CN105118981A - High-capacity nickel-cobalt-lithium manganate precursor and preparation method thereof - Google Patents

High-capacity nickel-cobalt-lithium manganate precursor and preparation method thereof Download PDF

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CN105118981A
CN105118981A CN201510216749.4A CN201510216749A CN105118981A CN 105118981 A CN105118981 A CN 105118981A CN 201510216749 A CN201510216749 A CN 201510216749A CN 105118981 A CN105118981 A CN 105118981A
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cobalt
nickel
manganese
lithium
preparation
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郑江峰
晁锋刚
赵文
魏宁
张晨
文荣
贾效旭
沈立芳
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Ningxia Orient Tantalum Industry Co Ltd
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Ningxia Orient Tantalum Industry Co Ltd
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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
    • 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
    • H01M4/52—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

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  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention relates to a positive electrode material of a lithium ion battery, especially to a high-capacity nickel-cobalt-lithium manganate precursor and a preparation method thereof. The high-capacity nickel-cobalt-lithium manganate precursor is characterized by having a chemical formula of NixCoyMnz(OH)2, wherein x is no less than 0.5 and no more than 0.9, y is no less than 0.05 and no more than 0.2, z is no less than 0.05 and no more than 0.3, and x+y+z is equal to 1. The invention provides the high-capacity nickel-cobalt-lithium manganate precursor prepared through coprecipitation and the preparation method thereof; and the prepared precursor has concentratedly distributed particle size, high tap density, good sphericility, high specific capacity, low cost, long service life, higher discharge plateau and energy density, primary 1C charge-discharge specific capacity of 195 mA.h/g and 186.5 mA.h/g, and capacity retention ratio of 95.6% after 50 cycles.

Description

A kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide and preparation method thereof
Technical field
The present invention relates to anode material for lithium-ion batteries, especially a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide and preparation method thereof.
Background technology
From over 2012, the portable consumer electronics such as smart mobile phone, panel computer, portable power source are a dark horse, electric bicycle, electric automobile etc. also progressively become consumption main flow by the support of national industrial policies, in addition, the energy storage device of the lithium ion battery energy be as an alternative directly used in Aero-Space, artificial satellite, small medical and and military communication apparatus field in.In the emerging market of lithium ion battery, nickel-cobalt lithium manganate cathode material has become lithium ion battery market comsupton main flow, and application has exceeded cobalt acid lithium, LiFePO4, LiMn2O4.In nickel-cobalt lithium manganate cathode material major consumers field, high power capacity, good cycle, fail safe is high, and lower cost materials becomes the magic weapon that businessman dominates market profit maximization.
Ni in nickel-cobalt lithium manganate cathode material xco ymn z(OH) 2, wherein (0.5≤x≤0.9,0.05≤y≤0.2,0.05≤z≤0.3, x+y+z=1) positive electrode stable electrochemical property, good cycle, fail safe is good, specific capacity is high, cost is low, and the life-span is long, combines positive pole material of lithium cobalt acid, LiFePO4, LiMn2O4 plurality of advantages, being thought optimal lithium electric material presoma by lithium electricity expert, is the contenders of New Times lithium ion battery power vehicle energy resource system positive electrode.
The synthesis such as traditional sol-gel process, spray-on process, high temperature solid-state method Ni xco ymn z(OH) 2wherein (0.5≤x≤0.9,0.05≤y≤0.2,0.05≤z≤0.3, x+y+z=1), due to process conditions restriction in preparation process, equipment requirement is all harsher, industrialization is more difficult, and what employing was more at present is crystallization control hydroxide precipitation method and coprecipitation, but the nucleus sphericity of synthesis is poor, easily break, tap density is low, and cycle performance is poor to cause material to occur, poor stability, easy self discharge, specific capacity is little, and the problem such as security performance is low under high voltages, makes this high-capacity material can not better be applied.
Summary of the invention
The object of this invention is to provide a kind of preparation method of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, can 3-18 μm be prepared, centralized particle diameter, tap density are high, granular precursor that good sphericity, specific capacity are high;
Two of object of the present invention is to provide a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide adopting said method to prepare, and can obtain capacity higher, cost is lower, the cell positive material of good cycle.
A kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, its special feature is: chemical formula is Ni xco ymn z(OH) 2, wherein 0.5≤x≤0.9,0.05≤y≤0.2,0.05≤z≤0.3, x+y+z=1.
Nickel is selected according to the proportioning of the chemical formula of above-mentioned record, cobalt, the soluble-salt of manganese is raw material, metal mixed salting liquid is made into again with pure water, by pure water and complexing agent, alkali lye mixture becomes reaction end liquid to add in reactor, then by metal mixed salting liquid, complexing agent, alkali lye three is respectively according to mol ratio 1.1:1:2.3 measuring pump and stream adds hybrid reaction in reactor, reaction system adopts high and low rotating speed control by stages, when after reaction feed 12-15h, ageing 1-2h, then filtering makes Separation of Solid and Liquid wash again, specifically first use pure water, again with the 0.1mol/L alkali liquid washing prepared, reusable heat pure water, after finally drying.
Wherein the soluble-salt of nickel, cobalt, manganese specifically adopts sulfate, chlorate or nitrate.
Wherein the total concentration of metal mixed salting liquid is 0.5-3.0mol/L, and temperature controls at 20-50 DEG C; Its complexing agent is at least one in ammoniacal liquor, ammonium sulfate, ammonium chloride and ammonium oxalate, and controlled concentration is 6-10mol/L; Wherein alkali lye is at least one in sodium hydroxide solution, potassium hydroxide solution and aqua calcis, and to control concentration of lye be 5-10mol/L.
Wherein metal mixed salting liquid first filters through 200 eye mesh screens before use, then removes magnetisable material with except chinaware.
The volume ratio of wherein reacting pure water, complexing agent and alkali lye in end liquid is 80:1 ~ 2:1, and react that end liquid accounts for the effective total measurement (volume) of reactor 15%.
The 0.1mol/L alkali lye wherein washed prepares in proportion with the alkali lye of the pure water under normal temperature and reaction.
Wherein washing hot pure water temperature used after reaction aging is 50-80 DEG C.
Reaction system is in constant pH by the flow wherein by adding separately with measuring pump control metal mixed salting liquid, complexing agent, alkali lye, and this pH is 11.5-12.0.
Speed of agitator 200-400r/min is controlled, when nucleus growth is adjusted downward to 100-200r/min to rotating speed when 6 μm when wherein high and low rotating speed control by stages specifically refers to that reaction system starts to generate nucleus.
The invention provides high power capacity precursor of nickel-cobalt-lithium-manganese-oxide prepared by a kind of coprecipitation and preparation method thereof, the particle size distribution of preparation is concentrated, tap density is high, good sphericity, specific capacity is high, low cost, life-span is long, have higher discharge platform and energy density, 1C charging and discharging capacity reaches 195mAh/g and 186.5mAh/g first, and 50 capability retentions that circulate are 95.6%.
Accompanying drawing explanation
Accompanying drawing 1 is 9.5 μm of Ni prepared by the embodiment of the present invention 1 0.8co 0.1mn 0.1(OH) 2scanning electron microscope sem figure;
Accompanying drawing 2 is 9.5 μm of Ni prepared by the embodiment of the present invention 2 0.8co 0.15mn 0.05(OH) 2scanning electron microscope sem figure;
Accompanying drawing 3 is 9.5 μm of Ni prepared by the embodiment of the present invention 3 0.7co 0.15mn 0.15(OH) 2scanning electron microscope sem figure;
Accompanying drawing 4 is LiNi prepared by the embodiment of the present invention 1 0.8co 0.1mn 0.1o 2first charge-discharge curve chart under positive electrode 1C;
Accompanying drawing 5 is LiNi prepared by the embodiment of the present invention 1 0.8co 0.1mn 0.1o 2cyclic curve figure under positive electrode 1C.
Embodiment
The present invention is low in order to solve anode material for lithium-ion batteries specific capacity on existing market, high cost, cycle performance is poor, and when preparing presoma, nucleus easily breaks, the technical problems such as sphericity difference, provide a kind of high-capacity lithium ion cell presoma and preparation method thereof especially.
When presoma particle diameter prepared by the inventive method is 9-9.5 μm, D10=8.0-9.0, D50=9-9.5, D90=9.5-10.5, tap density is greater than 2.2g/cm 3, D10, D50, D90 mainly embody applicant and prepare the concentrated important parameter of presoma particle diameter, and on market, ternary precursor conventional particle size requires is 9-9.5 μm.
The preparation method of this high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, comprises the steps:
(1) select nickel, cobalt, manganese soluble-salt to be raw material, the chemical formula of the high power capacity precursor of nickel-cobalt-lithium-manganese-oxide of preparation is Ni xco ymn z(OH) 2wherein (0.5≤x≤0.9,0.05≤y≤0.2,0.05≤z≤0.3, x+y+z=1) metal mixed salting liquid is made into according to mol ratio x:y:z, by liquid at the bottom of the complexing agent of pure water and certain mass, alkali lye mixture anabolic reaction, then by metal mixed salting liquid, complexing agent, alkali lye three respectively according to mol ratio 1.1:1:2.3 measuring pump and stream adds hybrid reaction in reactor, reaction system adopts high and low rotating speed control by stages.After reaction feed 15h, ageing 1h, then filtering makes Separation of Solid and Liquid wash again, first use pure water 30min, again with the 0.1mol/L alkali liquid washing prepared, reusable heat pure water, after finally drying, prepares that centralized particle diameter, tap density are high, the high power capacity precursor of nickel-cobalt-lithium-manganese-oxide of good sphericity.
(2) nickel described in, cobalt, manganese soluble-salt adopt respectively sulfate, chlorate, nitrate wherein one or more.
(3) be 0.5-3.0mol/L according to the nickel of molar ratio, cobalt, manganese soluble salt solutions total concentration, temperature controls at 20-50 DEG C.
(4) complexing agent described in be ammoniacal liquor, ammonium sulfate, ammonium chloride wherein one or more, controlled concentration is 6-10mol/L.
(5) alkali lye (precipitation reagent) described in select NaOH, potassium hydroxide, calcium hydroxide wherein one or more, controlled concentration is 5-10mol/L.
(6) nickel of described preparation, cobalt, manganese soluble salt solutions have to pass through secondary filter, remove magnetisable material except chinaware.
(7) the high-capacity lithium ion cell precursor power described in adopts and has simulated still, and the volume ratio of wherein reacting pure water, complexing agent and alkali lye in end liquid is 80:1 ~ 2:1, accounts for 15% of the effective total measurement (volume) of reactor.
(8) the 0.1mol/L alkali lye wherein washed described in prepares in proportion with the alkali lye of the pure water under normal temperature and reaction.
(9) wherein washing hot pure water temperature used after reaction aging is 50-80 DEG C.
(10) reaction system is in constant pH by the flow wherein by adding separately with measuring pump control metal mixed salting liquid, complexing agent, alkali lye, and this pH is 11.5-12.0.
(11) speed of agitator 200-400r/min is controlled when wherein reaction system starts to generate nucleus, when nucleus growth is adjusted downward to 100-200r/min to rotating speed during certain size.
(12) the high-capacity lithium ion cell granular precursor of preparing described in is 3-18 μm, and centralized particle diameter, tap density are high, good sphericity.
The inventive method, based on coprecipitation reaction, adopts and has simulated still, and the volume ratio of wherein reacting pure water, complexing agent and alkali lye in end liquid is 80:2:1, accounts for 15% of the effective total measurement (volume) of reactor.Reaction system adopts high and low rotating speed to control stage by stage, automatically reaction system is regulated to be in constant pH with online pH controller, such nucleus growth environment all-the-time stable, successively 0.1mol/L alkali lye and hot pure water is added during washing feed liquid, preparation technology is accurate, equipment requirement is simple, and the granular precursor prepared is 3-18 μm, and centralized particle diameter, tap density are high, good sphericity, specific capacity are high.Solve cell positive material material capacity low, high cost, the shortcomings such as cycle performance difference.
Embodiment 1:
Ni 0.8co 0.1mn 0.1(OH) 2the preparation of presoma:
The nickel cobalt manganate raw material selected is nickelous sulfate, cobaltous sulfate, manganese sulfate respectively, then prepares 1.5mol/L, the nickel cobalt manganese mixing salt solution of 30 DEG C according to mol ratio 8:1:1.Alkali lye adopts 6mol/L sodium hydrate aqueous solution, as reaction precipitation agent.Complexing agent adopts the ammoniacal liquor of 8mol/L, is used as reaction complexing agent.
Before opening still, add liquid at the bottom of pure water, above-mentioned ammoniacal liquor and above-mentioned alkali lye anabolic reaction respectively by volume to clean reactor for 80:1 ~ 2:1, wherein the ammonia total concentration of reacting in end liquid is 2.5g/L, and end liquid pH is about 12.3.No paddle, be warming up to 40 DEG C, speed of agitator 100r/min.
Respectively aforementioned ready nickel cobalt manganese sulfuric acid (mixing) salting liquid, ammoniacal liquor and sodium hydrate aqueous solution are simultaneously flow in reactor with measuring pump according to mol ratio 1.1:1:2.3 continuously, react at N 2protection under carry out, control speed of agitator 400r/min when system starts nucleation, when nucleus growth is adjusted downward to 200r/min to rotating speed when 6 μm.Reaction temperature controls at 50 DEG C, and pH controls at 11.8-12.0, after reaction 25h, when mean particle size grows to 9-10 μm, stops charging.Stir 30min, all flow into aging reactor through overfall, ageing 2h, then filtering makes Separation of Solid and Liquid wash again, first uses pure water 30min, then with the 0.1mol/L alkali liquid washing prepared, put into centrifuge with hot pure water afterwards to dry, move into baking oven dry at 105 DEG C, screening.High power capacity Ni can be synthesized 0.8co 0.1mn 0.1(OH) 2presoma (as shown in accompanying drawing 1SEM).
Use Ni 0.8co 0.1mn 0.1(OH) 2presoma and lithium carbonate proportionally mix with ball mill, and roasting becomes positive electrode, and constant temperature is assembled into some simulated batteries at 1C, voltage 2.7-4.3V, under current density 20mA/g, first charge-discharge specific capacity reaches 195mAh/g and 186.5mAh/g, and 50 capability retentions that circulate are 95.6%.
Embodiment 2:
Ni 0.8co 0.15mn 0.05(OH) 2the preparation of presoma:
The preparation of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, the nickel cobalt manganate adopting solubility is raw materials, and nickel salt adopts nickel chloride, and cobalt salt is cobalt chloride, and manganese salt is manganese chloride.The nickel cobalt manganese mixing salt solution of 1.5mol/L is prepared according to mol ratio 8:1.5:0.5.Alkali lye (precipitation reagent) adopts sodium hydrate aqueous solution, and concentration is 6mol/L.Complexing agent adopts ammoniacal liquor, and concentration is 8mol/L.
Before opening still, add liquid at the bottom of pure water, ammoniacal liquor and alkali lye anabolic reaction respectively by volume to clean reactor for 80:1 ~ 2:1, wherein the ammonia total concentration of reacting in end liquid is 2.3g/L, and end liquid pH is about 12.2.No paddle, be warming up to 40 DEG C, speed of agitator 100r/min.
Respectively aforementioned ready nickel cobalt mn sulphate solution, ammoniacal liquor and sodium hydrate aqueous solution are simultaneously flow in reactor with measuring pump according to mol ratio 1.1:1:2.3 continuously, react at N 2protection under carry out, control speed of agitator 400r/min when system starts nucleation, when nucleus growth is adjusted downward to 200r/min to rotating speed when 6 μm.Reaction temperature controls at 50 DEG C, and pH controls at 11.5-11.8, after reaction 25h, when mean particle size grows to 9-10 μm, stops charging.Stir 30min, all flow into aging reactor through overfall, ageing 2h, then filtering makes Separation of Solid and Liquid wash again, first uses pure water 30min, then with the 0.1mol/L alkali liquid washing prepared, put into centrifuge with hot pure water afterwards to dry, move into baking oven dry at 105 DEG C, screening.High power capacity Ni can be synthesized 0.8co 0.15mn 0.05(OH) 2presoma (as shown in accompanying drawing 1SEM).
By Ni 0.8co 0.15mn 0.05(OH) 2presoma and lithium carbonate ball mill mix, high-temperature roasting, assemble button 18650 battery under constant temperature, at 1C, under 2.7-4.3V voltage and 25mA/g current density, first charge-discharge specific capacity reaches 192.2mAh/g and 184.5mAh/g, and 50 capability retentions that circulate are 96%.
Embodiment 3:
Ni 0.7co 0.15mn 0.15(OH) 2precursor power:
Adopt nickel cobalt manganate raw material to be nickelous sulfate, cobaltous sulfate, manganese sulfate respectively, be then mixed with the nickel cobalt manganese mixing salt solution of 1.5mol/L according to mol ratio 7:1.5:1.5.Alkali lye (precipitation reagent) selects sodium hydrate aqueous solution, and concentration is 6mol/L.Ammoniacal liquor selected by complexing agent, and concentration is 8mol/L.
Before opening still, add liquid at the bottom of pure water, ammoniacal liquor and alkali lye anabolic reaction respectively by volume to clean reactor for 80:1 ~ 2:1, wherein the ammonia total concentration of reacting in end liquid is 2.0g/L, and end liquid pH is about 12.0.No paddle, be warming up to 40 DEG C, speed of agitator 100r/min.
Respectively aforementioned ready nickel cobalt mn sulphate solution, ammoniacal liquor and sodium hydrate aqueous solution are simultaneously flow in reactor with measuring pump according to mol ratio 1.1:1:2.3 continuously, react at N 2protection under carry out, control speed of agitator 400r/min when system starts nucleation, when nucleus growth is adjusted downward to 200r/min to rotating speed when 6 μm.Reaction temperature controls at 50 DEG C, and pH controls at 11.5-11.6, after reaction 25h, when mean particle size grows to 9-10 μm, stops charging.Stir 30min, all flow into aging reactor through overfall, ageing 2h, then filtering makes Separation of Solid and Liquid wash again, first uses pure water 30min, then with the 0.1mol/L alkali liquid washing prepared, put into centrifuge with hot pure water afterwards to dry, move into baking oven dry at 105 DEG C, screening.Synthesize high power capacity Ni 0.7co 0.15mn 0.15(OH) 2presoma presoma (as shown in accompanying drawing 3SEM).
By Ni 0.7co 0.15mn 0.15(OH) 2presoma and lithium carbonate ball mill mix, and high-temperature roasting assembles simulated battery under constant temperature, and under 1C, 2.5-4.3V voltage and 30mA/g current density, first charge-discharge specific capacity reaches 190mAh/g and 182.5mAh/g, and 50 capability retentions that circulate are 95%.

Claims (10)

1. a high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, is characterized in that: chemical formula is Ni xco ymn z(OH) 2, wherein 0.5≤x≤0.9,0.05≤y≤0.2,0.05≤z≤0.3, x+y+z=1.
2. the preparation method of a high power capacity precursor of nickel-cobalt-lithium-manganese-oxide, it is characterized in that, comprise the steps: to select nickel according to the proportioning of the chemical formula recorded in claim 1, cobalt, the soluble-salt of manganese is raw material, metal mixed salting liquid is made into again with pure water, by pure water and complexing agent, alkali lye mixture becomes reaction end liquid to add in reactor, then by metal mixed salting liquid, complexing agent, alkali lye three is respectively according to mol ratio 1.1:1:2.3 measuring pump and stream adds hybrid reaction in reactor, reaction system adopts high and low rotating speed control by stages, when after reaction feed 12-15h, ageing 1-2h, then filtering makes Separation of Solid and Liquid wash again, specifically first use pure water, again with the 0.1mol/L alkali liquid washing prepared, reusable heat pure water, after finally drying.
3. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: wherein the soluble-salt of nickel, cobalt, manganese specifically adopts sulfate, chlorate or nitrate.
4. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: wherein the total concentration of metal mixed salting liquid is 0.5-3.0mol/L, and temperature controls at 20-50 DEG C; Its complexing agent is at least one in ammoniacal liquor, ammonium sulfate, ammonium chloride and ammonium oxalate, and controlled concentration is 6-10mol/L; Wherein alkali lye is at least one in sodium hydroxide solution, potassium hydroxide solution and aqua calcis, and to control concentration of lye be 5-10mol/L.
5. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: wherein metal mixed salting liquid first filters through 200 eye mesh screens before use, then removes magnetisable material with except chinaware.
6. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: the volume ratio of wherein reacting pure water, complexing agent and alkali lye in end liquid is 80:1 ~ 2:1, and react that end liquid accounts for the effective total measurement (volume) of reactor 15%.
7. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: the 0.1mol/L alkali lye wherein washed prepares in proportion with the alkali lye of the pure water under normal temperature and reaction.
8. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, is characterized in that: wherein washing hot pure water temperature used after reaction aging is 50-80 DEG C.
9. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, it is characterized in that: reaction system is in constant pH by the flow wherein by adding separately with measuring pump control metal mixed salting liquid, complexing agent, alkali lye, and this pH is 11.5-12.0.
10. the preparation method of a kind of high power capacity precursor of nickel-cobalt-lithium-manganese-oxide as claimed in claim 2, it is characterized in that: control speed of agitator 200-400r/min when wherein high and low rotating speed control by stages specifically refers to that reaction system starts to generate nucleus, when nucleus growth is adjusted downward to 100-200r/min to rotating speed when 6 μm.
CN201510216749.4A 2015-04-30 2015-04-30 High-capacity nickel-cobalt-lithium manganate precursor and preparation method thereof Pending CN105118981A (en)

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CN107265520A (en) * 2017-07-19 2017-10-20 金驰能源材料有限公司 The preparation method and product of a kind of spherical nickel cobalt manganese persursor material
CN107399766A (en) * 2017-06-19 2017-11-28 金驰能源材料有限公司 A kind of preparation method of spherical nickel cobalt manganese persursor material
CN107611383A (en) * 2017-08-25 2018-01-19 浙江华友钴业股份有限公司 A kind of preparation method of the nickel-cobalt-manganese ternary presoma of low-sulfur high-tap density
CN107640792A (en) * 2017-11-16 2018-01-30 中南大学 A kind of high compact small particle nickel cobalt manganese hydroxide and preparation method thereof
CN107902704A (en) * 2017-11-15 2018-04-13 金驰能源材料有限公司 The method and the preparation method of nickel cobalt manganese persursor material that high magnetic material in being prepared to cathode persursor material is recycled
CN108365214A (en) * 2017-12-28 2018-08-03 宁夏东方钽业股份有限公司 A kind of high-performance small particle ternary anode material precursor and preparation method thereof
CN108565455A (en) * 2018-05-30 2018-09-21 北京石油化工学院 A kind of method that non-nitrogen containing complexing agent auxiliary prepares spherical nickel cobalt manganese ternary precursor
CN109585810A (en) * 2018-11-09 2019-04-05 江苏容汇通用锂业股份有限公司 A kind of preparation method of modification lithium-ion battery anode material
CN109888242A (en) * 2019-03-12 2019-06-14 四川纳创时代新能源科技有限公司 A kind of high-tap density cobalt nickel lithium manganate ternary material and preparation method thereof
CN111018007A (en) * 2019-12-20 2020-04-17 大连博融新材料有限公司 High tap density and high nickel ternary precursor, and preparation method and application thereof
CN111640935A (en) * 2020-04-18 2020-09-08 浙江金鹰新能源技术开发有限公司 Preparation method of nickel-cobalt-manganese precursor for flaky laminated embedded accumulated secondary particles
CN112299494A (en) * 2020-10-29 2021-02-02 格林爱科(荆门)新能源材料有限公司 Preparation method of nickel-cobalt hydroxide material
CN112510194A (en) * 2019-09-16 2021-03-16 惠州比亚迪实业有限公司 Ternary cathode material of lithium ion battery, preparation method of ternary cathode material and lithium ion battery
CN112645392A (en) * 2021-03-11 2021-04-13 金驰能源材料有限公司 Laminated high-density sphere-like cobalt oxyhydroxide precursor and preparation method thereof
CN114014376A (en) * 2021-09-30 2022-02-08 宜宾锂宝新材料有限公司 Novel method for preparing nickel cobalt lithium manganate precursor by continuous method
CN114057239A (en) * 2021-12-16 2022-02-18 中国长江三峡集团有限公司 Preparation method of alkaline water-washing-containing high-nickel ternary precursor
CN115849463A (en) * 2022-12-19 2023-03-28 广东佳纳能源科技有限公司 High-nickel ternary precursor and preparation method thereof

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CN105731553A (en) * 2016-02-03 2016-07-06 广东佳纳能源科技有限公司 Drusy ternary anode material precursor and preparation method thereof
CN107399766A (en) * 2017-06-19 2017-11-28 金驰能源材料有限公司 A kind of preparation method of spherical nickel cobalt manganese persursor material
CN107265520A (en) * 2017-07-19 2017-10-20 金驰能源材料有限公司 The preparation method and product of a kind of spherical nickel cobalt manganese persursor material
CN107265520B (en) * 2017-07-19 2019-05-03 金驰能源材料有限公司 A kind of preparation method and product of spherical nickel cobalt manganese persursor material
CN107611383B (en) * 2017-08-25 2020-05-19 浙江华友钴业股份有限公司 Preparation method of nickel-cobalt-manganese ternary precursor with low sulfur and high tap density
CN107611383A (en) * 2017-08-25 2018-01-19 浙江华友钴业股份有限公司 A kind of preparation method of the nickel-cobalt-manganese ternary presoma of low-sulfur high-tap density
CN107902704A (en) * 2017-11-15 2018-04-13 金驰能源材料有限公司 The method and the preparation method of nickel cobalt manganese persursor material that high magnetic material in being prepared to cathode persursor material is recycled
CN107640792A (en) * 2017-11-16 2018-01-30 中南大学 A kind of high compact small particle nickel cobalt manganese hydroxide and preparation method thereof
CN108365214A (en) * 2017-12-28 2018-08-03 宁夏东方钽业股份有限公司 A kind of high-performance small particle ternary anode material precursor and preparation method thereof
CN108565455A (en) * 2018-05-30 2018-09-21 北京石油化工学院 A kind of method that non-nitrogen containing complexing agent auxiliary prepares spherical nickel cobalt manganese ternary precursor
CN109585810A (en) * 2018-11-09 2019-04-05 江苏容汇通用锂业股份有限公司 A kind of preparation method of modification lithium-ion battery anode material
CN109888242A (en) * 2019-03-12 2019-06-14 四川纳创时代新能源科技有限公司 A kind of high-tap density cobalt nickel lithium manganate ternary material and preparation method thereof
CN112510194A (en) * 2019-09-16 2021-03-16 惠州比亚迪实业有限公司 Ternary cathode material of lithium ion battery, preparation method of ternary cathode material and lithium ion battery
CN112510194B (en) * 2019-09-16 2022-04-15 惠州比亚迪实业有限公司 Ternary cathode material of lithium ion battery, preparation method of ternary cathode material and lithium ion battery
CN111018007A (en) * 2019-12-20 2020-04-17 大连博融新材料有限公司 High tap density and high nickel ternary precursor, and preparation method and application thereof
CN111018007B (en) * 2019-12-20 2022-09-09 大连博融新材料有限公司 High tap density and high nickel ternary precursor, and preparation method and application thereof
CN111640935A (en) * 2020-04-18 2020-09-08 浙江金鹰新能源技术开发有限公司 Preparation method of nickel-cobalt-manganese precursor for flaky laminated embedded accumulated secondary particles
CN112299494A (en) * 2020-10-29 2021-02-02 格林爱科(荆门)新能源材料有限公司 Preparation method of nickel-cobalt hydroxide material
CN112645392A (en) * 2021-03-11 2021-04-13 金驰能源材料有限公司 Laminated high-density sphere-like cobalt oxyhydroxide precursor and preparation method thereof
CN114014376A (en) * 2021-09-30 2022-02-08 宜宾锂宝新材料有限公司 Novel method for preparing nickel cobalt lithium manganate precursor by continuous method
CN114057239A (en) * 2021-12-16 2022-02-18 中国长江三峡集团有限公司 Preparation method of alkaline water-washing-containing high-nickel ternary precursor
CN115849463A (en) * 2022-12-19 2023-03-28 广东佳纳能源科技有限公司 High-nickel ternary precursor and preparation method thereof

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