CN108866626A - Ternary monocrystalline anode material for lithium-ion batteries and preparation method suitable for high voltage - Google Patents
Ternary monocrystalline anode material for lithium-ion batteries and preparation method suitable for high voltage Download PDFInfo
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- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/16—Oxides
- C30B29/22—Complex oxides
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B1/00—Single-crystal growth directly from the solid state
- C30B1/10—Single-crystal growth directly from the solid state by solid state reactions or multi-phase diffusion
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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
- H01M4/50—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
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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
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
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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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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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 discloses a kind of ternary monocrystalline anode material for lithium-ion batteries and preparation method suitable for high voltage, are formed using three-stage sintering, and positive electrode is individual particle pattern, and particle diameter distribution is 0.5-20 μm, chemical formula LiNixCoyMnzO2.The present invention is not doped and coats, only addition two it is simple in low temperature fractional sintering procedures, easily controllable and do not introduce impurity, production cost is low, easy to promote and utilize；And layer structure stability of the present invention in the case where promoting high voltage charge and discharge is simultaneously, effectively promotes the cycle performance and energy density of material.
Description
Technical field
The present invention relates to anode material for lithium-ion batteries preparation field, specially a kind of ternary monocrystalline suitable for high voltage
Anode material for lithium-ion batteries and preparation method thereof.
Background technique
Lithium ion battery is answered extensively due to having the characteristics that energy density is high, operating voltage is high and cycle performance is excellent
For mobile electronic devices such as laptop, mobile phone and digital cameras.With various electronic products tend to miniaturization, it is miniature
Change and multifunction, to the energy density of lithium ion battery, more stringent requirements are proposed.
The dosage for increasing positive electrode and the charge cutoff voltage for improving battery are two kinds of weights for promoting battery energy density
Want approach.Wherein, the charging voltage of battery is improved, battery can be significantly improved under conditions of not increasing active material in battery
Capacity, be in actual production process improve battery energy density one of most effective approach.However, improving the charging electricity of battery
Pressure can shorten the service life of battery.By taking the cobalt acid lithium of industrialization as an example, in order to promote the energy density of battery, many sections
The cycle performance that the problem of worker directly increases charging voltage, brings therewith is battery is ground to be deteriorated.By research discovery due to
The lithium ion deviate under high voltages is excessive, so that the layer assembling structure of cobalt acid lithium script collapses.Since the structure of positive electrode is collapsed
To collapse be irreversible, once deterioration of cell properties is by unrepairable.Currently, the high-energy density that exploitation is safer, more cheap
LiNixCoyMnzO2It is increasingly becoming the hot spot of anode material of lithium battery development.
However nickle cobalt lithium manganate tertiary cathode material also has self-defect, such as poor circulation, the low and high rate performance of first effect
It is undesirable etc..Wherein, poor circulation is primarily due under high voltage condition, and the impurity of positive electrode surface absorption can release gas
Body, so that the contact resistance between electrode and electrolyte increases.In addition, the crystal structure of lithium ion tertiary cathode material is more multiple
It is miscellaneous, the reaction of electrode and electrolyte is more exacerbated under high voltage condition, deteriorates cycle performance.Currently, insider mentions
The method for much preparing ternary monocrystalline lithium ion anode material out, preparation process is complex, mainly there is cladding and doping two
Kind of mode, influences of few concern oversintering modes to monocrystalline high-voltage lithium-battery cathode material performance, therefore we are to burning
Knot technique is optimized and is improved.
Summary of the invention
It is applicable in view of the deficiencies of the prior art, the present invention intends to provide a kind of one kind to solve the above problems
In the ternary monocrystalline anode material for lithium-ion batteries and preparation method thereof of high voltage, using the technique of three-stage sintering, do not introduce miscellaneous
Matter, the stability of reinforcing material stratiform structure, and the side reaction of lightening material and electrolyte.
To achieve the above object, the present invention provides following technical solutions：
Suitable for the ternary monocrystalline method for preparing anode material of lithium-ion battery of high voltage, include the following steps：
（1）The mixing salt solution of nickel, cobalt, manganese is pressed into x:y:The ratio of z is added to NaOH and NH4In the mixed-alkali solution of OH,
Adjustment pH value be 7-12, at a temperature of 20-90 DEG C stir 1-6h after form suspension, by the suspension filtration washing of formation,
Drying obtains the presoma Ni of tertiary cathode materialxCoyMnz（OH）2, the value range of x, y, z is in formula：0.2≤x≤0.9,
0.1≤y≤0.4,0.1≤z≤0.5；
（2）It is in molar ratio Li by the presoma of tertiary cathode material obtained：（Ni+Co+Mn）=1~1.3:1 ratio
Example and lithium salts mixing, lithium salts are one of lithium hydroxide, lithium carbonate or lithium nitrate, grind 2-9h, the low temperature at 300-600 DEG C
It is pre-sintered 2-8h；Then the middle section heat preservation sintering 2-8h at 600-800 DEG C；The high-temperature roasting 10-25h at 800-1200 DEG C again,
It is cooled to room temperature and comes out of the stove to get individual particle structure nickel-cobalt-manganese ternary anode material for lithium-ion batteries is arrived.
The further preferred scheme of the present invention is step（1）Used in mixed-alkali solution be NaOH and NH4OH's is mixed
Solution is closed, the pH value > 8 of alkaline solution, wherein the molar concentration of NaOH is 0.1-1.0mol L in mixed solution-1, NH4OH's
Molar concentration is 0.1-1.0mol L-1, the dosage of mixed-alkali solution metal element is the presoma chemistry of tertiary cathode material
Formula NixCoyMnz(OH)21-1.20 times of the molal quantity of calculating.
The present invention still more preferably scheme is step（1）Used in nickel, cobalt, manganese mixing salt solution solubility
Salting liquid is one of sulfate, nitrate, chlorate or a variety of mixtures, and total metal molar concentration is 0.2-2.5mol
L-1, the molar ratio of nickel cobalt manganese is configured by ternary anode material for lithium-ion batteries finished chemical formula in metal salt solution.
The present invention also provides a kind of ternary monocrystalline anode material for lithium-ion batteries suitable for high voltage, the tertiary cathodes
Lithium electric material three-stage sintering forms, and is individual particle pattern, and particle diameter distribution is 0.5-20 μm, chemical formula LiNixCoyMnzO2, formula
The value range of middle x, y, z is：0.2≤x≤0.9,0.1≤y≤0.4,0.1≤z≤0.5.
The beneficial effects of the invention are as follows：
（One）The method that the present invention uses three-stage sintering.Different from common direct sintering mode, three-stage sintering program：First segment
Heat preservation is to reduce its influence to crystal growth, second segment heat preservation is stable in order to be formed at low temperature to remove impurity
Crystal structure reduces Li+With Ni2+The degree of mixing at high temperature, the stability of reinforcing material stratiform structure, and can be certain
The side reaction of lightening material and electrolyte in degree；The sintering of third section high temperature section is the growth in order to accelerate crystal, reduces material
Specific surface area, inhibit and electrolyte side reaction, under the premise of not changing chemical property itself, promoted high voltage charge and discharge
Structural stability under electricity effectively promotes the cycle performance of material.
（Two）Preparation method of the present invention is not doped and coats, and only adds two low temperature sintering programs, is easy to control
System, production cost is low, easy to promote and utilize.Conventional lithium ion electricity can be widely applied to using the product that the method for the present invention is prepared
The new energy devices such as pond, supercapacitor, have a extensive future.
Detailed description of the invention
Fig. 1 is the SEM figure for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that example 1 obtains.
Fig. 2 is the SEM figure for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that comparative example 1 obtains.
Fig. 3 is the XRD diagram for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that example 1 obtains.
Fig. 4 is the XRD diagram for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that comparative example 1 obtains.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Example 1：
By the nickel sulfate hexahydrate containing 131.37 g of Ni element, cobalt sulfate, the element containing Mn of 51.20 g of element containing Co
The manganese sulfate monohydrate of 50.70 g is dissolved in 1 L pure water, stirring and dissolving, is configured to total 1.0 mol L of metal molar concentration-1Three
First metal salt solution, the molar ratio of nickel cobalt manganese is Ni in the solution：Co：Mn=5:2:3.
50 DEG C are heated the solution to, is added in 1.7 L alkaline solutions, is reacted under agitation.The alkali
Property solution NH4OH content is 0.6mol L-1, NaOH content is 0.8mol L-1.Adjusting pH value is 11, is continued after charging
1 h is stirred, is filtered after standing 2 h, is obtained solid content, with pure water material, be subsequently placed in 120 DEG C of 5 h of drying of baking oven, obtain three
The presoma of first positive electrode.
By 100 g ternary precursors and 50.40 g Li2CO3It is sufficiently mixed, in 600 DEG C of pretreatment 3h, is warming up to 700 DEG C
Then lower roasting 2h is warming up at 1000 DEG C again and roasts 10h, comes out of the stove, is cooled to room temperature, smash it through 300 meshes and sieve, under sieve
Object is the individual particle structure tertiary cathode material that three-stage process sinters into.
Example 2：
By the nickel sulfate hexahydrate containing 151.07 g of Ni element, cobalt sulfate, the element containing Mn of 58.88 g of element containing Co
The manganese sulfate monohydrate of 58.31 g is dissolved in 1.15 L pure water, stirring and dissolving, is configured to total 1.0 mol L of metal molar concentration-1's
Ternary metal salting liquid, the molar ratio of nickel cobalt manganese is Ni in the solution：Co：Mn=5:2:3.
50 DEG C are heated the solution to, is added in 2 L alkaline solutions, is reacted under agitation.The alkalinity
Solution NH4OH content is 0.7mol L-1, NaOH content is 0.7mol L-1.Adjusting pH value is 11, continues to stir after charging
2 h are mixed, is filtered after standing 2 h, is obtained solid content, with pure water material, be subsequently placed in 120 DEG C of 5 h of drying of baking oven, obtain ternary
The presoma of positive electrode.
By 100 g ternary precursors and 46.68 g Li2CO3It is sufficiently mixed, in 500 DEG C of pretreatment 3h, is warming up to 600
2h is roasted at DEG C, is then warming up at 920 DEG C again and roasts 10h, come out of the stove, be cooled to room temperature, and smashes it through the screening of 300 meshes, sieve
Lower object is the individual particle structure tertiary cathode material that three-stage process sinters into.
Example 3：
By the nickel sulfate hexahydrate containing 656.85 g of Ni element, the cobalt sulfate of 256 g of element containing Co, element containing Mn 253.5
The manganese sulfate monohydrate of g is dissolved in 5 L pure water, stirring and dissolving, is configured to total 1.0 mol L of metal molar concentration-1Ternary metal
Salting liquid, the molar ratio of nickel cobalt manganese is Ni in the solution：Co：Mn=5:2:3.
50 DEG C are heated the solution to, is added in 10 L alkaline solutions, is reacted under agitation.The alkali
Property solution NH4OH content is 0.7mol L-1, NaOH content is 0.6mol L-1.Adjust pH value be 11.5, after charging after
1 h of continuous stirring, filters after standing 2 h, obtains solid content, with pure water material, be subsequently placed in 120 DEG C of 5 h of drying of baking oven, obtain
The presoma of tertiary cathode material.
By 100 g ternary precursors and 45.56 g Li2CO3It is sufficiently mixed, in 400 DEG C of pretreatment 3h, is warming up to
2h is roasted at 800 DEG C, is then warming up at 960 DEG C again and roasts 10h, come out of the stove, be cooled to room temperature, and smashes it through the screening of 300 meshes,
Screenings is the individual particle structure tertiary cathode material that three-stage process sinters into.
Example 4：
By the nickel sulfate hexahydrate containing 262.74 g of Ni element, cobalt sulfate, the element containing Mn of 102.4 g of element containing Co
The manganese sulfate monohydrate of 101.4 g is dissolved in 2 L pure water, stirring and dissolving, is configured to total 1.0 mol L of metal molar concentration-1Three
First metal salt solution, the molar ratio of nickel cobalt manganese is Ni in the solution：Co：Mn=5:2:3.
50 DEG C are heated the solution to, is added in 4 L alkaline solutions, is reacted under agitation.The alkalinity
Solution NH4OH content is 0.6mol L-1, NaOH content is 0.6mol L-1.Adjusting pH value is 11, continues to stir after charging
1 h is mixed, is filtered after standing 2 h, is obtained solid content, with pure water material, be subsequently placed in 120 DEG C of 5 h of drying of baking oven, obtain ternary
The presoma of positive electrode.
By 100 ternary precursors and 43.54 g Li2CO3It is sufficiently mixed, in 500 DEG C of pretreatment 3h, is warming up to 800
2h is roasted at DEG C, is then warming up at 940 DEG C again and roasts 10h, come out of the stove, be cooled to room temperature, and smashes it through the screening of 300 meshes, sieve
Lower object is the individual particle structure tertiary cathode material that three-stage process sinters into.
Example 5：
By the nickel sulfate hexahydrate containing 1.31 kg of Ni element, the cobalt sulfate of 0.51 kg of element containing Co, element containing Mn 0.51
The manganese sulfate monohydrate of kg is dissolved in 10 L pure water, stirring and dissolving, is configured to total 1.0 mol L of metal molar concentration-1Ternary gold
Belong to salting liquid, the molar ratio of nickel cobalt manganese is Ni in the solution：Co：Mn=5:2:3.
50 DEG C are heated the solution to, is added in 15 L alkaline solutions, is reacted under agitation.The alkalinity
Solution NH4OH content is 0.7mol L-1, NaOH content is 0.8mol L-1.Adjusting pH value is 11, continues to stir after charging
1 h is mixed, is filtered after standing 2 h, is obtained solid content, with pure water material, be subsequently placed in 120 DEG C of 5 h of drying of baking oven, obtain ternary
The presoma of positive electrode.
By 100 g ternary precursors and 41.93 g Li2CO3It is sufficiently mixed, in 400 DEG C of pretreatment 3h, is warming up to
2h is roasted at 600 DEG C, is then warming up at 980 DEG C again and roasts 10h, come out of the stove, be cooled to room temperature, and smashes it through the screening of 300 meshes,
Screenings is the individual particle structure tertiary cathode material that three-stage process sinters into.
Comparative example 1：
It in comparative example 1, according to the preparation process of example 1, keeps other parameters constant, changes sintering procedure, it is direct from room temperature
It is warming up at 1000 DEG C and roasts 10 h, that obtain is not the intact individual particle structure tertiary cathode material of crystallinity, such as Fig. 2
Shown in.
Individual particle structure tertiary cathode material prepared by example 1 to example 5, size distribution is 0.5-20 μm, such as Fig. 1
Shown in middle 1 material of example.Fig. 3 is the XRD diagram for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that example 1 obtains.Fig. 4 is comparison
The XRD diagram for the nickel-cobalt-manganese ternary anode material for lithium-ion batteries that example 1 obtains.
After to 5 gained of example pole piece is respectively prepared in material by comparative example 1 and example 1, pass through battery performance test instrument
Test, in the case where the charge and discharge of 3.0-4.6 V limit voltage, chemical property 1.0C specific discharge capacity, 50 weeks circulation electric discharge ratios
Capacity is shown in Table 1, and present example 1 to 5 performance of example is obviously improved.
Table 1
| Specific discharge capacity/mAh g-1（1st） | Specific discharge capacity/mAh g-1（50st） | |
| Example 1 | 159.3 | 157.4 |
| Example 2 | 158.5 | 156.1 |
| Example 3 | 159.0 | 156.9 |
| Example 4 | 155.5 | 153.4 |
| Example 5 | 156.2 | 154.8 |
| Comparative example 1 | 122.4 | 114.7 |
Claims (4)
1. being suitable for the ternary monocrystalline method for preparing anode material of lithium-ion battery of high voltage, which is characterized in that including following step
Suddenly：
（1）The mixing salt solution of nickel, cobalt, manganese is pressed into x:y:The ratio of z is added to NaOH and NH4In the mixed-alkali solution of OH, adjust
Whole pH value is 7-12, forms suspension after stirring 1-6h at a temperature of 20-90 DEG C, by the suspension filtration washing of formation, is dried
The dry presoma Ni for obtaining tertiary cathode materialxCoyMnz（OH）2, the value range of x, y, z is in formula：0.2≤x≤0.9,0.1
≤ y≤0.4,0.1≤z≤0.5；
（2）It is in molar ratio Li by the presoma of tertiary cathode material obtained：（Ni+Co+Mn）=1~1.3:1 ratio
Example and lithium salts mixing, lithium salts are one of lithium hydroxide, lithium carbonate or lithium nitrate, grind 2-9h, the low temperature at 300-600 DEG C
It is pre-sintered 2-8h；Then the middle section heat preservation sintering 2-8h at 600-800 DEG C；The high-temperature roasting 10-25h at 800-1200 DEG C again,
It is cooled to room temperature and comes out of the stove to get individual particle structure nickel-cobalt-manganese ternary anode material for lithium-ion batteries is arrived.
2. the ternary monocrystalline method for preparing anode material of lithium-ion battery according to claim 2 suitable for high voltage,
It is characterized in that：Step（1）Used in mixed-alkali solution be NaOH and NH4The mixed solution of OH, the pH value of alkaline solution
> 8, wherein the molar concentration of NaOH is 0.1-1.0mol L in mixed solution-1, NH4The molar concentration of OH is 0.1-1.0mol
L-1, the dosage of mixed-alkali solution metal element is the presoma chemical formula Ni of tertiary cathode materialxCoyMnz(OH)2It calculates
1-1.20 times of molal quantity.
3. the ternary monocrystalline method for preparing anode material of lithium-ion battery according to claim 2 suitable for high voltage,
It is characterized in that：Step（1）Used in nickel, cobalt, manganese mixing salt solution soluble salt solutions be sulfate, nitrate, chlorine
One of salt dissolving or a variety of mixtures, total metal molar concentration are 0.2-2.5mol L-1, nickel cobalt manganese in metal salt solution
Molar ratio is configured by ternary anode material for lithium-ion batteries finished chemical formula.
4. according to claim 1 just to the ternary monocrystalline lithium ion battery suitable for high voltage of 3 any preparation methods acquisitions
Pole material, it is characterised in that：The tertiary cathode lithium electric material three-stage sintering forms, and is individual particle pattern, and particle diameter distribution is
0.5-20 μm, chemical formula LiNixCoyMnzO2, the value range of x, y, z is in formula：0.2≤x≤0.9,0.1≤y≤0.4,
0.1≤z≤0.5。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638248A (en) * | 2018-12-10 | 2019-04-16 | 北方奥钛纳米技术有限公司 | A kind of preparation method of porous triple material, porous triple material and half-cell |
| CN111099664A (en) * | 2019-12-24 | 2020-05-05 | 江苏强劲新能源科技有限公司 | Preparation method of 523 type positive electrode material |
| CN111952581A (en) * | 2020-08-25 | 2020-11-17 | 湖北融通高科先进材料有限公司 | NCM613 single crystal type anode material and preparation method thereof |
| CN111945224A (en) * | 2020-08-17 | 2020-11-17 | 湖北融通高科先进材料有限公司 | Preparation method of long-circulation type 523 single-crystal ternary material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120040247A1 (en) * | 2010-07-16 | 2012-02-16 | Colorado State University Research Foundation | LAYERED COMPOSITE MATERIALS HAVING THE COMPOSITION: (1-x-y)LiNiO2(xLi2Mn03)(yLiCoO2), AND SURFACE COATINGS THEREFOR |
| CN103490051A (en) * | 2013-09-18 | 2014-01-01 | 成都晶元新材料技术有限公司 | Multi-element anode lithium battery material suitable for high voltage and preparation method for material |
| CN103840151A (en) * | 2013-12-13 | 2014-06-04 | 山东海特电子新材料有限公司 | Ternary positive electrode material with special single-crystal structure, and preparation method thereof |
| CN105692703A (en) * | 2014-11-24 | 2016-06-22 | 北京理工大学 | Lithium-enriched manganese-based cathode material, preparation method thereof, and lithium ion battery |
-
2018
- 2018-06-08 CN CN201810585731.5A patent/CN108866626A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120040247A1 (en) * | 2010-07-16 | 2012-02-16 | Colorado State University Research Foundation | LAYERED COMPOSITE MATERIALS HAVING THE COMPOSITION: (1-x-y)LiNiO2(xLi2Mn03)(yLiCoO2), AND SURFACE COATINGS THEREFOR |
| CN103490051A (en) * | 2013-09-18 | 2014-01-01 | 成都晶元新材料技术有限公司 | Multi-element anode lithium battery material suitable for high voltage and preparation method for material |
| CN103840151A (en) * | 2013-12-13 | 2014-06-04 | 山东海特电子新材料有限公司 | Ternary positive electrode material with special single-crystal structure, and preparation method thereof |
| CN105692703A (en) * | 2014-11-24 | 2016-06-22 | 北京理工大学 | Lithium-enriched manganese-based cathode material, preparation method thereof, and lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| 岳鹏: "锂离子电池镍基LiNi_(1-2x)Co_xMn_xO_2正极材料的合成及改性研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109638248A (en) * | 2018-12-10 | 2019-04-16 | 北方奥钛纳米技术有限公司 | A kind of preparation method of porous triple material, porous triple material and half-cell |
| CN109638248B (en) * | 2018-12-10 | 2022-10-21 | 北方奥钛纳米技术有限公司 | Preparation method of porous ternary material, porous ternary material and half cell |
| CN111099664A (en) * | 2019-12-24 | 2020-05-05 | 江苏强劲新能源科技有限公司 | Preparation method of 523 type positive electrode material |
| CN111945224A (en) * | 2020-08-17 | 2020-11-17 | 湖北融通高科先进材料有限公司 | Preparation method of long-circulation type 523 single-crystal ternary material |
| CN111945224B (en) * | 2020-08-17 | 2022-06-10 | 湖北融通高科先进材料有限公司 | Preparation method of long-circulation type 523 single-crystal ternary material |
| CN111952581A (en) * | 2020-08-25 | 2020-11-17 | 湖北融通高科先进材料有限公司 | NCM613 single crystal type anode material and preparation method thereof |
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