CN106374100A - Lithium ion battery nickel cobalt lithium manganate cathode material and preparation method thereof - Google Patents
Lithium ion battery nickel cobalt lithium manganate cathode material and preparation method thereof Download PDFInfo
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- CN106374100A CN106374100A CN201611096504.3A CN201611096504A CN106374100A CN 106374100 A CN106374100 A CN 106374100A CN 201611096504 A CN201611096504 A CN 201611096504A CN 106374100 A CN106374100 A CN 106374100A
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- 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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- 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
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- 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
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- 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 relates to a lithium ion battery nickel cobalt lithium manganate cathode material and a preparation method thereof. The method includes the following steps that a mixed solution of a lithium source, nickel source, cobalt source and manganese source compound with the total metal ion concentration being 0.01-10 mol/L is prepared according to the stoichiometric ratio, and the temperature of the mixed solution is preserved under the condition of stirring; then a solvent is heated and evaporated to obtain a gel-like precursor; the gel-like precursor is dried and ground to obtain precursor powder; the precursor powder is subjected to heat treatment to obtain the lithium ion battery nickel cobalt lithium manganate cathode material. Polyhydric alcohols serve as reaction media to obtain lithium-rich cathode Li1.2Ni0.13Co0.13Mn0.54O2 nano plates. The obtained nano plate material has good circulating stability and rate capability and can provide more active sites for lithium ion diffusion, and accordingly the specific capacity and rate capability of the material are improved. The method is simple in technical operation, mild in condition, low in cost and suitable for mass industrial production.
Description
Technical field
The present invention relates to the preparation method of anode material for lithium-ion batteries, rich in particular to a kind of lithium ion battery
The preparation method of lithium anode material, the high-performance richness lithium nano-plates positive pole exposing more particularly, to a kind of electro-chemical activity face
The preparation method of material and its application as anode material for lithium-ion batteries, especially a kind of lithium ion battery nickle cobalt lithium manganate
Positive electrode and preparation method thereof.
Background technology
In recent years, lithium ion battery is in high power density and high energy such as electric automobile, mixed type electric automobile, energy stores
Application in metric density equipment receives much concern.The demand growing in order to meet these applications, preparation has high specific capacity
Become to attach most importance to the positive electrode of high rate performance.Lithium-rich anode material is that a kind of have superelevation specific capacity " modern lithium-ion electric
Pond positive electrode ", specific capacity is more than 200mah/g hence it is evident that being higher than traditional positive electrode.Lithium-rich manganese-based anode material has layer
Shape α-nafeo2Structure, lithium ion embedded and abjection in the material is along a axle (or b axle), parallel to lithium ion layer, has
Two-dimensional diffusion passage.Its direction includes (010),, (100), (110),WithSix groups of crystal faces, Uniform Name
For { 010 } crystal face.{ 010 } crystal face is an open structure, can spread offer window for lithium ion, is that electrochemistry is lived
Property face.In addition, the crystal face perpendicular to c-axis is the closs packing that the octahedron being formed by transition metal and oxygen is connected to form by corner-sharing
Face, including (001),Crystal face, is named as { 001 } crystal face.{ 001 } crystal face is closs packing face, does not have the logical of lithium ion deintercalation
Road, prevents lithium ion to carry out deintercalation along c-axis, is electrochemicaUy inert face.Therefore, to have { 010 } electro-chemical activity face sudden and violent for synthesis
The lithium-rich manganese-based anode material of dew can improve the chemical property of material.But, the surface energy of { 010 } active face is higher, then
Layer structure essence plus material itself is so that the lithium-rich manganese-based anode material of synthesis { 010 } active face exposure is extremely difficult.
Content of the invention
The technical problem to be solved is: provides a kind of lithium ion battery richness preparing the exposure of electro-chemical activity face
The method of lithium nano-plates positive electrode, especially a kind of lithium ion battery nickle cobalt lithium manganate positive electrode and preparation method thereof, should
Method is to prepare the lithium ion battery richness lithium nano-plates positive pole material of electro-chemical activity face exposure as reaction medium using polyhydric alcohol
Material.
The purpose of the present invention is achieved through the following technical solutions:
A kind of lithium ion battery nickle cobalt lithium manganate positive electrode, the stoichiometric equation of this nickel-cobalt lithium manganate cathode material is
li1.2ni0.13co0.13mn0.54o2.
Further, the li that described nickel-cobalt lithium manganate cathode material exposes for electro-chemical activity face1.2ni0.13co0.13mn0.54o2
Nano-plates, the thickness of this nano-plates is 50-500nm.
Further, described li1.2ni0.13co0.13mn0.54o2Nano-plates front is { 001 } electrochemicaUy inert face, and side is
{ 010 } electro-chemical activity face.
A kind of preparation method of lithium ion battery nickle cobalt lithium manganate positive electrode, comprises the following steps:
Step (1), lithium source, nickel source, cobalt source and manganese source compound are li:ni:co:mn=1.2 according to mol ratio:
The metering of 0.13:0.13:0.54 is the mixed solution of 0.01-10mol/l than preparing metal total ion concentration；
Step (2), above-mentioned mixed solution is incubated under agitation；
Step (3), the mixed solution heating evaporation solvent after insulation obtains gel presoma；
Step (4), after gel presoma is dried, grinds and obtains precursor powder；
Step (5), described precursor powder is carried out heat treatment, obtains described nickel-cobalt lithium manganate cathode material.
Further, described Li source compound is Lithium hydrate, lithium acetate, lithium nitrate, one or more of lithium chloride
Mixing；Described nickel source compound is nickel sulfate, Nickel dichloride., nickel acetate, and one or more of nickel nitrate mixes；Described cobalt source
Compound is cobaltous sulfate, cobaltous chloride, cobalt acetate, and one or more of cobalt nitrate mixes；Described manganese source compound is manganese sulfate, chlorine
Change manganese, manganese acetate, one or more of manganese nitrate mixes；
Described formed metal mixed solution solvent be ethylene glycol, 1,3-PD, 1,2- butanediol, 1,3 butylene glycol or
One or more of PEG400 mixes.
Further, carry out in step (2) being incubated 1-12 hour at 60-150 DEG C.
Further, in step (3), solvent evaporating temperature is 60-200 DEG C, and evaporation time is 1-48 hour.
Further, the baking temperature in step (4) is 100-200 DEG C, and drying time is 1-24 hour.
Further, the heat treatment of described precursor powder is a step sintering process, sinters 1-24 hour at 500-1000 DEG C.
Further, the heat treatment of described precursor powder is two-step sintering method, first little in 300-500 DEG C of sintering 1-12
When, then sinter 1-12 hour at 600-1000 DEG C.
The invention has the benefit that
First, lithium-enriched cathodic material of lithium ion battery li is obtained as reaction medium using polyhydric alcohol1.2ni0.13co0.13mn0.54o2.
Second, the product obtaining is the lithium-rich anode material li with the exposure of { 010 } active face1.2ni0.13co0.13mn0.54o2
Nano-plates, its a size of 0.2-2 μm, thickness is 50-200nm.Described li1.2ni0.13co0.13mn0.54o2Nano-plates front is
{ 001 } electrochemicaUy inert face, side is { 010 } electro-chemical activity face.
Third, the product lithium-rich anode material li obtaining1.2ni0.13co0.13mn0.54o2Nano-plates have good forthright again
Energy and cyclical stability.
The lithium-rich anode li that { 010 } electro-chemical activity face obtained as above exposes1.2ni0.13co0.13mn0.54o2Nano-plate
Material, has good cyclical stability and high rate performance.The lithium-rich anode being obtained as reaction medium using polyhydric alcohol
li1.2ni0.13co0.13mn0.54o2Nano-plates, the exposure due to substantial amounts of electro-chemical activity face can provide for the diffusion of lithium ion
More avtive spots, thus improve specific capacity and the high rate performance of material.Present invention process is simple to operate, mild condition, becomes
This is low, is suitable for industrial volume production.
Brief description
Fig. 1 is the lithium-rich anode li prepared by embodiment 11.2ni0.13co0.13mn0.54o2The x- ray of nano-plates material spreads out
Penetrate figure；
Fig. 2 is the lithium-rich anode li prepared by embodiment 11.2ni0.13co0.13mn0.54o2The sem figure of nano-plates material；
Fig. 3 is the lithium-rich anode li prepared by embodiment 11.2ni0.13co0.13mn0.54o2The tem figure of nano-plates material；
Fig. 4 is the hrtem figure at a in Fig. 3；
Fig. 5 is the hrtem figure at b in Fig. 3；
Fig. 6 is the lithium-rich anode li prepared by embodiment 11.2ni0.13co0.13mn0.54o2The stable circulation of nano-plates material
Property figure, wherein electric current density be 1c=300ma/g.
Specific embodiment
For a better understanding of the present invention, with reference to example, the present invention will be further described, but application claims are protected
Shield scope is not limited to the express ranges of embodiment.
Case study on implementation 1
Step 1, weighs lithium nitrate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in ethylene glycol, form metal
Total ion concentration is the mixed solution of 0.05mol/l；
Step 2, above-mentioned mixed solution is stirred at 85 DEG C insulation 12 hours；
Step 3, the mixed solution after insulation is heated to 120 DEG C of evaporation solvents 24 hours, obtains gel presoma；
Step 4, by gel presoma after 200 DEG C of dryings 12 hours, grinds and obtains precursor powder；
Step 5, by described precursor powder first in 450 DEG C of pre-burnings 5 hours, then sinters 12 hours at 850 DEG C again, obtains
Described lithium-rich anode li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Fig. 1 is lithium-rich anode li1.2ni0.13co0.13mn0.54o2The x-ray diffraction collection of illustrative plates of nano-plates material, analysis of material
Crystal structure.
Fig. 2-Fig. 5 is lithium-rich anode li1.2ni0.13co0.13mn0.54o2Sem the and tem photo of nano-plates material, display is sudden and violent
Nano-plates pattern and the structure of { 010 } crystal face are revealed.
Fig. 6 is lithium-rich anode li1.2ni0.13co0.13mn0.54o2The cyclical stability of nano-plates material and high rate performance figure,
Show excellent chemical property.
The preparation of based lithium-ion battery positive plate and button cell test: 80:10:10 weighs lithium-rich anode in mass ratio
li1.2ni0.13co0.13mn0.54o2Nano-plates material, conductive black, Kynoar (pvdf), add n- methyl pyrrolidone
(nmp), after solvent, ground and mixed obtains slurry.Slurry is coated in current collector aluminum foil, at 120 DEG C, vacuum drying 10 is little
When.Strike out the positive pole disk of a diameter of 14mm size.Negative pole adopts metal lithium sheet, and barrier film adopts celgard2400 film, electrolysis
Liquid is 1m lipf6Ec:dmc:dec=1:1:1 (volume ratio) electrolyte, in the dry glove box full of argon assemble
Become cr2025 button cell.Battery testing adopts blue electricity battery test system (land ct-2001a) to carry out, charge and discharge at room temperature
Piezoelectric voltage scope is 2.0-4.8v.Obtain the test result of Fig. 6 in the method.
Case study on implementation 2
Step 1, weighs Quilonorm (SKB), nickel acetate, cobalt acetate and manganese acetate by metering ratio, is dissolved in ethylene glycol, form metal
Total ion concentration is the mixed solution of 0.01mol/l；
Step 2, above-mentioned mixed solution is stirred at 60 DEG C insulation 12 hours；
Step 3, the mixed solution after insulation is heated to 200 DEG C of evaporation solvents 1 hour, obtains gel presoma；
Step 4, by gel presoma after 200 DEG C of dryings 12 hours, grinds and obtains precursor powder；
Step 5, by described precursor powder first in 300 DEG C of pre-burnings 12 hours, then sinters 1 hour at 1000 DEG C again, obtains
To described lithium-rich anode li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 3
Step 1, weighs lithium chloride, Nickel dichloride., cobaltous chloride and manganese chloride by metering ratio, is dissolved in ethylene glycol, form metal
Total ion concentration is the mixed solution of 10mol/l；
Step 2, above-mentioned mixed solution is stirred at 150 DEG C insulation 1 hour；
Step 3, the mixed solution after insulation is heated to 60 DEG C of evaporation solvents 48 hours, obtains gel presoma；
Step 4, by gel presoma after 100 DEG C of dryings 24 hours, grinds and obtains precursor powder；
Step 5, by described precursor powder first in 500 DEG C of pre-burnings 1 hour, then sinters 12 hours at 600 DEG C again, obtains
Described lithium-rich anode li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 4
Step 1, weighs lithium nitrate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in 1,3-PD, formed
Metal ion total concentration is the mixed solution of 0.01mol/l；
Step 2, above-mentioned mixed solution is stirred at 100 DEG C insulation 8 hours；
Step 3, the mixed solution after insulation is heated to 180 DEG C of evaporation solvents 20 hours, obtains gel presoma；
Step 4, by gel presoma after 180 DEG C of dryings 10 hours, grinds and obtains precursor powder；
Step 5, by described precursor powder first in 400 DEG C of pre-burnings 8 hours, then sinters 10 hours at 800 DEG C again, obtains
Described lithium-rich anode li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 5
Step 1, weighs Lithium hydrate, nickel sulfate, cobaltous sulfate and manganese sulfate by metering ratio, is dissolved in 1,3-PD, shape
Become the mixed solution that metal ion total concentration is 10mol/l；
Step 2, above-mentioned mixed solution is stirred at 90 DEG C insulation 12 hours；
Step 3, the mixed solution after insulation is heated to 150 DEG C of evaporation solvents 24 hours, obtains gel presoma；
Step 4, by gel presoma after 150 DEG C of dryings 20 hours, grinds and obtains precursor powder；
Step 5, by described precursor powder first in 350 DEG C of pre-burnings 10 hours, then sinters 12 hours at 700 DEG C again, obtains
To described lithium-rich anode li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 6
Step 1, weighs Quilonorm (SKB), nickel acetate, cobalt acetate and manganese acetate by metering ratio, is dissolved in 1,3-PD, formed
Metal ion total concentration is the mixed solution of 5mol/l；
Step 2, above-mentioned mixed solution is stirred at 120 DEG C insulation 6 hours；
Step 3, the mixed solution after insulation is heated to 120 DEG C of evaporation solvents 36 hours, obtains gel presoma；
Step 4, by gel presoma after 120 DEG C of dryings 24 hours, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 24 hours at 500 DEG C, obtains described lithium-rich anode
li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 7
Step 1, weighs lithium nitrate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in 1,2- butanediol, formed
Metal ion total concentration is the mixed solution of 0.2mol/l；
Step 2, above-mentioned mixed solution is stirred at 85 DEG C insulation 8 hours；
Step 3, the mixed solution after insulation is heated to 60 DEG C of evaporation solvents 48 hours, obtains gel presoma；
Step 4, by gel presoma after latter 1 hour of 200 DEG C of dryings, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 1 hour at 1000 DEG C, obtains described lithium-rich anode
li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 8
Step 1, weighs lithium nitrate, Nickel dichloride., cobalt nitrate and manganese acetate by metering ratio, is dissolved in 1,2- butanediol, formed
Metal ion total concentration is the mixed solution of 2mol/l；
Step 2, above-mentioned mixed solution is stirred at 120 DEG C insulation 5 hours；
Step 3, the mixed solution after insulation is heated to 90 DEG C of evaporation solvents 40 hours, obtains gel presoma；
Step 4, by gel presoma after latter 18 hours of 150 DEG C of dryings, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 10 hours at 850 DEG C, obtains described lithium-rich anode li1.2ni0.13co0.13mn0.54
o2Nano-plates material.
Case study on implementation 9
Step 1, weighs lithium sulfate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in 1,3 butylene glycol, formed
Metal ion total concentration is the mixed solution of 0.01mol/l；
Step 2, above-mentioned mixed solution is stirred at 150 DEG C insulation 4 hours；
Step 3, the mixed solution after insulation is heated to 80 DEG C of evaporation solvents 48 hours, obtains gel presoma；
Step 4, by gel presoma after latter 14 hours of 160 DEG C of dryings, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 16 hours at 800 DEG C, obtains described lithium-rich anode
li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 10
Step 1, weighs Lithium hydrate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in PEG400, shape
Become the mixed solution that metal ion total concentration is 0.5mol/l；
Step 2, above-mentioned mixed solution is stirred at 70 DEG C insulation 10 hours；
Step 3, the mixed solution after insulation is heated to 160 DEG C of evaporation solvents 30 hours, obtains gel presoma；
Step 4, by gel presoma after latter 15 hours of 170 DEG C of dryings, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 18 hours at 700 DEG C, obtains described lithium-rich anode
li1.2ni0.13co0.13mn0.54o2Nano-plates material.
Case study on implementation 11
Step 1, weighs lithium nitrate, nickel nitrate, cobalt nitrate and manganese acetate by metering ratio, is dissolved in ethylene glycol and Polyethylene Glycol mixes
In bonding solvent, form the mixed solution that metal ion total concentration is 0.01mol/l；
Step 2, above-mentioned mixed solution is stirred at 60 DEG C insulation 12 hours；
Step 3, the mixed solution after insulation is heated to 100 DEG C of evaporation solvents 38 hours, obtains gel presoma；
Step 4, by gel presoma after latter 20 hours of 150 DEG C of dryings, grinds and obtains precursor powder；
Step 5, described precursor powder is sintered 12 hours at 900 DEG C, obtains described lithium-rich anode
li1.2ni0.13co0.13mn0.54o2Nano-plates material.
The above, be only presently preferred embodiments of the present invention, not the present invention is done with any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any is familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above make a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
To any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of lithium ion battery nickle cobalt lithium manganate positive electrode is it is characterised in that the chemistry of described nickel-cobalt lithium manganate cathode material
Metering-type is li1.2ni0.13co0.13mn0.54o2.
2. nickel-cobalt lithium manganate cathode material as claimed in claim 1 is it is characterised in that described nickel-cobalt lithium manganate cathode material is
The li that electro-chemical activity face exposes1.2ni0.13co0.13mn0.54o2Nano-plates, this nanometer of plate thickness is 50-500nm.
3. nickel-cobalt lithium manganate cathode material as claimed in claim 2 is it is characterised in that described li1.2ni0.13co0.13mn0.54o2Receive
Rice plate front is { 001 } electrochemicaUy inert face, and side is { 010 } electro-chemical activity face.
4. a kind of preparation method of lithium ion battery nickle cobalt lithium manganate positive electrode is it is characterised in that comprise the following steps:
Step (1), lithium source, nickel source, cobalt source and manganese source compound are li:ni:co:mn=1.2:0.13 according to mol ratio:
The metering of 0.13:0.54 is the mixed solution of 0.01-10mol/l than preparing metal total ion concentration；
Step (2), above-mentioned mixed solution is incubated under agitation；
Step (3), the mixed solution heating evaporation solvent after insulation obtains gel presoma；
Step (4), after gel presoma is dried, grinds and obtains precursor powder；
Step (5), described precursor powder is carried out heat treatment, obtains described nickel-cobalt lithium manganate cathode material.
5. preparation method as claimed in claim 4 it is characterised in that described Li source compound be Lithium hydrate, lithium acetate, nitre
Sour lithium, one or more of lithium chloride mixes；Described nickel source compound is nickel sulfate, Nickel dichloride., and nickel acetate, in nickel nitrate
One or more mixing；Described cobalt source compound is cobaltous sulfate, cobaltous chloride, cobalt acetate, and one or more of cobalt nitrate mixes；
Described manganese source compound is manganese sulfate, manganese chloride, manganese acetate, and one or more of manganese nitrate mixes；
The described solvent forming metal mixed solution is ethylene glycol, 1,3-PD, 1,2- butanediol, 1,3 butylene glycol or poly- second
One or more of glycol 400 mixes.
6. preparation method as claimed in claim 4 it is characterised in that carry out at 60-150 DEG C in step (2) be incubated 1-12 little
When.
7. preparation method as claimed in claim 4 it is characterised in that in step (3) solvent evaporating temperature be 60-200 DEG C, steam
The time of sending out is 1-48 hour.
8. preparation method as claimed in claim 4, it is characterised in that the baking temperature in step (4) is 100-200 DEG C, is dried
Time is 1-24 hour.
9. preparation method as claimed in claim 4 it is characterised in that described precursor powder heat treatment be a step sintering process,
Sinter 1-24 hour at 500-1000 DEG C.
10. preparation method as claimed in claim 4 is it is characterised in that the heat treatment of described precursor powder is two-step sintering
Method, first sinters 1-12 hour at 300-500 DEG C, then sinters 1-12 hour at 600-1000 DEG C.
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| CN107804879A (en) * | 2017-10-18 | 2018-03-16 | 重庆特瑞新能源材料有限公司 | A kind of method that nanosizing prepares monocrystalline anode material of lithium battery |
| CN108598396A (en) * | 2018-03-30 | 2018-09-28 | 华南师范大学 | A kind of preparation method of regenerative lithium ion anode material |
| CN109742349A (en) * | 2018-12-28 | 2019-05-10 | 上海第二工业大学 | It is a kind of using MOF as the lithium-rich manganese-based tertiary cathode material of carbon coating high capacity and preparation method of carbon source |
| CN110311101A (en) * | 2019-06-12 | 2019-10-08 | 常州大学 | Li1.2Ni0.13Co0.13Mn0.54O2/Al2O3The preparation method of composite material |
| CN112786877A (en) * | 2021-03-08 | 2021-05-11 | 昆明理工大学 | Preparation method of lithium-rich manganese-based positive electrode material |
| CN112875766A (en) * | 2021-01-28 | 2021-06-01 | 山东宏匀纳米科技有限公司 | Method for preparing ternary cathode material by microwave heating solution method with carbon source added |
| WO2022161090A1 (en) * | 2021-01-28 | 2022-08-04 | 广东邦普循环科技有限公司 | Positive electrode material precursor, preparation method therefor and application thereof |
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| CN107804879A (en) * | 2017-10-18 | 2018-03-16 | 重庆特瑞新能源材料有限公司 | A kind of method that nanosizing prepares monocrystalline anode material of lithium battery |
| CN108598396A (en) * | 2018-03-30 | 2018-09-28 | 华南师范大学 | A kind of preparation method of regenerative lithium ion anode material |
| CN109742349A (en) * | 2018-12-28 | 2019-05-10 | 上海第二工业大学 | It is a kind of using MOF as the lithium-rich manganese-based tertiary cathode material of carbon coating high capacity and preparation method of carbon source |
| CN109742349B (en) * | 2018-12-28 | 2022-02-15 | 上海第二工业大学 | Carbon-coated high-capacity lithium-rich manganese-based ternary positive electrode material taking MOF as carbon source and preparation method thereof |
| CN110311101A (en) * | 2019-06-12 | 2019-10-08 | 常州大学 | Li1.2Ni0.13Co0.13Mn0.54O2/Al2O3The preparation method of composite material |
| CN112875766A (en) * | 2021-01-28 | 2021-06-01 | 山东宏匀纳米科技有限公司 | Method for preparing ternary cathode material by microwave heating solution method with carbon source added |
| WO2022161090A1 (en) * | 2021-01-28 | 2022-08-04 | 广东邦普循环科技有限公司 | Positive electrode material precursor, preparation method therefor and application thereof |
| GB2617024A (en) * | 2021-01-28 | 2023-09-27 | Guangdong Brunp Recycling Technology Co Ltd | Positive electrode material precursor, preparation method therefor and application thereof |
| ES2954791R1 (en) * | 2021-01-28 | 2024-03-18 | Guangdong Brunp Recycling Technology Co Ltd | PRECURSOR OF CATHODE MATERIAL AND METHOD OF PREPARATION AND APPLICATION THEREOF |
| CN112786877A (en) * | 2021-03-08 | 2021-05-11 | 昆明理工大学 | Preparation method of lithium-rich manganese-based positive electrode material |
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