CN104577093A - Surface coating modified lithium ion battery cathode material and preparation method thereof - Google Patents
Surface coating modified lithium ion battery cathode material and preparation method thereof Download PDFInfo
- Publication number
- CN104577093A CN104577093A CN201510015854.1A CN201510015854A CN104577093A CN 104577093 A CN104577093 A CN 104577093A CN 201510015854 A CN201510015854 A CN 201510015854A CN 104577093 A CN104577093 A CN 104577093A
- Authority
- CN
- China
- Prior art keywords
- lithium
- surface coating
- lini
- ion batteries
- anode material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a surface coating modified lithium ion battery cathode material and a preparation method thereof. The surface coating modified lithium ion battery cathode material has a general chemical formula of LiNi<1-a-b>CoaAlbO2/M, wherein a is more than 0.1 and less than 0.3, b is more than 0.01 and less than 0.2, and M refers to a coating layer. The material is coated by adopting a dry method; the coating layer refers to one or a mixture of two of lithium iron phosphate and lithium ferric manganese phosphate; and the mass ratio of the coating layer to LiNi<1-a-b>CoaAlbO2 is (0.01-0.2):1. The surface coating modified lithium ion battery cathode material and the preparation method thereof disclosed by the invention have the advantages that the stability of the cathode material is improved, and the safety performance of the material is improved; and moreover, in the dry-method coating process, waste liquor is not produced, high-temperature sintering is not needed, and the energy consumption and cost can be reduced.
Description
Technical field
The present invention relates to a kind of field of lithium ion battery, particularly relate to anode material for lithium-ion batteries of a kind of surface coating modification and preparation method thereof.
Background technology
As a kind of novel green secondary cell, lithium battery has that volume is little, quality is light, specific capacity is large, has extended cycle life, the advantage such as self discharge is little, memory-less effect, the fields such as Portable movable electronic product and electric vehicle are widely used at present, positive electrode, as one of lithium ion battery core component, greatly have impact on the performance of lithium ion battery.Relative to the positive pole material of lithium cobalt acid of industrialization, LiMn2O4, nickle cobalt lithium manganate and LiFePO4, nickel cobalt lithium aluminate has the advantage that price is low, gram volume is high, volume and capacity ratio is high, is with a wide range of applications.
Although nickel cobalt lithium aluminate has plurality of advantages, the shortcomings such as moisture absorption is high owing to existing, cycle performance is stable not make it be subject to a definite limitation in application aspect, and therefore the modification of material becomes problem demanding prompt solution.In order to improve positive electrode, conventional method carries out coating modification to positive pole material surface.At present, the Surface coating reported comprises: containing metal oxides such as magnesium, aluminium, zirconium, titaniums, containing metal fluorides etc. such as aluminium, magnesium, titanium, zirconiums.Metal oxide effectively can stop the reaction of positive electrode and electrolyte, improves the cycle performance of lithium ion battery; Metal fluoride layer can suppress the hydrofluoric acid of electrolyte and the reaction of active material, reduce the capacity attenuation of battery in charge and discharge cycles, but metallic compound does not have good conductivity, the diffusion velocity of lithium ion in this coating layer is slower, positive electrode conductive capability is caused to be deteriorated, increase the internal resistance of cell, have impact on the discharge-rate of battery, reduce the chemical property of battery.
Summary of the invention
Object of the present invention aims to provide anode material for lithium-ion batteries of a kind of surface coating modification and preparation method thereof.By to LiNi
1-a-bco
aal
bo
2it is coated that positive electrode carries out finishing, and the cycle performance of lithium battery and security performance are improved.
The object of the invention is to be achieved through the following technical solutions:
First aspect, a kind of anode material for lithium-ion batteries of surface coating modification, chemical general formula is LiNi
1-a-bco
aal
bo
2/ M, wherein 0.1<a<0.3,0.01<b<0.2, M are coating layer.
As preferably, described coating layer is a kind of or mixture of the two in LiFePO4, lithium ferric manganese phosphate.
As preferably, described coating layer and LiNi
1-a-bco
aal
bo
2mass ratio be 0.01 ~ 0.2:1.
As further preferred, described coating layer and LiNi
1-a-bco
aal
bo
2mass ratio be 0.01 ~ 0.1:1.
Second aspect, a kind of preparation method of anode material for lithium-ion batteries of a kind of surface coating modification as described in relation to the first aspect, is characterized in that, comprise the following steps:
(1) the nickel salts of solubility, cobalt salt and aluminium salt are dissolved in a certain amount of deionized water according to predetermined mol ratio, are mixed with mixing salt solution, NaOH and ammonia solvent are mixed with mixed ammonium/alkali solutions in deionized water; Above-mentioned mixing salt solution and mixed ammonium/alkali solutions are added in deionized water with certain speed, the pH value controlling reaction system is 9 ~ 12, and reaction temperature is 30 ~ 80 DEG C, after reaction a period of time, through filtering, washing and drying, obtain positive electrode material precursor (Ni
1-a-bco
aal
b) (OH)
2, wherein 0.1<a<0.3,0.01<b<0.2,0<1-a-b<1;
by above-mentioned positive electrode material precursor powder and lithium salts powder ball milling Homogeneous phase mixing by a certain percentage, high-temperature calcination in oxygen atmosphere, through supercooling, grinds and obtains LiNi after sieving
1-a-bco
aal
bo
2;
by LiNi
1-a-bco
aal
bo
2powder and nano-grade lithium iron phosphate or lithium ferric manganese phosphate or the mixture of the two through dry mixed, make nano-grade lithium iron phosphate or/and lithium ferric manganese phosphate is evenly coated on LiNi by certain mass ratio
1-a-bco
aal
bo
2powder surface, obtains the LiNi of modification through Overheating Treatment
1-a-bco
aal
bo
2positive electrode.
As preferably, described nickel salts, cobalt salt and aluminium salt are respectively one or more in nitrate, sulfate and chlorate; Described nickel salts, cobalt salt and aluminium salt in the mol ratio of the summation of nickel cobalt aluminum metal are respectively: (1-a-b): a:b, wherein 0.1<a<0.3,0.01<b<0.2,0<1-a-b<1; In described mixed ammonium/alkali solutions, the mol ratio of NaOH and ammoniacal liquor is 1:1.
As preferably, described lithium salts is one or more in lithium carbonate, lithium hydroxide, lithium acetate, lithium chloride and lithium sulfate, described lithium salts in the summation of elemental lithium and dried positive electrode material precursor in the mol ratio of the summation of nickel cobalt aluminum metal for 1.01 ~ 1.10:1.
As preferably, the temperature of described high-temperature calcination is 800 ~ 1000 DEG C, and calcination time is 6 ~ 16h.
As preferably, described heat treatment temperature is 400 ~ 600 DEG C, and heat treatment time is 5 ~ 10h.
Compared with prior art, great advantage of the present invention is embodied in:
(1) the present invention carries out surface coating decoration by adopting LiFePO4 or lithium ferric manganese phosphate to positive electrode, security performance can be improved, the compacted density of material can be ensured again, clad material LiFePO4 and lithium ferric manganese phosphate are lithium battery active materials simultaneously, there is excellent security performance and cycle performance, therefore the advantage adopting LiFePO4 or lithium ferric manganese phosphate to carry out cladding ratio employing inert matter coated obviously to reduce the specific capacity of positive electrode, improve the stability of positive electrode simultaneously, improve the security performance of material.
employing dry method is coated, does not produce waste liquid simultaneously without the need to high temperature sintering, capable of reducing energy consumption and cost in coated process.Coating equipment is simple, and can realize continuous automatic production, simple to operate, the coated time is short, and environmental pollution is few, is conducive to suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the nickel cobalt lithium aluminate cathode material first charge-discharge curve chart of embodiment 1.
Fig. 2 is the nickel cobalt lithium aluminate cathode material cycle charge-discharge curve chart of embodiment 1.
Embodiment
In order to have darker understanding to the present invention; below in conjunction with embodiment, technical scheme is clearly and completely described; but embodiments of the invention are only used to explain the present invention; and unrestricted the present invention; the every other case study on implementation that those skilled in the art obtain under the prerequisite not making creative work, all belongs to protection scope of the present invention.
Embodiment 1:
By the nickel nitrate of the mol ratio of Ni:Co:Al to be 0.8:0.15:0.05 preparing metal total concentration be 1mol/L, cobalt nitrate and nine water aluminum nitrate mixed aqueous solutions; Preparation total concentration is the NaOH of 10mol/L and the mixed solution of ammoniacal liquor, and wherein the mol ratio of NaOH and ammoniacal liquor is 1:1.
Above-mentioned two kinds of solution are joined reactor with certain speed simultaneously, control reaction pH value be 12, reaction temperature is 50 DEG C, reaction 6h after ageing 8h, after filtration, washing, dry after obtain nickel cobalt lithium aluminate cathode material presoma.
By above-mentioned nickel cobalt lithium aluminate cathode material presoma with lithium carbonate according to Li:(Ni+Co+Al) for after the ratio of 1.05:1 mixes, at 900 DEG C of high-temperature calcination 8h, cooling, pulverizes, sieving obtains nickel cobalt lithium aluminate cathode material.
By LiNi
1-a-bco
aal
bo
2powder and nano-grade lithium iron phosphate in mass ratio 1:0.1 carry out dry mixed, make nano-grade lithium iron phosphate evenly be coated on LiNi
1-a-bco
aal
bo
2powder surface, obtains the LiNi of modification at 600 DEG C of heat treatment 8h
1-a-bco
aal
bo
2positive electrode.
The electrochemical property test of material adopts blue electric battery test system to test at 25 DEG C, high rate performance test condition: test voltage scope be 3V ~ 4.3V, 0.1C discharge and recharge once; Cycle performance test condition: test voltage scope is 3V ~ 4.3V, carries out discharge and recharge with 1C multiplying power, circulates 500 weeks, investigates capability retention.The specific discharge capacity of material under 0.1C multiplying power is that 197.5mAh/g, 1C charge and discharge cycles 500 weeks capability retentions are greater than 93%, and cycle performance is better.
Embodiment 2:
By the nickel nitrate of the mol ratio of Ni:Co:Al to be 0.8:0.15:0.05 preparing metal total concentration be 1mol/L, cobalt nitrate and nine water aluminum nitrate mixed aqueous solutions; Preparation total concentration is the NaOH of 10mol/L and the mixed solution of ammoniacal liquor, and wherein the mol ratio of NaOH and ammoniacal liquor is 1:1.
Above-mentioned two kinds of solution are joined reactor with certain speed simultaneously, control reaction pH value be 10, reaction temperature is 50 DEG C, reaction 6h after ageing 8h, after filtration, washing, dry after obtain nickel cobalt lithium aluminate cathode material presoma.
By above-mentioned nickel cobalt lithium aluminate cathode material presoma with lithium carbonate according to Li:(Ni+Co+Al) for after the ratio of 1.05:1 mixes, at 900 DEG C of high-temperature calcination 8h, cooling, pulverizes, sieving obtains nickel cobalt lithium aluminate cathode material.
By LiNi
1-a-bco
aal
bo
2powder and nano ferric phosphate manganese lithium in mass ratio 1:0.05 carry out dry mixed, make nano ferric phosphate manganese lithium evenly be coated on LiNi
1-a-bco
aal
bo
2powder surface, at 550 DEG C, heat treatment 10h obtains the LiNi of modification
1-a-bco
aal
bo
2positive electrode.
Embodiment 3:
By the nickel nitrate of the mol ratio of Ni:Co:Al to be 0.85:0.10:0.05 preparing metal total concentration be 1mol/L, cobalt nitrate and nine water aluminum nitrate mixed aqueous solutions; Preparation total concentration is the NaOH of 10mol/L and the mixed solution of ammoniacal liquor, and wherein the mol ratio of NaOH and ammoniacal liquor is 1:1.
Above-mentioned two kinds of solution are joined reactor with certain speed simultaneously, control reaction pH value be 11, reaction temperature is 60 DEG C, reaction 6h after ageing 8h, after filtration, washing, dry after obtain nickel cobalt lithium aluminate cathode material presoma.
By above-mentioned nickel cobalt lithium aluminate cathode material presoma with lithium carbonate according to Li:(Ni+Co+Al) for after the ratio of 1.08:1 mixes, at 800 DEG C of high-temperature calcination 12h, cooling, pulverizes, sieving obtains nickel cobalt lithium aluminate cathode material.
By LiNi
1-a-bco
aal
bo
2powder, nano-grade lithium iron phosphate and nano ferric phosphate manganese lithium in mass ratio 1:0.05:0.05 carry out dry mixed, make nano-grade lithium iron phosphate and nano ferric phosphate manganese lithium evenly be coated on LiNi
1-a-bco
aal
bo
2powder surface, at 500 DEG C, heat treatment 12h obtains the LiNi of modification
1-a-bco
aal
bo
2positive electrode.
Claims (9)
1. an anode material for lithium-ion batteries for surface coating modification, is characterized in that, chemical general formula is LiNi
1-a-bco
aal
bo
2/ M, wherein 0.1<a<0.3,0.01<b<0.2, M are coating layer.
2. the anode material for lithium-ion batteries of surface coating modification according to claim 1, is characterized in that, described coating layer is a kind of or mixture of the two in LiFePO4 and lithium ferric manganese phosphate.
3. the anode material for lithium-ion batteries of surface coating modification according to claim 1, is characterized in that, described coating layer and LiNi
1-a-bco
aal
bo
2mass ratio be 0.01 ~ 0.2:1.
4. the anode material for lithium-ion batteries of surface coating modification according to claim 1, is characterized in that, described coating layer and LiNi
1-a-bco
aal
bo
2mass ratio be 0.01 ~ 0.1:1.
5. a preparation method for the anode material for lithium-ion batteries of surface coating modification as claimed in claim 1, is characterized in that, comprises the following steps:
(1) the nickel salts of solubility, cobalt salt and aluminium salt are dissolved in a certain amount of deionized water according to predetermined mol ratio, are mixed with mixing salt solution, NaOH and ammonia solvent are mixed with mixed ammonium/alkali solutions in deionized water; Above-mentioned mixing salt solution and mixed ammonium/alkali solutions are added in deionized water with certain speed, the pH value controlling reaction system is 9 ~ 12, and reaction temperature is 30 ~ 80 DEG C, after reaction a period of time, through filtering, washing and drying, obtain positive electrode material precursor (Ni
1-a-bco
aal
b) (OH)
2, wherein 0.1<a<0.3,0.01<b<0.2,0<1-a-b<1;
by above-mentioned positive electrode material precursor powder and lithium salts powder ball milling Homogeneous phase mixing by a certain percentage, high-temperature calcination in oxygen atmosphere, through supercooling, grinds and obtains LiNi after sieving
1-a-bco
aal
bo
2powder;
by LiNi
1-a-bco
aal
bo
2powder and nano-grade lithium iron phosphate or lithium ferric manganese phosphate or the mixture of the two through dry mixed, make nano-grade lithium iron phosphate or/and lithium ferric manganese phosphate is evenly coated on LiNi by certain mass ratio
1-a-bco
aal
bo
2powder surface, obtains the LiNi of modification through Overheating Treatment
1-a-bco
aal
bo
2positive electrode.
6. the preparation method of the anode material for lithium-ion batteries of surface coating modification according to claim 5, is characterized in that, described nickel salts, cobalt salt and aluminium salt are respectively one or more in nitrate, sulfate and chlorate; Described nickel salts, cobalt salt and aluminium salt in the mol ratio of the summation of nickel cobalt aluminum metal are respectively: (1-a-b): a:b, wherein 0.1<a<0.3,0.01<b<0.2,0<1-a-b<1; In described mixed ammonium/alkali solutions, the mol ratio of NaOH and ammoniacal liquor is 1:1.
7. the preparation method of the anode material for lithium-ion batteries of surface coating modification according to claim 5, it is characterized in that, described lithium salts is one or more in lithium carbonate, lithium hydroxide, lithium acetate, lithium chloride and lithium sulfate, described lithium salts in the summation of elemental lithium and dried positive electrode material precursor in the mol ratio of the summation of nickel cobalt aluminum metal for 1.01 ~ 1.10:1.
8. the preparation method of the anode material for lithium-ion batteries of surface coating modification according to claim 5, is characterized in that, the temperature of described high-temperature calcination is 800 ~ 1000 DEG C, and calcination time is 6 ~ 16h.
9. the preparation method of the anode material for lithium-ion batteries of surface coating modification according to claim 5, is characterized in that, described heat treatment temperature is 400 ~ 600 DEG C, and heat treatment time is 5 ~ 10h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015854.1A CN104577093A (en) | 2015-01-13 | 2015-01-13 | Surface coating modified lithium ion battery cathode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015854.1A CN104577093A (en) | 2015-01-13 | 2015-01-13 | Surface coating modified lithium ion battery cathode material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104577093A true CN104577093A (en) | 2015-04-29 |
Family
ID=53092670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510015854.1A Pending CN104577093A (en) | 2015-01-13 | 2015-01-13 | Surface coating modified lithium ion battery cathode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104577093A (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161705A (en) * | 2015-06-29 | 2015-12-16 | 山东玉皇新能源科技有限公司 | Lithium manganese phosphate-coated nickel-cobalt lithium manganate cathode material and preparation method thereof |
| CN105304880A (en) * | 2015-11-27 | 2016-02-03 | 上海空间电源研究所 | Mixed cathode material for lithium-ion battery |
| CN105336944A (en) * | 2015-12-09 | 2016-02-17 | 四川富骅新能源科技有限公司 | High-capacity cathode material for lithium ion batteries and preparation method thereof |
| CN105355880A (en) * | 2015-11-13 | 2016-02-24 | 山东精工电子科技有限公司 | Preparation method of LiFePO4/C modified ternary positive electrode material |
| CN105514373A (en) * | 2016-01-18 | 2016-04-20 | 四川富骅新能源科技有限公司 | Positive electrode material of high-capacity lithium ion battery and preparation method of positive electrode material |
| CN106299353A (en) * | 2015-06-01 | 2017-01-04 | 龙能科技（苏州）有限公司 | Nickel cobalt lithium aluminate composite and its preparation method and application |
| CN106910874A (en) * | 2017-03-03 | 2017-06-30 | 北京理工大学 | A kind of Surface coating Li2TiO3With the high-nickel material and preparation method of top layer doping Ti |
| CN107546388A (en) * | 2016-06-29 | 2018-01-05 | 万向二三股份公司 | A kind of nickel cobalt aluminic acid lithium material for the method and gained for coating nickel cobalt lithium aluminate |
| CN107658432A (en) * | 2016-07-26 | 2018-02-02 | 微宏动力系统（湖州）有限公司 | The preparation method and its positive electrode of modified metal-oxide positive electrode |
| CN107665983A (en) * | 2017-08-07 | 2018-02-06 | 深圳市德方纳米科技股份有限公司 | Anode material for lithium-ion batteries and preparation method thereof and lithium ion battery |
| CN108172826A (en) * | 2017-12-30 | 2018-06-15 | 国联汽车动力电池研究院有限责任公司 | A method for coating high-nickel ternary materials with lithium iron phosphate nanoparticles |
| CN108630936A (en) * | 2017-03-24 | 2018-10-09 | 中天新兴材料有限公司 | Positive electrode and preparation method thereof |
| CN108630904A (en) * | 2017-03-24 | 2018-10-09 | 中天新兴材料有限公司 | A kind of anode composite material and its preparation method and application |
| CN109390579A (en) * | 2018-06-29 | 2019-02-26 | 福建金山锂科新材料有限公司 | A kind of preparation method of the nickelic tertiary cathode material of dry and wet carbon coating |
| WO2019041788A1 (en) * | 2017-08-28 | 2019-03-07 | 中国科学院宁波材料技术与工程研究所 | Core-shell material |
| CN109874306A (en) * | 2017-08-18 | 2019-06-11 | 宁波致良新能源有限公司 | Positive electrode and preparation method thereof, anode and lithium ion battery |
| CN110649235A (en) * | 2019-09-12 | 2020-01-03 | 江苏容汇通用锂业股份有限公司 | Modification method of nickel-rich ternary cathode material |
| CN111740100A (en) * | 2020-05-25 | 2020-10-02 | 银隆新能源股份有限公司 | Cathode Slurry and Lithium Ion Batteries |
| CN112421009A (en) * | 2020-11-24 | 2021-02-26 | 深圳职业技术学院 | Positive electrode material, method for producing same, and secondary battery |
| CN113380996A (en) * | 2021-05-08 | 2021-09-10 | 江苏锂源电池材料有限公司 | Lithium ferric manganese phosphate coated single crystal quaternary positive electrode material and preparation method thereof |
| CN114132970A (en) * | 2021-11-25 | 2022-03-04 | 蜂巢能源科技有限公司 | Method for improving cycle stability of positive electrode material, positive electrode material and lithium ion battery |
| CN114341060A (en) * | 2019-08-27 | 2022-04-12 | 赢创运营有限公司 | Mixed Lithium Transition Metal Oxides Containing Pyrolytically Prepared Zirconium-Containing Oxides |
| CN114899394A (en) * | 2022-06-29 | 2022-08-12 | 蜂巢能源科技股份有限公司 | Modified lithium iron manganese phosphate cathode material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972499A (en) * | 2014-05-16 | 2014-08-06 | 海宁美达瑞新材料科技有限公司 | Modified nickel-cobalt lithium aluminate positive electrode material and preparation method thereof |
| CN104201374A (en) * | 2014-09-11 | 2014-12-10 | 海宁美达瑞新材料科技有限公司 | High-capacity lithium ion battery cathode material and preparation method thereof |
-
2015
- 2015-01-13 CN CN201510015854.1A patent/CN104577093A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972499A (en) * | 2014-05-16 | 2014-08-06 | 海宁美达瑞新材料科技有限公司 | Modified nickel-cobalt lithium aluminate positive electrode material and preparation method thereof |
| CN104201374A (en) * | 2014-09-11 | 2014-12-10 | 海宁美达瑞新材料科技有限公司 | High-capacity lithium ion battery cathode material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| SB KIM ET AL.: "Preparation and cycle performance at high temperature for Li[Ni0.5Co0.2Mn0.3]O2 coated with LiFePO4", 《JOURNAL OF SOLID STATE ELECTROCHEMISTRY》 * |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299353A (en) * | 2015-06-01 | 2017-01-04 | 龙能科技（苏州）有限公司 | Nickel cobalt lithium aluminate composite and its preparation method and application |
| CN105161705A (en) * | 2015-06-29 | 2015-12-16 | 山东玉皇新能源科技有限公司 | Lithium manganese phosphate-coated nickel-cobalt lithium manganate cathode material and preparation method thereof |
| CN105161705B (en) * | 2015-06-29 | 2018-06-05 | 山东玉皇新能源科技有限公司 | A kind of lithium manganese phosphate cladding nickel-cobalt lithium manganate cathode material and preparation method thereof |
| CN105355880A (en) * | 2015-11-13 | 2016-02-24 | 山东精工电子科技有限公司 | Preparation method of LiFePO4/C modified ternary positive electrode material |
| CN105355880B (en) * | 2015-11-13 | 2018-06-08 | 山东精工电子科技有限公司 | A kind of LiFePO4/ C is modified the preparation method of tertiary cathode material |
| CN105304880A (en) * | 2015-11-27 | 2016-02-03 | 上海空间电源研究所 | Mixed cathode material for lithium-ion battery |
| CN105336944A (en) * | 2015-12-09 | 2016-02-17 | 四川富骅新能源科技有限公司 | High-capacity cathode material for lithium ion batteries and preparation method thereof |
| CN105514373A (en) * | 2016-01-18 | 2016-04-20 | 四川富骅新能源科技有限公司 | Positive electrode material of high-capacity lithium ion battery and preparation method of positive electrode material |
| CN107546388A (en) * | 2016-06-29 | 2018-01-05 | 万向二三股份公司 | A kind of nickel cobalt aluminic acid lithium material for the method and gained for coating nickel cobalt lithium aluminate |
| CN107658432A (en) * | 2016-07-26 | 2018-02-02 | 微宏动力系统（湖州）有限公司 | The preparation method and its positive electrode of modified metal-oxide positive electrode |
| CN106910874A (en) * | 2017-03-03 | 2017-06-30 | 北京理工大学 | A kind of Surface coating Li2TiO3With the high-nickel material and preparation method of top layer doping Ti |
| CN106910874B (en) * | 2017-03-03 | 2019-10-25 | 北京理工大学 | A kind of high-nickel material and preparation method of surface coating Li2TiO3 and surface layer doped Ti |
| CN108630904A (en) * | 2017-03-24 | 2018-10-09 | 中天新兴材料有限公司 | A kind of anode composite material and its preparation method and application |
| CN108630936A (en) * | 2017-03-24 | 2018-10-09 | 中天新兴材料有限公司 | Positive electrode and preparation method thereof |
| CN108630904B (en) * | 2017-03-24 | 2021-01-19 | 中天新兴材料有限公司 | Positive electrode composite material and preparation method and application thereof |
| CN107665983B (en) * | 2017-08-07 | 2021-01-12 | 深圳市德方纳米科技股份有限公司 | Lithium ion battery positive electrode material, preparation method thereof and lithium ion battery |
| CN107665983A (en) * | 2017-08-07 | 2018-02-06 | 深圳市德方纳米科技股份有限公司 | Anode material for lithium-ion batteries and preparation method thereof and lithium ion battery |
| CN109874306A (en) * | 2017-08-18 | 2019-06-11 | 宁波致良新能源有限公司 | Positive electrode and preparation method thereof, anode and lithium ion battery |
| WO2019041788A1 (en) * | 2017-08-28 | 2019-03-07 | 中国科学院宁波材料技术与工程研究所 | Core-shell material |
| CN108172826A (en) * | 2017-12-30 | 2018-06-15 | 国联汽车动力电池研究院有限责任公司 | A method for coating high-nickel ternary materials with lithium iron phosphate nanoparticles |
| CN109390579A (en) * | 2018-06-29 | 2019-02-26 | 福建金山锂科新材料有限公司 | A kind of preparation method of the nickelic tertiary cathode material of dry and wet carbon coating |
| CN114341060A (en) * | 2019-08-27 | 2022-04-12 | 赢创运营有限公司 | Mixed Lithium Transition Metal Oxides Containing Pyrolytically Prepared Zirconium-Containing Oxides |
| CN110649235A (en) * | 2019-09-12 | 2020-01-03 | 江苏容汇通用锂业股份有限公司 | Modification method of nickel-rich ternary cathode material |
| CN111740100A (en) * | 2020-05-25 | 2020-10-02 | 银隆新能源股份有限公司 | Cathode Slurry and Lithium Ion Batteries |
| CN112421009A (en) * | 2020-11-24 | 2021-02-26 | 深圳职业技术学院 | Positive electrode material, method for producing same, and secondary battery |
| CN113380996A (en) * | 2021-05-08 | 2021-09-10 | 江苏锂源电池材料有限公司 | Lithium ferric manganese phosphate coated single crystal quaternary positive electrode material and preparation method thereof |
| CN114132970A (en) * | 2021-11-25 | 2022-03-04 | 蜂巢能源科技有限公司 | Method for improving cycle stability of positive electrode material, positive electrode material and lithium ion battery |
| CN114132970B (en) * | 2021-11-25 | 2023-12-29 | 蜂巢能源科技有限公司 | Method for improving circulation stability of positive electrode material, positive electrode material and lithium ion battery |
| CN114899394A (en) * | 2022-06-29 | 2022-08-12 | 蜂巢能源科技股份有限公司 | Modified lithium iron manganese phosphate cathode material and preparation method and application thereof |
| CN114899394B (en) * | 2022-06-29 | 2023-12-19 | 蜂巢能源科技股份有限公司 | Modified lithium iron manganese phosphate positive electrode material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104577093A (en) | Surface coating modified lithium ion battery cathode material and preparation method thereof | |
| CN103855384B (en) | A kind of ternary cathode material of lithium ion battery of rare-earth-doped modification and preparation method thereof | |
| CN103855387A (en) | Modified lithium ion battery ternary positive electrode material and preparation method thereof | |
| CN103474625B (en) | Novel lithium ion battery anode material coating method with core-shell structure | |
| US20200328406A1 (en) | Layered lithium-rich manganese-based cathode material with olivine structured limpo4 surface modification and preparation method thereof | |
| CN100448772C (en) | High density ultrafine composite ferric lithium phosphate anode material and preparation method | |
| CN105428637B (en) | Lithium ion battery and preparation method of anode material thereof | |
| CN105161705A (en) | Lithium manganese phosphate-coated nickel-cobalt lithium manganate cathode material and preparation method thereof | |
| CN102074682B (en) | Method for preparing high-temperature lithium manganate material for lithium ion power battery | |
| CN105514373A (en) | Positive electrode material of high-capacity lithium ion battery and preparation method of positive electrode material | |
| CN102244236A (en) | Method for preparing lithium-enriched cathodic material of lithium ion battery | |
| CN109473657A (en) | A kind of nickel cobalt aluminium manganese quaternary lithium-ion battery positive electrode material being mixed with, Preparation method and use | |
| CN104953172A (en) | Sodium-ion battery cathode materials, preparation method of sodium-ion battery cathode materials, and sodium-ion batteries | |
| CN101752562B (en) | Compound doped modified lithium ion battery anode material and preparation method thereof | |
| CN113851624B (en) | Composite positive electrode material and preparation method and application thereof | |
| CN103456946A (en) | Anode material for lithium ion battery | |
| CN104810521A (en) | Preparing method of nickel cobalt lithium manganate ternary positive electrode material | |
| CN103390748B (en) | A kind of preparation method of alumina-coated lithium cobaltate cathode material | |
| CN104916837A (en) | Preparation method of aluminum element doped ternary positive electrode material | |
| CN104037404A (en) | Lithium nickel cobalt aluminum oxide and lithium manganese oxide composite material used for lithium ion battery and preparation method thereof | |
| CN103178252B (en) | A kind of anode material for lithium-ion batteries and preparation method thereof | |
| CN104218233A (en) | Composite lithium ion battery positive electrode material with high rate performance and preparation method of material | |
| CN103078099A (en) | Anode material for lithium ion cell and preparation method thereof | |
| CN115763766A (en) | Na2MnPO4F-coated O3-type layered sodium-ion battery cathode material and preparation method thereof | |
| CN105006574A (en) | Surface-modified anode material for lithium ion battery and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |