CN104134796A - Modification method of ternary anode material of lithium ion battery - Google Patents
Modification method of ternary anode material of lithium ion battery Download PDFInfo
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- CN104134796A CN104134796A CN201410364762.XA CN201410364762A CN104134796A CN 104134796 A CN104134796 A CN 104134796A CN 201410364762 A CN201410364762 A CN 201410364762A CN 104134796 A CN104134796 A CN 104134796A
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- lini
- lithium ion
- ion battery
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- positive electrode
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 22
- 239000010405 anode material Substances 0.000 title abstract description 7
- 238000002715 modification method Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- 229910013716 LiNi Inorganic materials 0.000 claims description 26
- 239000008367 deionised water Substances 0.000 claims description 17
- 229910021641 deionized water Inorganic materials 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 9
- 239000010406 cathode material Substances 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 8
- 229910001456 vanadium ion Inorganic materials 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 229910014336 LiNi1-x-yCoxMnyO2 Inorganic materials 0.000 abstract 2
- 229910014446 LiNi1−x-yCoxMnyO2 Inorganic materials 0.000 abstract 2
- 229910014825 LiNi1−x−yCoxMnyO2 Inorganic materials 0.000 abstract 2
- 229910000540 VOPO4 Inorganic materials 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 229910002991 LiNi0.5Co0.2Mn0.3O2 Inorganic materials 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 206010058490 Hyperoxia Diseases 0.000 description 1
- 229910012820 LiCoO Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910011328 LiNi0.6Co0.2Mn0.2O2 Inorganic materials 0.000 description 1
- 229910015872 LiNi0.8Co0.1Mn0.1O2 Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 230000000222 hyperoxic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229910001512 metal fluoride Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
- 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
- H01M4/48—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
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a modification method of a ternary anode material, namely an LiNi1-x-yCoxMnyO2 anode material of a lithium ion battery. The modification method comprises the steps of weighing a material, stirring the material to form a solution, adding a modified material, performing sintering, performing cooling and performing screening to obtain the VOPO4 cladded LiNi1-x-yCoxMnyO2 anode material. The modification method is simple in preparation method, short in flow and excellent in material processing performance and electrochemical performance.
Description
Technical field
The invention belongs to anode material for lithium-ion batteries field, be specifically related to lithium ion battery LiNi
1-x-yco
xmn
yo
2the method of modifying of positive electrode.
Background technology
High-energy-density, long circulation life and high security are the consistent targets that current lithium ion battery is pursued, and the quality of anode material for lithium-ion batteries performance affects the quality of whole battery performance to a great extent, and therefore the research and development of positive electrode seem most important.
At present, commercial positive electrode is still with LiCoO
2be main, but the rare of cobalt resource causes it expensive, and the unfavorable factor such as poisonous, poor heat stability limited it and further applied, and LiNi
1-x-yco
xmn
yo
2material has had LiCoO concurrently
2, LiNiO
2, LiMnO
2three's characteristic, compares LiCoO
2there is the advantages such as high-energy-density, low cost, fail safe preferably, be considered to the ideal chose of anode material for lithium-ion batteries.Therefore, LiNi
1-x-yco
xmn
yo
2positive electrode has caused researcher's great attention.
But, LiNi
1-x-yco
xmn
yo
2material under high potential, hyperoxia voltinism and highly active Ni
4+can decompose by catalytic electrolysis liquid, cause cycle performance variation; And under high temperature, material directly contacts with electrolyte, can react with the HF of trace in electrolyte, destroy interfacial structure, and then cause Ni, Co and Mn to dissolve in electrolyte, cause capacity attenuation; Meanwhile, material surface has a large amount of lithium residues, in the time that material is exposed in air, and meeting and airborne H
2o/CO
2reaction forms LiOH/Li
2cO
3, and enter in battery with a large amount of moisture, not only affect drawing abillity, and the chemical property of severe exacerbation battery.These problems have seriously restricted LiNi
1-x-yco
xmn
yo
2the application of material.
Surface is coated is a kind of effective way of material being carried out to modification.Adopt metal oxide, fluoride, phosphate and carbon etc. to carry out surface and be coated, isolated material contacts with the direct of electrolyte, suppresses HF in electrolyte the corrosion of material is reached to modification object.But these conventional coated materials do not have lithium ion passage, can hinder to a certain extent lithium ion transmission, and then affect the high rate performance of material.VOPO
4be a kind of compound of layer structure, there is the superior lithium inserted characteristic, allow between layers the transmission of lithium ion.And VOPO
4stability Analysis of Structures in electrolyte, can effectively improve LiNi
1-x-yco
xmn
yo
2the chemical property of material.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art, utilize VOPO
4the superior lithium inserted characteristic, provides a kind of lithium ion battery LiNi
1-x-yco
xmn
yo
2the method of modifying of positive electrode, effectively to improve air memory property, high-temperature storage performance and the cycle performance of positive electrode.
To achieve these goals, technical scheme of the present invention is, a kind of ternary cathode material of lithium ion battery, i.e. LiNi
1-x-yco
xmn
yo
2the method of modifying of positive electrode, comprises the following steps:
Step 1, the NH that is 2:1:2 according to mol ratio
4h
2pO
4, V
2o
5and C
6h
8o
7h
2o takes material, will take material and add in deionized water, and controlling vanadium ion concentration is 0.01～1 molL
-1, adding ammoniacal liquor to regulate pH value is 3～8, is heated to 40～100 DEG C of stirrings, forms solution;
Step 2, according to VOPO
4with LiNi
1-x-yco
xmn
yo
2the mass ratio of positive electrode is that 0.001～0.10 ratio takes LiNi
1-x-yco
xmn
yo
2, by the LiNi taking
1-x-yco
xmn
yo
2put in the solution that step 1 makes, add deionized water dilution, add LiNi
1-x-yco
xmn
yo
2the mass ratio of positive electrode and deionized water is 1:1～10, stirs, and sprays dry; It is 100～200 DEG C that spraying is dried into air temperature, and leaving air temp is 100～150 DEG C;
Step 3, is sintering 2～10h under oxygen by the powder of spraying gained in sintering atmosphere, 600～900 DEG C of sintering temperatures, and cooling with stove, screening, obtains VOPO
4coated LiNi
1-x-yco
xmn
yo
2positive electrode.
In described step 1, vanadium ion concentration is 0.02～0.5 mol L
-1.
In described step 1, heating-up temperature is 60～80 DEG C, and regulating pH value scope is 5～7.
In described step 2, add LiNi
1-x-yco
xmn
yo
2the quality of positive electrode and deionized water quality are than being 1:0.5～2.
In described step 2, it is 120～170 DEG C that spraying is dried into air temperature, and leaving air temp is 100～110 DEG C.
In described step 3, sintering temperature is 650～850 DEG C, and sintering time is 3～5h.
The beneficial effect that the present invention has: adopt spray-dired method to LiNi
1-x-yco
xmn
yo
2positive electrode coated with uniform one deck VOPO
4.Surface coated VOPO
4layer all has good stability in electrolyte and air, well the H in air-isolation
2o/CO
2and electrolyte, thereby improve LiNi
1-x-yco
xmn
yo
2air memory property, high-temperature storage performance and the cycle performance of material.A kind of LiNi that the present invention proposes
1-x-yco
xmn
yo
2the method of modifying of material, preparation method is simple, and flow process is short, and materials processing performance and chemical property excellence.
Brief description of the drawings
Fig. 1 is the XRD figure of sample in embodiment 1;
Fig. 2 is the TEM figure of sample in embodiment 1
Fig. 3 is the 2C cycle performance of sample in the time of 60 DEG C in embodiment 1;
Fig. 4 is that in embodiment 2, sample charges to the 2C cycle performance of 4.3V after 90 DEG C of storage 5h;
Fig. 5 is the 2C cycle performance of sample in the time of room temperature in embodiment 3.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
Embodiment 1: the NH that is 2:1:2 by mol ratio
4h
2pO
4, V
2o
5and C
6h
8o
7h
2o is placed in deionized water, and the concentration of controlling vanadium ion is 0.1 mol L
-1, add ammoniacal liquor to regulate pH=6, at 80 DEG C, stir, form solution; VOPO
4covering amount is the required LiNi of 1% calculating
0.5co
0.2mn
0.3o
2quality, be placed in solution, add appropriate amount of deionized water dilution; Wherein deionized water quality and LiNi
0.5co
0.2mn
0.3o
2mass ratio is 1:1; After stirring, spraying is dry, and controlling into air temperature is 150 DEG C, 100 DEG C of leaving air temps, and the 850 DEG C of calcinings 180 minutes in oxygen of gained powder, cooling with stove, screening, obtains VOPO
4covering amount is 1% lithium ion battery LiNi
0.5co
0.2mn
0.3o
2positive electrode.As can be seen from Figure 1, in the XRD of coated sample spectrum, there is not dephasign peak.As can be seen from Figure 2, there is the uniform coating layer of one deck at sample surfaces.Sample is made to button cell test chemical property, and as can be seen from Figure 3, the high temperature cyclic performance of coated sample gets a promotion, and this is also enhanced relevant with the structural stability of clad material.
Embodiment 2: the NH that is 2:1:2 by mol ratio
4h
2pO
4, V
2o
5and C
6h
8o
7h
2o is placed in deionized water, and the concentration of controlling vanadium ion is 0.3 mol L
-1, add ammoniacal liquor to regulate pH=5, at 70 DEG C, stir, form solution; With VOPO
4covering amount is the required LiNi of 3% calculating
0.8co
0.1mn
0.1o
2quality, be placed in solution, add deionized water dilution, wherein deionized water quality and LiNi
0.5co
0.2mn
0.3o
2mass ratio is 2:1; After stirring, spraying is dry, and controlling into air temperature is 120 DEG C, 100 DEG C of leaving air temps, and the 700 DEG C of calcinings 300 minutes in oxygen of gained powder, cooling with stove, screening, obtains VOPO
4covering amount is 3% lithium ion battery LiNi
0.8co
0.1mn
0.1o
2positive electrode.Sample is made to button cell and charged to 4.3V with 0.1C be placed in 90 DEG C of insulating boxs and be incubated 5 hours, then carry out 2C loop test.As can be seen from Figure 4, the high-temperature storage performance of clad material is better than not clad material.For comparative material memory property in air, bi-material is placed in to air and leaves standstill 7 days and 30 days, measure its Surface L i
2cO
3with LiOH content.As can be seen from Table 1, the Li of coated sample
2cO
3be starkly lower than not coated sample with LiOH content, its air memory property is good.
In table 1 embodiment 2, in sample air, store Li after 7 days and 30 days
2cO
3with LiOH content
Embodiment 3: the NH that is 2:1:2 by mol ratio
4h
2pO
4, V
2o
5and C
6h
8o
7h
2o is placed in deionized water, and the concentration of controlling vanadium ion is 0.05 mol L
-1, add ammoniacal liquor to regulate pH=7, at 60 DEG C, stir, form solution; With VOPO
4covering amount is the required LiNi of 0.5% calculating
0.6co
0.2mn
0.2o
2quality, be placed in solution, add deionized water dilution, wherein deionized water quality and LiNi
0.5co
0.2mn
0.3o
2mass ratio is 0.5:1; After stirring, spraying is dry, and controlling into air temperature is 150 DEG C, 110 DEG C of leaving air temps, and the 800 DEG C of calcinings 240 minutes in oxygen of gained powder, cooling with stove, screening, obtains VOPO
4covering amount is 0.5% lithium ion battery LiNi
0.6co
0.2mn
0.2o
2positive electrode.Sample is made to button cell test chemical property, and as can be seen from Figure 5, the cycle performance of coated sample is better than not being coated sample.
Above embodiments of the invention are explained in detail, above-mentioned execution mode is only optimum embodiment of the present invention, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from aim of the present invention, make various variations.
Claims (6)
1. a method of modifying for ternary cathode material of lithium ion battery, is characterized in that comprising the following steps:
Step 1, the NH that is 2:1:2 according to mol ratio
4h
2pO
4, V
2o
5and C
6h
8o
7h
2o takes material, will take material and add in deionized water, and controlling vanadium ion concentration is 0.01～1 molL
-1, adding ammoniacal liquor to regulate pH value is 3～8, is heated to 40～100 DEG C of stirrings, forms solution;
Step 2, according to VOPO
4with LiNi
1-x-yco
xmn
yo
2the mass ratio of positive electrode is that 0.001～0.10 ratio takes LiNi
1-x-yco
xmn
yo
2, by the LiNi taking
1-x-yco
xmn
yo
2put in the solution that step 1 makes, add deionized water dilution, add LiNi
1-x-yco
xmn
yo
2the mass ratio of positive electrode and deionized water is 1:1～10, stirs, and sprays dry; It is 100～200 DEG C that spraying is dried into air temperature, and leaving air temp is 100～150 DEG C;
Step 3, is sintering 2～10h under oxygen by the powder of spraying gained in sintering atmosphere, 600～900 DEG C of sintering temperatures, and cooling with stove, screening, obtains VOPO
4coated LiNi
1-x-yco
xmn
yo
2positive electrode.
2. the method for modifying of a kind of ternary cathode material of lithium ion battery as claimed in claim 1, is characterized in that in step 1, vanadium ion concentration is 0.02～0.5 mol L
-1.
3. the method for modifying of a kind of ternary cathode material of lithium ion battery as claimed in claim 1, is characterized in that in step 1, heating-up temperature is 60～80 DEG C, and regulating pH value scope is 5～7.
4. the method for modifying of a kind of ternary cathode material of lithium ion battery as claimed in claim 1, is characterized in that adding in step 2 LiNi
1-x-yco
xmn
yo
2the quality of positive electrode and deionized water quality are than being 1:0.5～2.
5. the method for modifying of a kind of ternary cathode material of lithium ion battery as claimed in claim 1, is characterized in that in step 2 that it is 120～170 DEG C that spraying is dried into air temperature, and leaving air temp is 100～110 DEG C.
6. the method for modifying of a kind of ternary cathode material of lithium ion battery as claimed in claim 1, is characterized in that in step 3, sintering temperature is 650～850 DEG C, and sintering time is 3～5h.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848183A (en) * | 2017-02-24 | 2017-06-13 | 中国科学院新疆理化技术研究所 | A kind of method for improving ternary cathode material of lithium ion battery high rate performance |
| WO2024113626A1 (en) * | 2022-11-30 | 2024-06-06 | 格林美（无锡）能源材料有限公司 | High-nickel ternary positive electrode material using lithium fast-ion conductor as coating layer, preparation method therefor, and application thereof |
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| CN101295788A (en) * | 2007-04-27 | 2008-10-29 | Tdk株式会社 | Active material, electrode, battery, and method of manufacturing active material |
| CN102569808A (en) * | 2011-11-25 | 2012-07-11 | 北京工业大学 | Modification method of high-rate lithium-rich cathode material |
| CN102780002A (en) * | 2012-07-28 | 2012-11-14 | 湘西自治州金鸿矿业有限责任公司 | Preparation method of ternary positive electrode material of lithium-manganese dioxide battery |
-
2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295788A (en) * | 2007-04-27 | 2008-10-29 | Tdk株式会社 | Active material, electrode, battery, and method of manufacturing active material |
| CN102569808A (en) * | 2011-11-25 | 2012-07-11 | 北京工业大学 | Modification method of high-rate lithium-rich cathode material |
| CN102780002A (en) * | 2012-07-28 | 2012-11-14 | 湘西自治州金鸿矿业有限责任公司 | Preparation method of ternary positive electrode material of lithium-manganese dioxide battery |
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| CN106848183A (en) * | 2017-02-24 | 2017-06-13 | 中国科学院新疆理化技术研究所 | A kind of method for improving ternary cathode material of lithium ion battery high rate performance |
| WO2024113626A1 (en) * | 2022-11-30 | 2024-06-06 | 格林美（无锡）能源材料有限公司 | High-nickel ternary positive electrode material using lithium fast-ion conductor as coating layer, preparation method therefor, and application thereof |
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