
A preparation method of a low-cost high-performance nickel-cobalt lithium aluminate composite cathode material is characterized by comprising the following steps: the molar ratio of lithium to nickel to cobalt to aluminum to oxygen in the nickel-cobalt lithium aluminate composite anode material is 1.03: X: Y to (1-X-Y) to 2, (wherein X is more than or equal to 0.8 and less than or equal to 0.9, and Y is more than or equal to 0.05 and less than or equal to 0.15).
Example 1:
the preparation method comprises the following steps:
A. mixing of raw materials
Firstly, zirconium (C) ethoxide2H5O)4Zr and tungsten ethoxide (C)2H5O)5And (3) putting W into pure water, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour to obtain the zirconium ethoxide and tungsten ethoxide aqueous solution.
② lithium hydroxide (LiOHH)2O), nickel cobalt aluminum hydroxide [ Ni ]0.8Co0.15Al0.05(OH)2]Adding zirconium ethoxide and tungsten ethoxide aqueous solution, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour; the adding amount of lithium hydroxide and nickel cobalt aluminum hydroxide is added according to the molar ratio of 1.03: 1, the adding amount of zirconium ethoxide is 0.2% of the mass of a finished product, the adding amount of tungsten ethoxide is 0.2% of the mass of the finished product, the using amount of pure water is 50% of the total mass of the mixed solution, and the resistivity of the pure water is 10-18M omega cm.
B. Rake drying
Drying the material obtained in step A by means of a rake to remove water.
C. Sintered synthesis
And D, putting the material prepared in the step B into a kiln in an oxygen atmosphere for sintering in a gradient manner for 5-6 hours at the temperature of 450-500 ℃ and for 5-6 hours at the temperature of 750-800 ℃.
D. Mechanical crushing
C, coarsely crushing the sintered material in the step C by means of a jaw crushing double-roll machine, wherein the particle size of the coarsely crushed material is 1-2 mm; and (3) finely crushing the coarsely crushed materials by a mechanical crusher, wherein the granularity of the finely crushed materials is 10-12 um.
E. Magnetic removal by sieving
D, removing foreign matters, large particles and other substances from the crushed material in the step D through a 325-mesh vibrating screen; and removing magnetic substances in the sieved material through a 9000GS iron remover.
F. Washing to remove impurities
E, putting the material treated in the step E into pure water, mixing and stirring for 0.5-1 hour, wherein the mass ratio of the material to the pure water is 1: 1, and the resistivity of the pure water is 10-18M omega cm; the mixed and stirred material is subjected to a centrifuge (or a filter press) to remove water containing alkaline and ionic impurities.
G. Intermediate temperature drying
And F, putting the material washed and decontaminated in the step F into a vacuum baking oven, and baking the material in a vacuum environment of-0.08 to-0.1 MPa at 350 to 400 ℃.
H. Mechanical depolymerization
And D, depolymerizing the material treated in the step G by using a closed negative pressure type thermal cycle mechanical pulverizer to obtain the nickel-cobalt lithium aluminate composite cathode material.
Example 2:
the preparation method comprises the following steps:
A. mixing of raw materials
Firstly, zirconium (C) ethoxide2H5O)4Zr, tungsten ethoxide (C)2H5O)5W and magnesium ethoxide (C)2H5O)2And adding Mg into pure water, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour to obtain the aqueous solution of zirconium ethoxide, tungsten ethoxide and magnesium ethoxide.
② lithium hydroxide (LiOHH)2O), nickel cobalt aluminum hydroxide [ Ni ]0.85Co0.1Al0.05(OH)2]Adding zirconium ethoxide, tungsten ethoxide and magnesium ethoxide aqueous solution, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour; adding lithium hydroxide and nickel cobalt aluminum hydroxide according to a molar ratio of 1.03: 1, adding zirconium ethoxide according to 0.15% of the finished product, adding tungsten ethoxide according to 0.15% of the finished product, and adding magnesium ethoxide according to the finished product0.15% of (A), the amount of pure water used being 50% by mass of the total mixed solution, the resistivity of the pure water being 10 to 18M Ω & cm.
B. Rake drying
Drying the material obtained in step A by means of a rake to remove water.
C. Sintered synthesis
And D, putting the material prepared in the step B into a kiln in an oxygen atmosphere for sintering in a gradient manner for 5-6 hours at the temperature of 450-500 ℃ and for 5-6 hours at the temperature of 750-800 ℃.
D. Mechanical crushing
C, coarsely crushing the sintered material in the step C by means of a jaw crushing double-roll machine, wherein the particle size of the coarsely crushed material is 1-2 mm; and (3) finely crushing the coarsely crushed materials by a mechanical crusher, wherein the granularity of the finely crushed materials is 10-12 um.
E. Magnetic removal by sieving
D, removing foreign matters, large particles and other substances from the crushed material in the step D through a 325-mesh vibrating screen; and removing magnetic substances in the sieved material through a 9000GS iron remover.
F. Washing to remove impurities
Putting the material treated in the step E into pure water, mixing and stirring for 0.5-1 hour, wherein the mass ratio of the material to the pure water is 1: 1, and the resistivity of the pure water is 10-18M omega cm; the mixed and stirred material is subjected to a centrifuge (or a filter press) to remove water containing alkaline and ionic impurities.
G. Intermediate temperature drying
And F, putting the material washed and decontaminated in the step F into a vacuum baking oven, and baking the material in a vacuum environment of-0.08 to-0.1 MPa at 350 to 400 ℃.
H. Mechanical depolymerization
And D, depolymerizing the material treated in the step G by using a closed negative pressure type thermal cycle mechanical pulverizer to obtain the nickel-cobalt lithium aluminate composite cathode material.
The performance of the button cell made of the nickel cobalt lithium aluminate composite cathode material obtained in example 1 is shown in fig. 1-2.
Claims (2)
1. A preparation method of a low-cost high-performance nickel-cobalt lithium aluminate composite cathode material is characterized by comprising the following steps: lithium in the nickel-cobalt lithium aluminate composite cathode material: the molar ratio of nickel, cobalt, aluminum and oxygen is 1.03: X: Y: 1-X-Y: 2, wherein X is more than or equal to 0.8 and less than or equal to 0.9, and Y is more than or equal to 0.05 and less than or equal to 0.15; the preparation method comprises the following steps:
A. mixing of raw materials
Putting zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide into pure water, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour to obtain a zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide aqueous solution;
secondly, putting lithium hydroxide and nickel cobalt aluminum hydroxide into zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide water solution, mixing and stirring, and fully and uniformly dispersing for 0.5-1 hour; adding lithium hydroxide and nickel cobalt aluminum hydroxide according to a molar ratio of 1.03: 1, adding zirconium ethoxide or/and tungsten ethoxide or/and magnesium ethoxide according to 0.3-0.6% of the mass of a finished product, dosing pure water according to 50% of the total mass of the mixed solution, wherein the resistivity of the pure water is 10-18M omega cm;
B. rake drying
Drying the substance obtained in the step A by means of rake to remove water;
C. sintered synthesis
Putting the material prepared in the step B into a kiln in an oxygen atmosphere for stepped sintering, sintering for 5-6 hours at 450-500 ℃ and sintering for 5-6 hours at 750-800 ℃;
D. mechanical crushing
C, coarsely crushing the sintered material in the step C by means of a jaw crushing double-roll machine, wherein the particle size of the coarsely crushed material is 1-2 mm; finely crushing the coarsely crushed material by a mechanical crusher, wherein the granularity of the finely crushed material is 10-12 um;
E. magnetic removal by sieving
D, removing foreign matters, large particles and other substances from the crushed material in the step D through a 325-mesh vibrating screen; removing magnetic substances in the sieved materials by a 9000GS iron remover;
F. washing to remove impurities
Putting the material treated in the step E into pure water, mixing and stirring for 0.5-1 hour, wherein the mass ratio of the material to the pure water is 1: 1, and the resistivity of the pure water is 10-18M omega cm; removing water containing alkaline and ionic impurities from the mixed and stirred materials by a centrifugal machine or a filter press;
G. intermediate temperature drying
Putting the material washed and decontaminated in the step F into a vacuum baking oven, and baking the material in a vacuum environment of-0.08 to-0.1 MPa at 350 to 400 ℃;
H. mechanical depolymerization
And D, depolymerizing the material treated in the step G by using a closed negative pressure type thermal cycle mechanical pulverizer to obtain the nickel-cobalt lithium aluminate composite cathode material.
2. The method for preparing the low-cost high-performance nickel cobalt lithium aluminate composite cathode material according to claim 1, wherein the method comprises the following steps: in the step A and the step B, the nano metal liquid phase is dispersed and pre-coated, in the step C, the nano metal oxide shell coating layer is synthesized by adopting medium-low temperature step sintering, and in the step D, the dispersed material particles are mechanically depolymerized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926522.XA CN112079399B (en) | 2020-09-07 | 2020-09-07 | Preparation method of low-cost high-performance nickel cobalt lithium aluminate composite positive electrode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010926522.XA CN112079399B (en) | 2020-09-07 | 2020-09-07 | Preparation method of low-cost high-performance nickel cobalt lithium aluminate composite positive electrode material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112079399A true CN112079399A (en) | 2020-12-15 |
| CN112079399B CN112079399B (en) | 2023-08-22 |
Family
ID=73732832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010926522.XA Active CN112079399B (en) | 2020-09-07 | 2020-09-07 | Preparation method of low-cost high-performance nickel cobalt lithium aluminate composite positive electrode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112079399B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482210A (en) * | 2017-07-14 | 2017-12-15 | 广东工业大学 | A kind of magnesia@nickel cobalt lithium aluminate cathode materials and preparation method and application |
| CN108206276A (en) * | 2016-12-19 | 2018-06-26 | 天津国安盟固利新材料科技股份有限公司 | A kind of lithium ion anode material of compound coating and preparation method thereof |
| CN109148872A (en) * | 2018-10-10 | 2019-01-04 | 新乡天力锂能股份有限公司 | A kind of method preparing nickel cobalt lithium aluminate cathode material and the nickel cobalt lithium aluminate prepared with this method |
| CN111525118A (en) * | 2020-05-15 | 2020-08-11 | 陕西红马科技有限公司 | Preparation method of mixed nickel-cobalt lithium aluminate anode material |
| US20200274160A1 (en) * | 2018-03-21 | 2020-08-27 | Lionano (Zhejiang) Inc. | Nickel-cobalt-aluminium ternary lithium ion battery cathode material, preparation method and application thereof, and lithium ion battery |
-
2020
- 2020-09-07 CN CN202010926522.XA patent/CN112079399B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206276A (en) * | 2016-12-19 | 2018-06-26 | 天津国安盟固利新材料科技股份有限公司 | A kind of lithium ion anode material of compound coating and preparation method thereof |
| CN107482210A (en) * | 2017-07-14 | 2017-12-15 | 广东工业大学 | A kind of magnesia@nickel cobalt lithium aluminate cathode materials and preparation method and application |
| US20200274160A1 (en) * | 2018-03-21 | 2020-08-27 | Lionano (Zhejiang) Inc. | Nickel-cobalt-aluminium ternary lithium ion battery cathode material, preparation method and application thereof, and lithium ion battery |
| CN109148872A (en) * | 2018-10-10 | 2019-01-04 | 新乡天力锂能股份有限公司 | A kind of method preparing nickel cobalt lithium aluminate cathode material and the nickel cobalt lithium aluminate prepared with this method |
| CN111525118A (en) * | 2020-05-15 | 2020-08-11 | 陕西红马科技有限公司 | Preparation method of mixed nickel-cobalt lithium aluminate anode material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112079399B (en) | 2023-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112086628B (en) | Preparation method of single-crystal high-voltage multi-element composite cathode material | |
| CN107275606B (en) | Carbon-coated spinel lithium manganate nanocomposite and preparation method and application thereof | |
| CN109390579B (en) | Preparation method of dry-method and wet-method carbon-coated high-nickel ternary cathode material | |
| CN111769267A (en) | Composite positive electrode material of lithium ion battery and preparation method thereof | |
| CN111697204A (en) | Lithium lanthanum zirconium oxide/lithium cobaltate composite material and preparation method and application thereof | |
| CN103682278B (en) | The preparation method of the coated lithium titanate anode material of a kind of nanometer carbon | |
| JPWO2021238050A5 (en) | ||
| CN116706050B (en) | Medium-low nickel monocrystal ternary positive electrode material, preparation method thereof and battery | |
| CN112079399B (en) | Preparation method of low-cost high-performance nickel cobalt lithium aluminate composite positive electrode material | |
| CN114132970B (en) | Method for improving circulation stability of positive electrode material, positive electrode material and lithium ion battery | |
| He et al. | Synthesis and electrochemical properties of SnO2-polyaniline composite | |
| CN113206250B (en) | Semiconductor cathode material and preparation method thereof | |
| CN106067548B (en) | A kind of SnO2/ iron tungstate lithium/carbon composite nano-material and preparation method thereof | |
| CN102447149A (en) | Method for applying waste lithium ion battery cathode material to nickel-cobalt battery anode material | |
| CN114914414A (en) | Preparation method of silicon/titanium-niobium oxide composite anode material of lithium ion battery | |
| CN112952075A (en) | Composite negative electrode material, preparation method thereof, negative electrode material and lithium ion battery | |
| CN114665069A (en) | Lithium-rich manganese-based composite cathode material and preparation method and application thereof | |
| CN111952561A (en) | Self-templated synthesis of CoIn2S4@ CPAN microsphere composite material and method thereof | |
| CN114853089B (en) | Magnesium borate coated high-nickel ternary cathode material and preparation method thereof | |
| CN116495715B (en) | Lithium iron phosphate positive electrode material, and preparation method and application thereof | |
| Apostolova et al. | Thin-Layer Electrochemically Produced SiO 2/Ni Composites in a Prototyping Lithium-Ion Battery | |
| Tingfeng et al. | Powder electrochemical properties with different particle sizes of spinel LiAl0. 05Mn1. 95O4 synthesized by sol-gel method | |
| CN117790766A (en) | Antimony-based multielement alloy material and application thereof in lithium ion battery | |
| CN117790765A (en) | Antimony-based multielement alloy material and application thereof in lithium ion battery | |
| CN112694087A (en) | Method for preparing low-cost negative electrode material by recycling resistance material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |