CN107845802A - A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof - Google Patents
A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof Download PDFInfo
- Publication number
- CN107845802A CN107845802A CN201711173861.XA CN201711173861A CN107845802A CN 107845802 A CN107845802 A CN 107845802A CN 201711173861 A CN201711173861 A CN 201711173861A CN 107845802 A CN107845802 A CN 107845802A
- Authority
- CN
- China
- Prior art keywords
- conducting polymer
- cobalt acid
- acid lithium
- lithium
- preparation
- 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.)
- Granted
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
- H01M4/362—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
- H01M4/52—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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to the preparation method that a kind of conducting polymer for lithium battery coats high voltage type cobalt acid lithium, mainly include the following steps that：(1) high temperature solid state reaction prepares doping cobalt acid lithium；(2) preparation (3) liquid-phase impregnation process cladding processing of conducting polymer dispersion liquid；At least one of wherein described cobalt acid lithium incorporation Al, Mg, Ti, Gr, for the concentration of each doped chemical in 500 5000ppm, the conductive polymer coating is one kind in polyaniline, polypyrrole, polythiophene；Material obtained by this method has sufficiently stable crystal structure, can be in 4.35V 4.60V (vs Li+/ Li) there is good capacity under voltage, while there is good cyclicity, and it is easy to implement industrialized production.
Description
Technical field
The invention belongs to anode material for lithium-ion batteries technical field, more particularly to a kind of conducting polymer for lithium battery
Thing cladding cobalt acid lithium and preparation method thereof.
Background technology
Lithium ion battery long lifespan, pollutes the features such as few, among our life extensively with its memory-less effect
Ground application, it is deep into mobile electronic device and hybrid vehicle every field.One of ripe lithium electric material of commercialization at present
The features such as cobalt acid lithium is because its compacted density is big, platform voltage height, and capacity is big, is most widely used in 3C digital products
Lithium electric material.The theoretical capacity of cobalt acid lithium is up to 274mAh/g, and traditional cobalt acid lithium is in 3.0V-4.2V (vs Li+/ Li) under, hair
The capacity waved only has about 158mhA/g.With the increase of electronic equipment performance requirement, requirement to battery capacity also more and more higher,
Wish to more play the capacity of cobalt acid lithium.The way of main flow is exactly to improve charging voltage, makes more lithiums embedding de-, but greatly
After amount loses Li, crystalline structure can become unstable, and irreversible transition occurs so that cycle life greatly reduces, and in high electricity
The side reactions such as pressure material is with that can occur Co dissolvings at electrolyte interface, electrolyte is oxidized, further reduce material lifetime.
In order to solve this problem, presently mainly carried out in terms of improving structural stability and reducing interface side reaction two
Design.By the doping of the elements such as magnesium, aluminium, zirconium, titanium, the lifetime stability of cobalt acid lithium, but doped chemical amount at present can be improved
Usual larger (27%-35% as described in the A of patent document CN 104538599), due to the doping member without storage lithium activity
Element amount is big, often causes more capacitance loss.In terms of interface processing, using metal oxides such as aluminum oxide, magnesia
Coated, but this kind of metal conductive oxide is poor, and it is same active without storage lithium, inevitably reduce the appearance of material
The performance of amount and multiplying power.
And conducting polymer is the covering material of a kind of excellent performance, its outstanding chemical stability, protection can be played
The effect of material interface, its good ductility can slow down the bulk effect in charge and discharge process as buffer matrix, and its is good
Good electric conductivity can promote the migration of lithium ion.Domestic also someone is coated using such material to lithium electric material, such as specially
The sharp A of document CN 104600314, cladding processing is carried out to nickel ion doped using situ aggregation method, but this kind of method is more complicated,
Cost is higher, and industrialization difficulty is big.
The content of the invention
The problem of existing for prior art, it is an object of the invention to provide a kind of conducting polymer bag for lithium battery
Cover cobalt acid lithium and preparation method thereof.
To achieve these goals, the present invention uses following technical scheme：
A kind of conducting polymer for lithium battery coats the preparation method of high voltage type cobalt acid lithium, comprises the following steps：
1) using lithium carbonate, cobaltosic oxide as primary raw material, using metal oxide as auxiliary material, mixed in batch mixer equal
It is even, then carry out solid phase pyroreaction, after the completion of reaction through pulverizing and sieving processing obtain adulterate cobalt acid lithium；
2) micro/nano level conducting polymer powder is scattered in ethanol, uniform conducting polymer ethanol is made and disperses
Liquid；
3) the obtained doping cobalt acid lithium of step 1 is added into conducting polymer alcohol dispersion liquid made from step 2, stirred
After reaction, drying, then it is heat-treated, grinding sieving, produces the cobalt acid lithium of conducting polymer cladding.
Preferably, the metal oxide is selected from least one of magnesia, aluminum oxide, titanium dioxide, zirconium oxide.
Preferably, the one kind of the conducting polymer powder in polyaniline, polypyrrole, polythiophene, it is in discharge and recharge
During rise and improve electric conductivity, reduce side reaction, the sustained release effect such as Volume Changes.
It is further preferred that the particle size range that the conducting polymer powder is is.
Preferably, primary raw material mass ratio Li by elements：Co=1.02-1.09.
Preferably, in the doping cobalt acid lithium, the concentration of each doped chemical is 500-5000ppm.
Preferably, the conducting polymer alcohol dispersion liquid concentration is 0.005-0.05g/ml.
Preferably, in the cobalt acid lithium of conducting polymer cladding, the quality of the conducting polymer is conducting polymer
The 1%-8% of the cobalt acid lithium gross mass of thing cladding.
Preferably, the temperature of solid phase pyroreaction is 850-1100 DEG C in step (1), time 6-12h.
Preferably, in step (3), mixing speed is 250~500r/min, mixing time 10-120min.It is preferred that
Ground, in step (3), the heat treatment is that 1-4 hours are handled in 100-200 DEG C of baking oven.
A kind of cobalt acid lithium of conducting polymer cladding, is prepared by above-mentioned preparation method.
Preferably, the particle diameter D50 of the cobalt acid lithium of the conducting polymer cladding is 6~21um, specific surface area 0.15m2/
G~0.55m2/ g, tap density >=2.5g/cm3, the charge cutoff voltage of adaptation is 4.35~4.60V (vs Li+/Li)。
Beneficial effects of the present invention：
(1) amount of institute's doped chemical of the present invention is few, on the premise of enhancing structure stability, the gram volume loss of cobalt acid lithium
It is few；
(2) clad of the present invention is conducting polymer, and its outstanding chemical stability can play protected material
Expect the effect at interface, its good ductility can slow down the bulk effect in charge and discharge process as buffer matrix, and its is good
Electric conductivity can promote the migration of lithium ion；
(3) present invention from of both structural stability and interface stability by designing, the final circulation for causing material
Life-span significantly improves and possessed higher gram volume；
(4) present invention is coated using liquid phase wet method, and its clad coats evenly, be thinner than mechanical mixture, technique ratio
Situ aggregation method is simpler, and cost is low, is easy to implement industrialization.
Brief description of the drawings
Fig. 1 is the XRD spectra of the cobalt acid lithium of polyaniline-coated degree 2% prepared by embodiment 1；
Fig. 2 is before and after the cobalt acid lithium of polyaniline-coated degree 2% prepared by embodiment 1 is adulterated under 4.55V and before and after cladding
Cycle life performance contrasts under 1C electric currents；
Fig. 3 is before and after the cobalt acid lithium of polyaniline-coated degree 2% prepared by embodiment 1 is adulterated under 4.50V and before and after cladding
Cycle life performance contrasts under 1C electric currents.
Embodiment
For a further understanding of the present invention, it is more comprehensively careful that the present invention is carried out with preferred embodiment below in conjunction with the accompanying drawings
Illustrate, but protection scope of the present invention is not limited by the following examples.
Do not mentionlet alone bright except peculiar, the various reagents used, raw material are the electricity that can directly buy from the market in the present invention
Pond level or technical grade commodity.
Embodiment 1
500g cobaltosic oxides, 240g lithium carbonates, 1.5g magnesia, 1g titanium oxide, 2.5g aluminum oxide are sufficiently stirred mixed
Close, high temperature solid state reaction 12h is then carried out at 980 DEG C, obtains bulk product, finally obtain powder by pulverizing and sieving processing
State adulterates cobalt acid lithium.
2) 5g micro/nano level powdered form polyanilines are taken to be scattered in by being ultrasonically treated in 500mL ethanol, concentration, which is made, is
0.01g/ml homogeneous conductive polymer alcohol dispersion liquid.
3) 250g steps 1 gained cobalt acid lithium is added into above-mentioned 500ml conducting polymers alcohol dispersion liquid, continues fully to stir
Mix 25min, gained slurry be placed in baking oven at 60 DEG C and dried, finally in an oven 120 DEG C carry out heat treatment 2 hours, grinding
Sieving, it is high voltage type cobalt acid lithium to produce polyaniline-coated degree 2%.
Above-mentioned products obtained therefrom is taken to carry out powder diffraction XRD tests, as a result as shown in Figure 1, it can be seen that not produce new
Phase or dephasign, illustrate by the way that after cladding or doping, cobalt acid lithium can retain the crystal structure of its original well.
Comparative example 1
500g cobaltosic oxides, 240g lithium carbonates, 1.5g magnesia, 1g titanium oxide, 2.5g aluminum oxide are sufficiently stirred mixed
Close, high temperature solid state reaction 12h is then carried out at 980 DEG C, obtains bulk product, finally obtain powder by pulverizing and sieving processing
State adulterates cobalt acid lithium.
Comparative example 2
500g cobaltosic oxides, 240g lithium carbonates are thoroughly mixed, high temperature solid state reaction is then carried out at 980 DEG C
12h, bulk product is obtained, finally obtain the undoped cobalt acid lithium of powdered form by pulverizing and sieving to handle.
The cycle performance of material is tested according to following methods：By the cobalt acid lithium material of gained and conductive agent acetylene black
With binding agent PVDF according to 9:0.5:0.5 mass ratio is mixed in NMP in 15ml, is sufficiently stirred to form slurry, then passes through painting
Cover machine and be coated in aluminium foil surface, suitable size is cut into after drying, using lithium piece as negative pole, lithium hexafluorophosphate solution is electrolyte,
Button cell is assembled into the glove box that argon gas is protected using 2032 type button cell shells, is carried out at 45 DEG C, under 1C electric currents
High temperature circulation is tested.
According to above-mentioned method of testing, embodiment 1, comparative example 1 and comparative example 2 are carried out in 3.0V-4.55V voltage ranges
Test.As a result as shown in Fig. 2 comparative example 2 does not coat sample to undope, in the high temperature circulation of 40 weeks, gram volume retention rate
For 18%, being adulterated in comparative example 1 and do not coat sample, gram volume retention rate is 53%, and is mixed with sample in embodiment 1,
Gram volume retention rate is 81%.Illustrate that the cycle performance of material is greatly improved, and three exists by doping and cladding
The capacity that first lap plays under 1C electric currents is 180-190mAh/g.
Embodiment 2
500g cobaltosic oxides, 250g lithium carbonates, 1.0g magnesia, 1g titanium oxide, 1.5g aluminum oxide are sufficiently stirred mixed
Close, high temperature solid state reaction 12h is then carried out at 1020 DEG C, obtains bulk product, finally obtain powder by pulverizing and sieving processing
Final states adulterates cobalt acid lithium.
2) 4g micro/nano level powdered form polyanilines are taken to be scattered in by being ultrasonically treated in 500mL ethanol, concentration, which is made, is
0.008g/ml homogeneous conductive polymer alcohol dispersion liquid.
3) 250g steps 1 gained cobalt acid lithium is added into above-mentioned 500ml conducting polymers alcohol dispersion liquid, continues fully to stir
Mix 30min, gained slurry be placed in baking oven at 60 DEG C and dried, finally in an oven 120 DEG C carry out heat treatment 2 hours, grinding
Sieving, it is high voltage type cobalt acid lithium to produce conducting polymer coverage degree 1.6%.
Comparative example 3
500g cobaltosic oxides, 250g lithium carbonates, 1.0g magnesia, 1g titanium oxide, 1.5g aluminum oxide are sufficiently stirred mixed
Close, high temperature solid state reaction 12h is then carried out at 1020 DEG C, obtains bulk product, finally obtain powder by pulverizing and sieving processing
Final states adulterates cobalt acid lithium.
Comparative example 4
500g cobaltosic oxides, 250g lithium carbonates are thoroughly mixed, it is anti-that high temperature solid-state is then carried out at 1020 DEG C
Answer 12h, obtain bulk product, finally through pulverizing and sieving processing obtain powdered form doping cobalt acid lithium.
According to above-mentioned method of testing, embodiment 1, comparative example 1 and comparative example 2 are carried out in 3.0V-4.50V voltage ranges
Test.As a result as shown in figure 3, comparative example 4 does not coat sample to undope, in the high temperature circulation of 40 weeks, gram volume retention rate
For 49%, comparative example 3 does not coat sample for doping, and gram volume retention rate is 74%, and is mixed with sample in embodiment 1,
Gram volume retention rate is 92%.Illustrate to be greatly improved by doping and cladding, the cycle performance of material.And three exists
The capacity that first lap plays under 1C electric currents is 180-190mAh/g.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of conducting polymer for lithium battery coats the preparation method of high voltage type cobalt acid lithium, it is characterised in that including
Following steps：
1) using lithium carbonate, cobaltosic oxide as primary raw material, using metal oxide as auxiliary material, it is well mixed in batch mixer, so
Afterwards carry out solid phase pyroreaction, after the completion of reaction through pulverizing and sieving processing obtain adulterate cobalt acid lithium；
2) conducting polymer powder is scattered in ethanol, uniform conducting polymer alcohol dispersion liquid is made；
3) the obtained doping cobalt acid lithium of step 1 is added into conducting polymer alcohol dispersion liquid made from step 2, stirring reaction
Afterwards, dry, be then heat-treated, grinding sieving, produce the cobalt acid lithium that conducting polymer coats.
2. the conducting polymer according to claim 1 for lithium battery coats the preparation method of high voltage type cobalt acid lithium,
Characterized in that, the metal oxide is selected from least one of magnesia, aluminum oxide, titanium dioxide, zirconium oxide.
3. the conducting polymer according to claim 1 for lithium battery coats the preparation method of high voltage type cobalt acid lithium,
Characterized in that, the one kind of the conducting polymer powder in polyaniline, polypyrrole, polythiophene.
4. the conducting polymer according to claim 1 for lithium battery coats the preparation method of high voltage type cobalt acid lithium,
Characterized in that, primary raw material mass ratio Li by elements：Co=1.02-1.09.
5. the conducting polymer according to claim 1 or 2 for lithium battery coats the preparation side of high voltage type cobalt acid lithium
Method, it is characterised in that in the doping cobalt acid lithium, the concentration of each doped chemical is 500-5000ppm.
6. the conducting polymer for lithium battery according to claim 1 or 3 coats the preparation side of high voltage type cobalt acid lithium
Method, it is characterised in that the conducting polymer alcohol dispersion liquid concentration is 0.005-0.05g/ml.
7. the conducting polymer according to claim 1 for lithium battery coats the preparation method of high voltage type cobalt acid lithium,
Characterized in that, in the cobalt acid lithium of conducting polymer cladding, the quality of the conducting polymer is conducting polymer bag
The 1%-8% for the cobalt acid lithium gross mass covered.
8. the conducting polymer according to claim 1 for lithium battery coats the preparation method of high voltage type cobalt acid lithium,
Characterized in that, in step (3), mixing speed is 250~500r/min, mixing time 10-120min；The heat treatment
To handle 1-4 hours in 100-200 DEG C of baking oven.
9. a kind of cobalt acid lithium of conducting polymer cladding, it is characterised in that by any one of claim 1-8 preparation method system
It is standby to obtain.
10. the cobalt acid lithium of conducting polymer cladding according to claim 9, it is characterised in that the conducting polymer bag
The particle diameter D50 for the cobalt acid lithium covered is 6~21um, specific surface area 0.15m2/ g~0.55m2/ g, tap density >=2.5g/cm3,
The charge cutoff voltage of adaptation is 4.35~4.60V (vs Li+/Li)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173861.XA CN107845802B (en) | 2017-11-22 | 2017-11-22 | A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173861.XA CN107845802B (en) | 2017-11-22 | 2017-11-22 | A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107845802A true CN107845802A (en) | 2018-03-27 |
| CN107845802B CN107845802B (en) | 2018-10-19 |
Family
ID=61680132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711173861.XA Active CN107845802B (en) | 2017-11-22 | 2017-11-22 | A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107845802B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037604A (en) * | 2018-06-13 | 2018-12-18 | 福建翔丰华新能源材料有限公司 | A kind of preparation method of polyaniline-coated lithium titanate anode material |
| CN110391414A (en) * | 2019-06-19 | 2019-10-29 | 重庆市维都利新能源有限公司 | A kind of high energy density polymer lithium ion battery and preparation method thereof |
| CN111477856A (en) * | 2020-04-26 | 2020-07-31 | 河北省科学院能源研究所 | Nickel-based positive electrode material and preparation method thereof |
| CN111825124A (en) * | 2020-06-10 | 2020-10-27 | 昆明理工大学 | Method for preparing high-voltage anode material by surface modification and regeneration of waste lithium cobaltate material |
| CN112234203A (en) * | 2020-10-15 | 2021-01-15 | 光鼎铷业(广州)集团有限公司 | Conductive polymer coated rubidium-doped high-nickel ternary lithium battery positive electrode material and preparation method thereof |
| CN114937766A (en) * | 2022-05-31 | 2022-08-23 | 济宁学院 | Preparation method of transition metal doped poly (m-phenylenediamine) -coated positive electrode material |
| CN115020672A (en) * | 2022-06-30 | 2022-09-06 | 广东邦普循环科技有限公司 | Lithium cobaltate positive electrode material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522563A (en) * | 2011-12-30 | 2012-06-27 | 中国科学院广州能源研究所 | Conducting-polymer dipped and coated lithium-ion battery composite-electrode material and preparation method thereof |
| CN104659335A (en) * | 2014-12-09 | 2015-05-27 | 江波 | Preparation method for lithium ion battery positive electrode material |
-
2017
- 2017-11-22 CN CN201711173861.XA patent/CN107845802B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522563A (en) * | 2011-12-30 | 2012-06-27 | 中国科学院广州能源研究所 | Conducting-polymer dipped and coated lithium-ion battery composite-electrode material and preparation method thereof |
| CN104659335A (en) * | 2014-12-09 | 2015-05-27 | 江波 | Preparation method for lithium ion battery positive electrode material |
Non-Patent Citations (1)
| Title |
|---|
| JINGCHAO CAO等: "Polypyrrole-coated LiCoO2 nanocomposite with enhanced electrochemical properties at high voltage for lithium-ion batteries", 《JOURNAL OF POWER SOURCES》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037604A (en) * | 2018-06-13 | 2018-12-18 | 福建翔丰华新能源材料有限公司 | A kind of preparation method of polyaniline-coated lithium titanate anode material |
| CN110391414A (en) * | 2019-06-19 | 2019-10-29 | 重庆市维都利新能源有限公司 | A kind of high energy density polymer lithium ion battery and preparation method thereof |
| CN111477856A (en) * | 2020-04-26 | 2020-07-31 | 河北省科学院能源研究所 | Nickel-based positive electrode material and preparation method thereof |
| CN111477856B (en) * | 2020-04-26 | 2023-05-05 | 河北省科学院能源研究所 | Nickel-based positive electrode material and preparation method thereof |
| CN111825124A (en) * | 2020-06-10 | 2020-10-27 | 昆明理工大学 | Method for preparing high-voltage anode material by surface modification and regeneration of waste lithium cobaltate material |
| CN111825124B (en) * | 2020-06-10 | 2022-02-15 | 昆明理工大学 | Method for preparing high-voltage anode material by surface modification and regeneration of waste lithium cobaltate material |
| CN112234203A (en) * | 2020-10-15 | 2021-01-15 | 光鼎铷业(广州)集团有限公司 | Conductive polymer coated rubidium-doped high-nickel ternary lithium battery positive electrode material and preparation method thereof |
| CN114937766A (en) * | 2022-05-31 | 2022-08-23 | 济宁学院 | Preparation method of transition metal doped poly (m-phenylenediamine) -coated positive electrode material |
| CN114937766B (en) * | 2022-05-31 | 2023-10-31 | 济宁学院 | Preparation method of transition metal doped poly (m-phenylenediamine) coated positive electrode material |
| CN115020672A (en) * | 2022-06-30 | 2022-09-06 | 广东邦普循环科技有限公司 | Lithium cobaltate positive electrode material and preparation method and application thereof |
| WO2024000899A1 (en) * | 2022-06-30 | 2024-01-04 | 广东邦普循环科技有限公司 | Lithium cobalt oxide positive electrode material, preparation method therefor and use thereof |
| CN115020672B (en) * | 2022-06-30 | 2024-03-12 | 广东邦普循环科技有限公司 | Lithium cobalt oxide positive electrode material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107845802B (en) | 2018-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107845802B (en) | A kind of conducting polymer for lithium battery coats cobalt acid lithium and preparation method thereof | |
| Li et al. | Sphere-like SnO2/TiO2 composites as high-performance anodes for lithium ion batteries | |
| Feng et al. | An investigation of polypyrrole–LiV3O8 composite cathode materials for lithium-ion batteries | |
| CN106450265B (en) | A kind of situ Nitrogen Doping carbon coating lithium titanate combination electrode material and preparation method thereof | |
| CN107482182B (en) | Carbon-coated ion-doped manganese phosphate lithium electrode material and preparation method thereof | |
| CN104733708B (en) | Preparation method of lithium nickel cobalt manganese oxide composite material with surface coated with lithium iron phosphate | |
| CN101478039B (en) | Preparation for polypyrole coated lithium iron phosphate | |
| CN101901932A (en) | Quick-chargeable, high-security and high-multiplying-power battery and production method thereof | |
| CN103904307A (en) | Silicon-carbon composite material, preparation method and application thereof | |
| CN101308926B (en) | Lithium ionic cell composite positive pole material coated by orthosilicate and its preparation method | |
| CN103928668B (en) | Lithium ion battery and preparation method of anode material thereof | |
| Kang et al. | Design of Nb2O5@ rGO composites to optimize the lithium-ion storage performance | |
| Takami et al. | Micro-size spherical TiO2 (B) secondary particles as anode materials for high-power and long-life lithium-ion batteries | |
| CN105226267B (en) | Three dimensional carbon nanotubes modification spinel nickel lithium manganate material and its preparation method and application | |
| Shen et al. | Enhanced electrochemical performance of lithium iron (II) phosphate modified cooperatively via chemically reduced graphene oxide and polyaniline | |
| Zhou et al. | Synthesis and electrochemical properties of LiAl0. 05Mn1. 95O4 by the ultrasonic assisted rheological phase method | |
| CN100383037C (en) | Carbon material and nano silicon composite materials and method for preparing same and use thereof | |
| CN102237517A (en) | Lithium ion battery, cathode composite material and preparation methods thereof | |
| CN101593825B (en) | Negative pole made of nanometer antimony/graphite nanosheet composite material of lithium ion battery and preparation method thereof | |
| CN110429257A (en) | A kind of lithium-ion battery silicon-carbon anode material and preparation method thereof | |
| JP2016033854A (en) | Positive electrode active material for nonaqueous electrolyte secondary battery | |
| CN106935830A (en) | A kind of lithium ion battery composite cathode material and its preparation method and application | |
| CN114604896B (en) | MXene composite modified binary manganese-based sodium electro-precursor and preparation method thereof | |
| CN1183615C (en) | Method of synthesizing LiCo1-xMxO2 as positive electrode material for lithium ion accmulator | |
| CN103311521A (en) | Surface-modified graphite negative electrode material, and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180327 Assignee: Zhongguancun Technology Leasing Co.,Ltd. Assignor: JIANGMEN KANHOO INDUSTRY Co.,Ltd. Contract record no.: X2022980016573 Denomination of invention: Conductive polymer coated lithium cobalate for lithium battery and its preparation method Granted publication date: 20181019 License type: Exclusive License Record date: 20220926 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Conductive polymer coated lithium cobalate for lithium battery and its preparation method Effective date of registration: 20220927 Granted publication date: 20181019 Pledgee: Zhongguancun Technology Leasing Co.,Ltd. Pledgor: JIANGMEN KANHOO INDUSTRY Co.,Ltd. Registration number: Y2022980016721 |