CN103972492A - Method for preparing nickel-base ternary cathode material through microwaves - Google Patents
Method for preparing nickel-base ternary cathode material through microwaves Download PDFInfo
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- CN103972492A CN103972492A CN201410125187.8A CN201410125187A CN103972492A CN 103972492 A CN103972492 A CN 103972492A CN 201410125187 A CN201410125187 A CN 201410125187A CN 103972492 A CN103972492 A CN 103972492A
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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
- 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
-
- 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 method for preparing a ternary cathode material through microwave synthesis, drying and sintering. The method is characterized by comprising steps as follows: (1), a ternary mixed liquid of nickel salt, cobalt salt, manganese salt and carbonate water-alcohol is prepared proportionally; (2), a carbonate solution is mixed with the ternary mixed liquid, and the mixture is subjected to microwave heating and stirring; (3), co-precipitate is filtered, washed and subjected to vacuum drying; and (4), the dried co-precipitate and lithium salt are mixed, ground and placed in a chamber type electric resistance furnace or a microwave sintering furnace for a high-temperature solid-phase reaction, and the cathode material adopting a laminated structure LiNixCoyMn<1-x-y>O2 is obtained, wherein x is equal to 0.5, and y is equal to 0.2 or 0.3. The ternary cathode material is prepared and obtained through ternary coprecipitation of carbonate, nickel, cobalt and manganese, microwave synthesis and sintering, the first charge-discharge efficiency is larger than 91%, the discharge capacity is larger than 155 mAh/g at the discharge rate of 0.5 C, and the cycle performance is excellent.
Description
Technical field
The invention belongs to new energy materials technical field, relate to synthetic, the dry and sintering of a kind of microwave and prepare Ni-based LiNi
xco
ymn
1-x-yo
2the method of (X=0.5, Y=0.2 or 0.3) tertiary cathode material.
Background technology
Lithium ion battery has advantages of that volume is little, quality is light, voltage is high, specific capacity is high, has extended cycle life, memory-less effect, self discharge is little and pollute little, since the nineties in 20th century, business-like lithium ion battery is widely used in the portable product fields such as mobile phone, digital camera, notebook computer and medicine equipment, automobile, space industry.In recent years, along with the generally reduction of electronic product price, lithium ion battery consumption sharply increases, and at present, China is world's lithium battery largest production, consumption and exported country.
Nickle cobalt lithium manganate is as a kind of novel battery material, is a large focus of lithium ion battery area research now.This ternary material combines LiNiO
2, LiMnO
2and LiCoO
2advantage: service life cycle is long, fail safe good, cost is low, capacity is high.Current business-like ternary material has three kinds, is respectively LiNi
1/3co
1/3mn
1/3o
2, LiNi
0.4co
0.2mn
0.4o
2and LiNi
0.5co
0.2mn
0.3o
2, 333,424 and 523, wherein LiNi
1/3co
1/3mn
1/3o
2that applies is maximum.In recent years, along with rising steadily of metallic cobalt valency, domestic enterprise is used nickel-cobalt-manganese ternary material substitution part cobalt lithium one after another, and ternary material cheap and superior performance can further embody competitive advantage, seizes more market shares.
The tertiary cathode material actual specific capacity using is at present lower, and efficiency, cycle performance, conductivity and high rate performance have the space of lifting first.Studying more for the preparation method of ternary material presoma is hydroxide coprecipitation step, but this technique still exists certain deficiency:
(1) pH that nickel, cobalt, manganese precipitate is completely interval different, and its co-precipitation needs complexing agent, has certain complexing power though study more complexing agent ammoniacal liquor, and environmental pollution is larger; Complexing agent, to nickel, cobalt, manganese complexing power difference, can not arbitrarily be changed mixture ratio, causes material controllability poor;
(2) nickel, cobalt, manganese precipitation of hydroxide moisture absorption are strong, and persursor material performance is had to larger impact; In actual production, precipitation of hydroxide is easily oxidized and degree of oxidation is inhomogeneous in addition, be unfavorable for subsequent material synthesis technique, affect the performance index of ternary material, in industrial production, the defect of the method maximum is exactly to produce the second particle of reunion, and electrode processing characteristics is very poor.
Summary of the invention
The deficiency of preparing in order to overcome existing tertiary cathode material, the invention provides synthetic, the dry and sintering of a kind of microwave and prepares Ni-based LiNi
xco
ymn
1-x-yo
2the method of (X=0.5, Y=0.2 or 0.3) tertiary cathode material.
The technical solution adopted for the present invention to solve the technical problems is: a kind of microwave synthesizes, is dried and sintering is prepared Ni-based LiNi
xco
ymn
1-x-yo
2the method of (X=0.5, Y=0.2 or 0.3) tertiary cathode material, comprises the preparation of ternary mixed liquor, the preparation of soluble-salt feed liquid, coprecipitated reaction, filtration and oven dry, joins lithium and high temperature solid state reaction, and concrete steps are as follows:
The preparation of step 1 ternary mixed liquor: by least one nickel salt in nickelous sulfate, nickel nitrate, nickel chloride, at least one cobalt salt in cobaltous sulfate, cobalt nitrate, cobalt chloride, at least one manganese salt in manganese sulfate, manganese nitrate, manganese chloride is pressed Ni:Co:Mn amount of substance and is mixed than 5:3:2 or 5:2:3, add mixed liquor the stirring and dissolving of deionized water and alcohols, it is a certain amount of that GOLD FROM PLATING SOLUTION belongs to ion concentration, and the volume of at least one alcohols in mixed liquor in absolute ethyl alcohol, ethylene glycol, propyl alcohol, isopropyl alcohol accounts for 0%～20% of mixed liquor;
The preparation of step 2 soluble-salt feed liquid: the mixed liquor that soluble-salt is dissolved in to deionized water and alcohols, heating is dissolved completely, in solution, soluble-salt concentration is a certain amount of, and the volume of at least one alcohols in mixed liquor in absolute ethyl alcohol, ethylene glycol, propyl alcohol, isopropyl alcohol accounts for 0%～20% of mixed liquor;
The coprecipitated reaction of step 3: after soluble-salt to be heated in step 2 is dissolved completely, it is mixed rapidly with the ternary mixed liquor in step 1,40～90 DEG C of microwave heatings are also stirred 5～120 minutes;
Step 4 is filtered and is dried: by after the ageing of above-mentioned coprecipitation reaction mixture, carry out Separation of Solid and Liquid, with deionized water washing to detecting in wash filtrate containing Cl
-or SO
4 2-, filtrate is placed in to vacuum or microwave drier, in 60 DEG C～90 DEG C, vacuum degree 1 × 10
-5pa, dry 1h～12h;
Step 5 is joined lithium and high temperature solid state reaction: be that presoma is allocated lithium carbonate into by above-mentioned oven dry thing, lithium hydroxide, lithium acetate, at least one lithium salts mixed grinding in lithium oxalate, joining lithium amount is Li:(Ni+Co+Mn) mol ratio is 1～1.2, milled mixtures is placed in to chamber type electric resistance furnace or microwave agglomerating furnace air or oxygen atmosphere is carried out high temperature solid state reaction, heat at 400 DEG C～600 DEG C and be incubated 0.5h～12h, be warmed up to again 750 DEG C～1000 DEG C, solid-phase sintering 10min～24h, last cool to room temperature, obtain the Ni-based layer structure LiNi of one of the present invention
xco
ymn
1-x-yo
2tertiary cathode material,
It is characterized in that:
Described soluble-salt is at least one carbonate in ammonium carbonate, sodium carbonate, potash;
It is 0.5mol/L～2mol/L that GOLD FROM PLATING SOLUTION in the preparation of described step 1 ternary mixed liquor belongs to ion concentration;
In the preparation of described step 2 soluble-salt feed liquid, in solution, soluble-salt concentration is that carbonate concentration is 0.5～2mol/L.
Beneficial effect of the present invention is: (1) the present invention adopts soluble carbonate salt and nickel cobalt manganese microwave reaction coprecipitation to prepare ternary material, utilize the ease of solubility of part carbonate, the uniformity of microwave heating, nickel cobalt manganese can be reached in proportion to precipitation completely, precursor is stable, is not easy oxidized; After co-precipitation of the present invention, do not need hydro-thermal reaction, shortened technological process, reduce energy consumption; The present invention adopts carbonate solution to mix rapidly with nickel ternary cobalt-manganese salt mixed liquor, and strengthen stirring dynamics, under microwave heating, make reactant react fully fast, form suitable particle size distribution anode material precursor, and then tertiary cathode material that can microwave sintering processability excellence; (2) pattern of the present invention's tertiary cathode material on preparation such as reaction temperature, mix and blend dynamics, charging rate in coprecipitation process, particle size distribution, chemical property, charge/discharge capacity etc. can make a significant impact; (3) presoma of the present invention adopts microwave to synthesize and vacuumize, and precursor mixes without ball milling, and positive electrode preparation adopts resistance furnace or microwave sintering, and energy consumption of the present invention is low, with short production cycle.
Utilize carbanion and nickel-cobalt-manganese ternary co-precipitation and microwave to synthesize calcined materials uniform particles, the ternary material first charge-discharge efficiency preparing exceedes more than 91%, 0.5C discharge capacity reaches 155mAh/g, and cycle performance is good.
Embodiment
The present invention executes and for example descends but do not limit the present invention.
Embodiment 1
(1) by 0.04molNiSO
46H
2o, 0.024molCoSO
47H
2o, 0.016molMnSO
4h
2o is dissolved in the deionized water of 80ml and the mixed liquor of isopropyl alcohol, and wherein isopropyl alcohol accounts for 10% of mixeding liquid volume.Under room temperature, be stirred to the ternary mixed solution that whole dissolvings are mixed with 1mol/L, after dissolving, Ni:Co:Mn amount of substance is than being 5:3:2.
(2) by (NH of 0.088mol
4)
2cO
3be dissolved in the deionized water of 160ml and the mixed liquor of isopropyl alcohol, wherein isopropyl alcohol accounts for 10% of mixeding liquid volume.The sal volatile that is stirred to whole dissolvings at 30 DEG C and is mixed with 0.55mol/L, the container that holds sal volatile is airtight, reduces evaporation of water amount.
(3) after the sal volatile of above-mentioned heating dissolves completely, it to be poured into rapidly in ternary mixed liquor, 60 DEG C of microwave heatings are also stirred 40 minutes.
(4) ageing of above-mentioned coprecipitation reaction mixture, after 5 minutes, is carried out to Separation of Solid and Liquid, with deionized water washing, BaCl
2detect to wash filtrate and do not contain SO
4 2-, by filtrate as in micro-wave vacuum stove, vacuum degree 1 × 10
-5pa, dry 12h in 60 DEG C.
(5) be the Li that presoma is allocated 0.048mol into by above-mentioned oven dry thing
2cO
3mixed grinding, join lithium amount Li:(Ni+Co+Mn) mol ratio is 1.2, by after milled mixtures 7MPa compacting, be placed under chamber type electric resistance furnace air atmosphere and carry out high temperature solid state reaction, be first warmed up to 460 DEG C, 460 DEG C of solid-phase sinterings 6 hours, be warmed up to again 880 DEG C, 880 DEG C of solid-phase sinterings 12 hours, last cool to room temperature, obtains wherein a kind of Ni-based LiNi of the present invention
0.5co
0.3mn
0.2o
2tertiary cathode material.
Embodiment 2
(1) by 0.06molNi (NO
3)
26H
2o, 0.036molCo (NO
3)
26H
2o, 0.048molMn (NO
3)
2(50% solution) is dissolved in the deionized water of 60ml and the mixed liquor of absolute ethyl alcohol, and wherein absolute ethyl alcohol accounts for 20% of mixeding liquid volume.Under room temperature, be stirred to the ternary mixed solution that whole dissolvings are mixed with 2mol/L, after dissolving, Ni:Co:Mn amount of substance is than being 5:3:2.
(2) by the Na of 0.132mol
2cO
3be dissolved in the deionized water of 180 ml and the mixed liquor of absolute ethyl alcohol, wherein absolute ethyl alcohol accounts for 20% of mixeding liquid volume, 40 DEG C of heating are stirred to the sodium carbonate liquor of whole dissolving preparations into about 0.7mol/L, and the container that holds sodium carbonate liquor is airtight, reduces evaporation of water amount.
(3) after the sodium carbonate liquor of above-mentioned heating dissolves completely, ternary mixed liquor to be poured into rapidly in sodium carbonate liquor, 40 DEG C of microwave heatings are also stirred 120 minutes.
(4) ageing of above-mentioned coprecipitation reaction mixture, after 10 minutes, is carried out to Separation of Solid and Liquid, it is neutral washing to pH value with deionized water, by filtrate as in micro-wave vacuum stove, vacuum degree 1 × 10
-5pa, dry 8h in 85 DEG C.
(5) be that to allocate LiOH into be 0.13mol mixed grinding to presoma by above-mentioned oven dry thing, join lithium amount Li:(Ni+Co+Mn) mol ratio is 1.1, milled mixtures is placed in and under chamber type electric resistance furnace oxygen atmosphere, carries out high temperature solid state reaction, first be warmed up to 400 DEG C, 400 DEG C of solid-phase sinterings 12 hours, then be warmed up to 750 DEG C, 750 DEG C of solid-phase sinterings 24 hours, last cool to room temperature, obtains wherein a kind of Ni-based LiNi of the present invention
0.5co
0.3mn
0.2o
2tertiary cathode material.
Embodiment 3
(1) by 0.05molNiCl
26H
2o, 0.03molCoCl
26H
2o, 0.02molMnCl
24H
2o is dissolved in the deionized water of 200ml and the mixed liquor of ethylene glycol, and wherein ethylene glycol accounts for 5% of mixeding liquid volume.Under room temperature, be stirred to the ternary mixed solution that whole dissolvings are mixed with 0.5mol/L, after dissolving, Ni:Co:Mn amount of substance is than being 5:3:2.
(2) by (NH of 0.11mol
4)
2cO
3be dissolved in the deionized water of 55ml and the mixed liquor of ethylene glycol, wherein ethylene glycol accounts for the sal volatile that is stirred to whole dissolvings at 5%, 40 DEG C of mixeding liquid volume and is mixed with 2mol/L, and the container that holds sal volatile is airtight, reduces evaporated quantity of water.
(3) after the solution of potassium carbonate of above-mentioned heating dissolves completely, it to be poured into rapidly in ternary mixed liquor, 70 DEG C of microwave heatings are also stirred 10 minutes.
(4) ageing of above-mentioned coprecipitation reaction mixture, after 10 minutes, is carried out to Separation of Solid and Liquid, it is neutral washing pH value with deionized water, AgNO
3detect to wash filtrate and do not contain Cl
-, by filtrate as in micro-wave vacuum stove, vacuum degree 1 × 10
-5pa, dry 1h in 90 DEG C.
(5) be that presoma is allocated CH into by above-mentioned oven dry thing
3cOOLi2H
2o is 0.12mol mixed grinding, join lithium amount Li:(Ni+Co+Mn) mol ratio is 1.2, milled mixtures is placed in and under microwave agglomerating furnace oxygen atmosphere, carries out high temperature solid state reaction, first be warmed up to 600 DEG C, 600 DEG C of solid-phase sinterings 0.5 hour, then be warmed up to 1000 DEG C, 1000 DEG C of solid-phase sinterings 10 minutes, last cool to room temperature, obtains wherein a kind of Ni-based LiNi of the present invention
0.5co
0.3mn
0.2o
2tertiary cathode material.
Embodiment 4
(1) by 0.08molNiSO
46H
2o, 0.032molCoSO
47H
2o, 0.048molMnSO
4h
2o is dissolved in the deionized water of 110ml.Under room temperature, be stirred to the ternary mixed solution that whole dissolvings are mixed with 1.45mol/L, after dissolving, Ni:Co:Mn amount of substance is than being 5:2:3.
(2) by the K of 0.176mol
2cO
3be dissolved in the deionized water of 110ml, be stirred to whole dissolvings at 50 DEG C and be mixed with the solution of potassium carbonate of 1.6mol/L, the container that holds solution of potassium carbonate is airtight, reduces evaporation of water amount.
(3) after the solution of potassium carbonate of above-mentioned heating dissolves completely, ternary mixed liquor to be poured into rapidly in solution of potassium carbonate, 90 DEG C of microwave heatings are also stirred 5 minutes.
(4) ageing of above-mentioned coprecipitation reaction mixture, after 5 minutes, is carried out to Separation of Solid and Liquid, it is neutral washing pH value with deionized water, BaCl
2detect to wash filtrate and do not contain SO
4 2-, by filtrate as in vacuum drying chamber, vacuum degree 1 × 10
-5pa, 80 DEG C of dry 6h.
(5) be that presoma is allocated LiHC into by above-mentioned oven dry thing
2o
4for 0.16mol mixed grinding, join lithium amount Li:(Ni+Co+Mn) mol ratio is 1, by after milled mixtures 8MPa compacting, be placed under chamber type electric resistance furnace oxygen atmosphere and carry out high temperature solid state reaction, be first warmed up to 430 DEG C, 430 DEG C of solid-phase sinterings 10 hours, be warmed up to again 920 DEG C, 920 DEG C of solid-phase sinterings 10 hours, last cool to room temperature, obtains wherein a kind of Ni-based LiNi of the present invention
0.5co
0.2mn
0.3o
2tertiary cathode material.
Claims (1)
1. synthetic, the dry and sintering of a microwave is prepared Ni-based LiNi
xco
ymn
1-x-yo
2the method of (X=0.5, Y=0.2 or 0.3) tertiary cathode material, comprises the preparation of ternary mixed liquor, the preparation of soluble-salt feed liquid, coprecipitated reaction, filtration and oven dry, joins lithium and high temperature solid state reaction, and concrete steps are as follows:
The preparation of step 1 ternary mixed liquor: by least one nickel salt in nickelous sulfate, nickel nitrate, nickel chloride, at least one cobalt salt in cobaltous sulfate, cobalt nitrate, cobalt chloride, at least one manganese salt in manganese sulfate, manganese nitrate, manganese chloride is pressed Ni:Co:Mn amount of substance and is mixed than 5:3:2 or 5:2:3, add mixed liquor the stirring and dissolving of deionized water and alcohols, it is a certain amount of that GOLD FROM PLATING SOLUTION belongs to ion concentration, and the volume of at least one alcohols in mixed liquor in absolute ethyl alcohol, ethylene glycol, propyl alcohol, isopropyl alcohol accounts for 0%～20% of mixed liquor;
The preparation of step 2 soluble-salt feed liquid: the mixed liquor that soluble-salt is dissolved in to deionized water and alcohols, heating is dissolved completely, in solution, soluble-salt concentration is a certain amount of, and the volume of at least one alcohols in mixed liquor in absolute ethyl alcohol, ethylene glycol, propyl alcohol, isopropyl alcohol accounts for 0%～20% of mixed liquor;
The coprecipitated reaction of step 3: after soluble-salt to be heated in step 2 is dissolved completely, it is mixed rapidly with the ternary mixed liquor in step 1,40～90 DEG C of microwave heatings are also stirred 5～120 minutes;
Step 4 is filtered and is dried: by after the ageing of above-mentioned coprecipitation reaction mixture, carry out Separation of Solid and Liquid, with deionized water washing to detecting in wash filtrate containing Cl
-or SO
4 2-, filtrate is placed in to vacuum or microwave drier, in 60 DEG C～90 DEG C, vacuum degree 1 × 10
-5pa, dry 1h～12h;
Step 5 is joined lithium and high temperature solid state reaction: be that presoma is allocated lithium carbonate into by above-mentioned oven dry thing, lithium hydroxide, lithium acetate, at least one lithium salts mixed grinding in lithium oxalate, joining lithium amount is Li:(Ni+Co+Mn) mol ratio is 1～1.2, milled mixtures is placed in to chamber type electric resistance furnace or microwave agglomerating furnace air or oxygen atmosphere is carried out high temperature solid state reaction, heat at 400 DEG C～600 DEG C and be incubated 0.5h～12h, be warmed up to again 750 DEG C～1000 DEG C, solid-phase sintering 10min～24h, last cool to room temperature, obtain the Ni-based layer structure LiNi of one of the present invention
xco
ymn
1-x-yo
2tertiary cathode material,
It is characterized in that:
Described soluble-salt is at least one carbonate in ammonium carbonate, sodium carbonate, potash;
It is 0.5mol/L～2mol/L that GOLD FROM PLATING SOLUTION in the preparation of described step 1 ternary mixed liquor belongs to ion concentration;
In the preparation of described step 2 soluble-salt feed liquid, in solution, soluble-salt concentration is that carbonate concentration is 0.5mol/L～2mol/L.
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Cited By (9)
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|---|---|---|---|---|
| CN104617289A (en) * | 2015-01-15 | 2015-05-13 | 湘潭大学 | Preparation method of hollow spherical lithium-enriched cathode material for lithium-ion battery |
| CN107546385A (en) * | 2017-09-11 | 2018-01-05 | 江西理工大学 | One kind prepares LiNixMn1‑xO2The method of binary positive material |
| CN107706414A (en) * | 2017-11-13 | 2018-02-16 | 桑顿新能源科技有限公司 | A kind of preparation technology of high power capacity, macrocyclic nickelic positive electrode |
| CN107910531A (en) * | 2017-11-20 | 2018-04-13 | 江西理工大学 | A kind of preparation method of high Ni-based tertiary cathode material |
| CN108502864A (en) * | 2018-04-02 | 2018-09-07 | 厦门大学 | A kind of olivine structural LiMPO4The preparation method of positive electrode |
| CN112777649A (en) * | 2021-01-15 | 2021-05-11 | 昆明理工大学 | Nickel-cobalt-manganese ternary precursor and preparation method and application thereof |
| 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 |
| CN115041459A (en) * | 2022-06-15 | 2022-09-13 | 江西理工大学 | Method for cleaning residual alkali on surface of anode material of lithium ion battery |
| CN115571926A (en) * | 2022-09-30 | 2023-01-06 | 广东邦普循环科技有限公司 | Method for removing carbonate from lithium precipitation mother liquor |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617289B (en) * | 2015-01-15 | 2017-02-22 | 湘潭大学 | Preparation method of hollow spherical lithium-enriched cathode material for lithium-ion battery |
| CN104617289A (en) * | 2015-01-15 | 2015-05-13 | 湘潭大学 | Preparation method of hollow spherical lithium-enriched cathode material for lithium-ion battery |
| CN107546385B (en) * | 2017-09-11 | 2020-03-03 | 江西理工大学 | Preparation of LiNixMn1-xO2Method for preparing binary anode material |
| CN107546385A (en) * | 2017-09-11 | 2018-01-05 | 江西理工大学 | One kind prepares LiNixMn1‑xO2The method of binary positive material |
| CN107706414A (en) * | 2017-11-13 | 2018-02-16 | 桑顿新能源科技有限公司 | A kind of preparation technology of high power capacity, macrocyclic nickelic positive electrode |
| CN107910531A (en) * | 2017-11-20 | 2018-04-13 | 江西理工大学 | A kind of preparation method of high Ni-based tertiary cathode material |
| CN107910531B (en) * | 2017-11-20 | 2021-04-30 | 江西理工大学 | Preparation method of high-nickel-base ternary cathode material |
| CN108502864A (en) * | 2018-04-02 | 2018-09-07 | 厦门大学 | A kind of olivine structural LiMPO4The preparation method of positive electrode |
| CN112777649A (en) * | 2021-01-15 | 2021-05-11 | 昆明理工大学 | Nickel-cobalt-manganese ternary precursor and preparation method and application thereof |
| 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 |
| CN115041459A (en) * | 2022-06-15 | 2022-09-13 | 江西理工大学 | Method for cleaning residual alkali on surface of anode material of lithium ion battery |
| CN115571926A (en) * | 2022-09-30 | 2023-01-06 | 广东邦普循环科技有限公司 | Method for removing carbonate from lithium precipitation mother liquor |
| CN115571926B (en) * | 2022-09-30 | 2024-02-09 | 广东邦普循环科技有限公司 | Method for removing carbonate radical from lithium precipitation mother liquor |
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