CN108117056A - The preparation method of graphene coated plasma modification carbonaceous mesophase spherules - Google Patents
The preparation method of graphene coated plasma modification carbonaceous mesophase spherules Download PDFInfo
- Publication number
- CN108117056A CN108117056A CN201711306133.1A CN201711306133A CN108117056A CN 108117056 A CN108117056 A CN 108117056A CN 201711306133 A CN201711306133 A CN 201711306133A CN 108117056 A CN108117056 A CN 108117056A
- Authority
- CN
- China
- Prior art keywords
- carbonaceous mesophase
- mesophase spherules
- graphene
- preparation
- plasma
- 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
- H01M4/364—Composites as mixtures
-
- 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
- H01M4/58—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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- 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)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A kind of preparation method of graphene coated plasma modification carbonaceous mesophase spherules, is modified carbonaceous mesophase spherules using plasma, makes its surface rich in functional group, then by graphene oxide and modified carbonaceous mesophase spherules according to 5:1~1:100 mass ratio progress is compound, and graphene/carbonaceous mesophase spherules composite material is obtained after thermal reduction.The composite material that the present invention is prepared has stable structure and excellent chemical property, and preparation method is compared with other methods, and free from admixture introduces, easy to operate, process cleans, is conducive to the further commercial applications of carbonaceous mesophase spherules.
Description
Technical field
The present invention relates to a kind of technologies of lithium battery manufacturing field, are specifically a kind of graphene coated plasma structural reform
The preparation method of property carbonaceous mesophase spherules.
Background technology
Carbonaceous mesophase spherules are that a kind of succeed graphite-like of commercial applications of early stage of lithium ion battery development is born
Pole material, it is still commonly used in lithium ion battery negative material so far.However, emerging in large numbers with intelligent electronic product, people
Higher requirement is proposed to the high rate performance and cyclical stability that further improve carbonaceous mesophase spherules.
The content of the invention
The present invention proposes a kind of graphene coated plasma modification interphase for deficiencies of the prior art
The preparation method of carbosphere, the present invention is easy to operate, and no any impurity introduces, by the use of material prepared by this method as lithium ion
During battery cathode, there are high specific capacity, preferable high rate performance and cycle performance, there is further commercialized application prospect.
The present invention is achieved by the following technical solutions：
The present invention relates to a kind of preparation method of graphene coated plasma modification carbonaceous mesophase spherules, by centre
Phase carbosphere carries out plasma modification processing, the carbonaceous mesophase spherules that surface is rich in functional group is obtained, then by graphite oxide
Alkene and modified carbonaceous mesophase spherules are compound, and graphene/carbonaceous mesophase spherules composite material is obtained after thermal reduction.
The carbonaceous mesophase spherules are conventional commercial carbon balls, wherein：D10：3~5 μm；D50：11~15 μm；D90：20
~30 μm, fixed carbon content≤99.95%.
The plasma modification processing is under particular atmosphere (oxygen, argon gas, nitrogen), in plasma apparatus
Handle 20s~2h.
The preparation, which refers to carbonaceous mesophase spherules being placed in oxygen plasma apparatus, to be handled, then by graphene oxide
Aqueous solution is dried in vacuo 12h according to certain mass with modified carbonaceous mesophase spherules aqueous solution than 1~5h, revolving is mixed,
900 DEG C of annealing (5% is hydrogen-argon-mixed) 1-5h.
The graphene oxide and the mass ratio of carbonaceous mesophase spherules are 5:1~1:100.
The present invention relates to a kind of using carbonaceous mesophase spherules as the lithium ion battery of cathode, including：Cathode, to electrode, membrane
And electrolyte.
The cathode, will treated carbonaceous mesophase spherules, conductive charcoal with N-Methyl pyrrolidone (NMP) for solvent
The mixing of black and Kynoar (PVDF) is stirred into muddy and is made coated on copper foil surface and after drying, wherein：N- first
The mass ratio of base pyrrolidones (NMP), conductive black and Kynoar (PVDF) is preferably 80:10:10.
Described uses lithium metal to electrode.
The membrane, using capillary polypropylene (Celgard2300) film.
The electrolyte, by lithium hexafluoro phosphate (LiPF6)/ethylene carbonate (EC), diethyl carbonate (DEC), carbonic acid
Methylethyl ester (EMC) is mixed, and component and content are preferably：1mol/L LiPF6/ EC+DEC+EMC using volume ratio as
1:1:1 mixing.
The battery is assembled in the glove box full of high-purity argon gas and obtained.
Technique effect
Compared with prior art, for carbonaceous mesophase spherules of the present invention after corona treatment, surface functional group quantity is bright
It is aobvious to increase, be conducive to the compound of itself and graphene oxide, this method is easy to operate, without introducing any impurity, without using volume
Outer oxidant, reducing agent, surfactant etc..
Description of the drawings
Fig. 1 is the field emission scanning electron microscope figure of carbonaceous mesophase spherules in example 1；
Fig. 2 is the field emission scanning electron microscope figure of 1 graphene coated plasma modification carbonaceous mesophase spherules of example；
Fig. 3 is the charging and discharging graph for the simulated battery that carbonaceous mesophase spherules are prepared as negative material；
Fig. 4 is to use what graphene coated plasma modification carbonaceous mesophase spherules were prepared as negative material in example 1
The charging and discharging graph of simulated battery.
Specific embodiment
Embodiment 1
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in oxygen plasma processing equipment
20s is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 2mg graphene oxides are added in 20mL deionized waters,
30min is stirred, then ultrasound 30min, finally mixes with the carbonaceous mesophase spherules solution after stirring, then stir 5h, and revolving is put
The dry 12h in vacuum drying chamber, finally anneal (5% is hydrogen-argon-mixed) 1h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Embodiment 2
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in oxygen plasma processing equipment
7min is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 40mg graphite oxides are added in 40mL deionized waters
Alkene stirs 30min, and then ultrasound 30min, finally mixes with the carbonaceous mesophase spherules solution after stirring, then stir 4h, rotation
It steams, is placed in vacuum drying chamber dry 12h, finally anneal (5% is hydrogen-argon-mixed) 2h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Embodiment 3
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in argon plasma processing equipment
120min is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 40mg graphite oxides are added in 40mL deionized waters
Alkene stirs 30min, and then ultrasound 30min, finally mixes with the carbonaceous mesophase spherules solution after stirring, then stir 3h, rotation
It steams, is placed in vacuum drying chamber dry 12h, finally anneal (5% is hydrogen-argon-mixed) 3h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Embodiment 4
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in nitrogen plasma treatment equipment
7min is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 1000mg oxidation stones are added in 1000mL deionized waters
Black alkene stirs 30min, and then ultrasound 30min, finally mixes with the carbonaceous mesophase spherules solution after stirring, then stir 2h, so
Mixed liquor is rotated afterwards, is placed in vacuum drying chamber dry 12h, finally anneal (5% is hydrogen-argon-mixed) 4h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Embodiment 5
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in nitrogen plasma treatment equipment
7min is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 2mg graphene oxides are added in 2mL deionized waters,
30min is stirred, then ultrasound 30min, finally mixes with the carbonaceous mesophase spherules solution after stirring, then stir 1h, and revolving is put
The dry 12h in vacuum drying chamber, finally anneal (5% is hydrogen-argon-mixed) 5h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Embodiment 6
The present embodiment comprises the following steps：The carbonaceous mesophase spherules of 200mg are placed in nitrogen plasma treatment equipment
2h is managed, is added in after taking-up in 200mL deionized waters, stirs 30min, 2mg graphene oxides are added in 2mL deionized waters, are stirred
30min is mixed, then ultrasound 30min, finally mixed with the carbonaceous mesophase spherules solution after stirring, then stir 1h, rotated, be placed in
Dry 12h in vacuum drying chamber, finally anneal (5% is hydrogen-argon-mixed) 3h at 900 DEG C.
With N-Methyl pyrrolidone (NMP) for solvent, in mass ratio 80:10:10, will treated carbonaceous mesophase spherules,
Conductive black and Kynoar (PVDF) mixing, are stirred into muddy coated on copper foil surface, are then dried in vacuo
The negative plate of a diameter of 10mm is made in 12h, tabletting.With lithium metal as reference to electrode, with capillary polypropylene
(Celgard2300) film is membrane, with 1mol/L LiPF6/ EC+DEC+EMC (volume ratios 1:1:1) it is electrolyte.Full of
In the glove box of high-purity argon gas, 2025 button cells are assembled into.Electrochemical property test is carried out after standing 12h.
Simulated battery carries out charge-discharge performance test using blue electric battery test system (LAND CT -2001A).With difference
Discharge current density (0.1,0.2,0.5,1,2,5,10A/g), to treated carbonaceous mesophase spherules in 0~3V voltage ranges
Sample carries out charge-discharge performance test.
Above-mentioned specific implementation can by those skilled in the art on the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (8)
1. a kind of preparation method of graphene coated plasma modification carbonaceous mesophase spherules, which is characterized in that utilize plasma
Body is modified carbonaceous mesophase spherules, makes its surface rich in functional group, then by graphene oxide and modified interphase
Carbosphere is according to 5:1~1:100 mass ratio progress is compound, and graphene/carbonaceous mesophase spherules composite material is obtained after thermal reduction.
2. preparation method according to claim 1, it is characterized in that, the plasma includes：Oxygen plasma, nitrogen etc.
Gas ions and argon plasma.
3. preparation method according to claim 1, it is characterized in that, the modification, the time is 20s~2h.
4. preparation method according to claim 1, it is characterized in that, the cladding refer to by graphene oxide water solution with
1~5h is mixed in carbonaceous mesophase spherules aqueous solution, and revolving is dried in vacuo 12h, with 900 DEG C under 5% hydrogen-argon-mixed environment
Anneal 1~5h.
5. a kind of lithium ion battery negative material, feature exist, it is prepared according to any of the above-described claim the method.
It is 6. a kind of using carbonaceous mesophase spherules as the lithium ion battery of cathode, which is characterized in that including：Cathode, to electrode, membrane with
And electrolyte, wherein cathode by N-Methyl pyrrolidone, according to graphene/mesocarbon described in any of the above-described claim
Microballoon composite material, conductive black and Kynoar composition.
7. it is according to claim 7 using carbonaceous mesophase spherules as the lithium ion battery of cathode, it is characterized in that, described is negative
Pole, using N-Methyl pyrrolidone as solvent, by graphene/carbonaceous mesophase spherules composite material, conductive black and Kynoar
Mixing is stirred into muddy and is made coated on copper foil surface and after drying, wherein：N-Methyl pyrrolidone, conductive black
Mass ratio with Kynoar is 80:10:10.
8. it is described using carbonaceous mesophase spherules as the lithium ion battery of cathode according to claim 7, it is characterized in that, it is described
Electrolyte is mixed by lithium hexafluoro phosphate/ethylene carbonate, diethyl carbonate, methyl ethyl ester, and content is every
LiPF6/EC+DEC+EMC is using volume ratio as 1 in mol/L:1:1 mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306133.1A CN108117056B (en) | 2017-12-11 | 2017-12-11 | Preparation method of graphene-coated plasma modified mesocarbon microbeads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711306133.1A CN108117056B (en) | 2017-12-11 | 2017-12-11 | Preparation method of graphene-coated plasma modified mesocarbon microbeads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108117056A true CN108117056A (en) | 2018-06-05 |
| CN108117056B CN108117056B (en) | 2021-07-16 |
Family
ID=62229097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711306133.1A Active CN108117056B (en) | 2017-12-11 | 2017-12-11 | Preparation method of graphene-coated plasma modified mesocarbon microbeads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108117056B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581275A (en) * | 2018-06-07 | 2019-12-17 | 山东欧铂新材料有限公司 | Graphene/soft carbon negative electrode material of lithium ion battery, preparation method of graphene/soft carbon negative electrode material and lithium ion battery |
| CN116536629A (en) * | 2023-04-19 | 2023-08-04 | 青岛新泰和纳米科技有限公司 | Mesophase carbon microsphere-silicon carbon composite material and preparation method thereof |
| CN116666639A (en) * | 2023-08-02 | 2023-08-29 | 天津力神电池股份有限公司 | Hard carbon electrode material, preparation method thereof and battery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651227A (en) * | 2009-08-31 | 2010-02-17 | 山东神工电池新科技有限公司 | High lifetime water-soluble lithium battery and preparation process thereof |
| CN102412396A (en) * | 2011-11-11 | 2012-04-11 | 深圳市德方纳米科技有限公司 | Lithium ion battery electrode material coated with non-continuous graphene |
| CN102862973A (en) * | 2012-08-16 | 2013-01-09 | 广东东岛新能源股份有限公司 | Method for preparing negative electrode material of lithium ion battery from mesophase carbon micro beads |
| CN103896260A (en) * | 2012-12-28 | 2014-07-02 | 新昌县冠阳技术开发有限公司 | Preparation method of graphene based lithium ion battery composite negative electrode material |
| CN104310369A (en) * | 2014-09-28 | 2015-01-28 | 苏州长盛机电有限公司 | Preparation method of porous carbon for super capacitor |
| CN105591109A (en) * | 2014-11-14 | 2016-05-18 | 青岛灵科新能源有限公司 | Carbon material, preparation method thereof, and lithium ion battery |
-
2017
- 2017-12-11 CN CN201711306133.1A patent/CN108117056B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651227A (en) * | 2009-08-31 | 2010-02-17 | 山东神工电池新科技有限公司 | High lifetime water-soluble lithium battery and preparation process thereof |
| CN102412396A (en) * | 2011-11-11 | 2012-04-11 | 深圳市德方纳米科技有限公司 | Lithium ion battery electrode material coated with non-continuous graphene |
| CN102862973A (en) * | 2012-08-16 | 2013-01-09 | 广东东岛新能源股份有限公司 | Method for preparing negative electrode material of lithium ion battery from mesophase carbon micro beads |
| CN103896260A (en) * | 2012-12-28 | 2014-07-02 | 新昌县冠阳技术开发有限公司 | Preparation method of graphene based lithium ion battery composite negative electrode material |
| CN104310369A (en) * | 2014-09-28 | 2015-01-28 | 苏州长盛机电有限公司 | Preparation method of porous carbon for super capacitor |
| CN105591109A (en) * | 2014-11-14 | 2016-05-18 | 青岛灵科新能源有限公司 | Carbon material, preparation method thereof, and lithium ion battery |
Non-Patent Citations (1)
| Title |
|---|
| MASAAKI SUGIURA ET AL.: "Surface Treatment of meso-Carbon Microbeads by Oxygen Plasma", 《THE CHEMICAL SOCIETY OF JAPAN》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581275A (en) * | 2018-06-07 | 2019-12-17 | 山东欧铂新材料有限公司 | Graphene/soft carbon negative electrode material of lithium ion battery, preparation method of graphene/soft carbon negative electrode material and lithium ion battery |
| CN110581275B (en) * | 2018-06-07 | 2023-03-17 | 山东欧铂新材料有限公司 | Graphene/soft carbon negative electrode material of lithium ion battery, preparation method of graphene/soft carbon negative electrode material and lithium ion battery |
| CN116536629A (en) * | 2023-04-19 | 2023-08-04 | 青岛新泰和纳米科技有限公司 | Mesophase carbon microsphere-silicon carbon composite material and preparation method thereof |
| CN116536629B (en) * | 2023-04-19 | 2024-03-19 | 青岛新泰和纳米科技有限公司 | Mesophase carbon microsphere-silicon carbon composite material and preparation method thereof |
| CN116666639A (en) * | 2023-08-02 | 2023-08-29 | 天津力神电池股份有限公司 | Hard carbon electrode material, preparation method thereof and battery |
| CN116666639B (en) * | 2023-08-02 | 2023-11-03 | 天津力神电池股份有限公司 | Hard carbon electrode material, preparation method thereof and battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108117056B (en) | 2021-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108878849B (en) | Synthesis process of lithium-rich oxide and lithium ion battery containing lithium-rich oxide | |
| CN103035890B (en) | Silicon and graphene composite electrode material and preparation method thereof | |
| CN103972508B (en) | A kind of inorganic doping/coating modification native graphite, preparation method and application thereof | |
| CN106960954A (en) | A kind of preparation method and application of Prussian blue/graphene/sulphur composite | |
| CN108832122A (en) | Improve the method for electrochemical performances of lithium iron phosphate using copper/graphene | |
| Liu et al. | Pyrometallurgically regenerated LiMn2O4 cathode scrap material and its electrochemical properties | |
| CN113270587A (en) | Preparation method and application of high-stability silicon-based composite material constructed by in-situ fluorination | |
| CN103490040A (en) | Preparation method of lithium titanate-graphene composite material | |
| CN105633370A (en) | Modified natural graphite and preparation method and application thereof | |
| CN108117056A (en) | The preparation method of graphene coated plasma modification carbonaceous mesophase spherules | |
| CN112186167A (en) | Preparation method of template-method-coated high-nickel ternary cathode material for lithium ion battery | |
| CN116216746A (en) | Preparation method and application of Prussian blue material with high thermal stability | |
| CN105489884B (en) | The method that electronation graphene oxide/magnesium improves nickle cobalt lithium manganate chemical property | |
| CN113735174B (en) | Monovalent cation doped manganese-based compound-based water-based zinc ion battery positive electrode material, and preparation method and application thereof | |
| CN108832106A (en) | A kind of redox graphene-cobalt nickel oxide aluminium lithium composite positive pole, preparation method and its application | |
| US20240343607A1 (en) | Nickel-cobalt-manganese ternary positive electrode material nanorod and use thereof | |
| CN110518210A (en) | A kind of method and its material promoting rich lithium ternary material cyclical stability and capacity | |
| CN114899374B (en) | Composite positive electrode material of lithium-sulfur battery and preparation method thereof | |
| CN111952553B (en) | Preparation method of sulfur/sisal fiber activated carbon lithium-sulfur battery positive electrode material | |
| CN116177520A (en) | High-performance hard carbon negative electrode material for low-temperature sodium ion battery and preparation method thereof | |
| CN113363577A (en) | Multifunctional lithium air battery electrolyte additive | |
| CN114134382A (en) | Preparation method of porous copper-germanium-aluminum-lithium battery negative electrode material | |
| CN110534744A (en) | A kind of lithium ion battery negative material and preparation method thereof, lithium ion battery negative electrode and button cell | |
| CN106328990B (en) | Based on redox graphene/layered metal phosphates composite material lithium ion battery negative material | |
| CN103647081A (en) | Ascorbic acid modified graphite preparation method |
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 |