CN110451501A - Utilize the artificial plumbago negative pole material and preparation method thereof of graphite electrode nipple powder preparation - Google Patents
Utilize the artificial plumbago negative pole material and preparation method thereof of graphite electrode nipple powder preparation Download PDFInfo
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- CN110451501A CN110451501A CN201910771136.5A CN201910771136A CN110451501A CN 110451501 A CN110451501 A CN 110451501A CN 201910771136 A CN201910771136 A CN 201910771136A CN 110451501 A CN110451501 A CN 110451501A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
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- 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
Abstract
The invention discloses a kind of methods for preparing artificial plumbago negative pole material using graphite electrode nipple powder comprising following steps: S1: collecting graphite electrode nipple powder, carries out broken classification to graphite electrode nipple powder and handle to obtain graphite particle；S2: graphite particle is subjected to spheroidising, obtains ball graphite particle；S3: ball graphite particle is subjected to magnetic treatment, obtains degaussing Spherical graphite particles；S4: by degaussing Spherical graphite particles and package granulating agent mixing granulation, package granulated pellet is obtained；S5: package granulated pellet is subjected to pyrolysis carbonization treatment, and then is classified except magnetic, granulation powder must be wrapped up；S6: package granulation powder is subjected to shaping, classification processing, high performance artificial plumbago negative pole material is made.The present invention overcomes the exceeded problems of graphite electrode nipple powder specific surface area height, magnetisable material content, have widened the application field of graphite electrode nipple powder, have realized resource regeneration trans-utilization, have been easy to industrialization large-scale production.
Description
Technical field
The invention belongs to technical field of lithium ion, especially a kind of artificial stone prepared using graphite electrode nipple powder
Black negative electrode material and preparation method to the artificial plumbago negative pole material.
Background technique
Lithium ion battery is a kind of new product for being widely used in the industries such as rail traffic, telecommunications, wearable device
Kind battery.Currently, graphite is one of first choice of negative electrode of lithium ion battery, it mainly include natural graphite and two kinds of artificial graphite, day
Right graphite material mainly uses natural flake graphite, to processes such as its broken, nodularization, classification, purifying, surface treatments
Reason obtains.And artificial graphite is then using coal-based needle coke and petroleum coke as aggregate, coal tar pitch as binder, through ingredient, kneading,
The processes such as molding, charing and high temperature graphitization are prepared.And in carbon industry, the preparation process of graphite electrode it is similar with it is artificial
The production technology of graphite.Mechanical-moulded in graphite electrode can generate a large amount of electrode contact powder in the process, and electrode contact powder is
Completed graphitization, degree of graphitization is high, but due to the surface of these graphite electrode nipple powder can stick more resistance material,
The impurity such as silicon carbide, iron rust, ash impurities content is high, magnetisable material content is exceeded.It therefore can not be by these electrode contact powder
Directly apply to the graphite cathode material for preparing lithium ion battery.It causes a large amount of electrode contact powder raw material to be wasted, no
Meet current environmentally protective production theory.Therefore, a kind of novel graphite cathode material preparation method how is developed, is overcome
Problems of the prior art, the Graphite nipple powder for making full use of graphite electrode to generate during mechanical-moulded, realize stone
The preparation of black negative electrode material is that those skilled in the art need to reach the technical effect of energy conservation and environmental protection, resource regeneration trans-utilization
The direction to be studied.
Summary of the invention
The object of the present invention is to provide a kind of method for preparing artificial plumbago negative pole material using graphite electrode nipple powder, benefits
Artificial plumbago negative pole material is prepared with graphite electrode nipple powder, reaches the technical effect of energy conservation and environmental protection, resource regeneration trans-utilization.
The technical scheme adopted is as follows:
A method of artificial plumbago negative pole material being prepared using graphite electrode nipple powder comprising following steps: S1: receiving
Collect graphite electrode nipple powder, broken classification processing is carried out to graphite electrode nipple powder with airslide disintegrating mill, obtains graphite particle；
S2: graphite particle obtained by S1 is subjected to spheroidising with balling machine, obtains Spherical graphite particles；S3: by spherical graphite obtained by S2
Particle carries out magnetic treatment with electric magnetic iron remover, obtains degaussing Spherical graphite particles；S4: by degaussing Spherical graphite particles obtained by S3
It is uniformly mixed with package granulating agent, mixing granulation obtains package granulated pellet in cladding pelletizer；S5: package obtained by S4 is made
Grain particle carries out pyrolysis carbonization treatment with heat-treatment furnace under the atmosphere of inert gas and classification removes magnetic, obtains package pelletizing
Body；S6: package granulation powder obtained by S5 is subjected to shaping, classification processing in graphite trimmer, graphite cathode material is made.
By using this technical solution: being based on step S1 and S2, the graphite electrode nipple powder being collected into is broken into micro-
Graphite particle small and that surface roundness is high is wrapped up in favor of the mixing in subsequent step and being granulated.Based on step S3 to spherical stone
Black particle carries out reducing its iron content except magnetic.Based on step S4, S5, will be mixed except the Spherical graphite particles after magnetic with granulating agent
It is granulated and is pyrolyzed carbonization treatment, the carbon-coating for keeping particle surface clad layer-forming stable reduces its specific surface area, while making particle
Uniform particle sizesization, most further being removed magnetic afterwards makes iron content be reduced to 30ppm or less, shaping and classification processing, and it is negative that graphite is made
Pole material
Preferably, above-mentioned to be prepared in the method for artificial plumbago negative pole material using graphite electrode nipple powder: step S1 institute
The granularity for stating graphite particle is D10For 0-8 μm, D50For 10-15 μm, D90It is 20-50 μm.
It is further preferred that above-mentioned prepared in the method for artificial plumbago negative pole material using graphite electrode nipple powder: step S4
The package granulating agent uses any one of pitch, phenolic resin, epoxy resin.
It may further be preferable that above-mentioned prepared in the method for artificial plumbago negative pole material using graphite electrode nipple powder: step
Heat-treatment furnace described in rapid S5 uses any one of batch-type furnace, tube furnace, pushed bat kiln, roller kilns, rotary furnace.Further preferred
It is that in the preparation method of above-mentioned artificial plumbago negative pole material: inert gas described in step S5 is using any in nitrogen or argon gas
Kind.
It is even furthermore preferable that above-mentioned prepared in the method for artificial plumbago negative pole material using graphite electrode nipple powder:
The temperature environment that carbonization treatment is pyrolyzed described in step S5 is 700~1200 DEG C, and soaking time is 1-5 hours.
The invention also discloses a kind of artificial plumbago negative pole materials prepared using graphite electrode nipple powder, use above-mentioned
The preparation method of artificial plumbago negative pole material is prepared.
Preferably, in the above-mentioned artificial plumbago negative pole material using the preparation of graphite electrode nipple powder: the artificial graphite
The size distribution of cathode is D10For 0-16 μm, D50For 20-28 μm, D90It is 30-60 μm, specific surface area 1.5-2.5m2/ g, vibration
Real density is 0.7-1.1g/cm3, fixed carbon content is 99.0%-99.9%, degree of graphitization 91-96%.
It is further preferred that in the above-mentioned artificial plumbago negative pole material using the preparation of graphite electrode nipple powder: the package is made
Granula ingredient accounts for the 2-10% of artificial plumbago negative pole material quality.
Compared with prior art, the present invention can realize the preparation to artificial graphite material using graphite electrode nipple powder,
Reach the technical effect of energy conservation and environmental protection, resource regeneration trans-utilization.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the charging and discharging curve figure using the lithium ion battery of 1 gained graphite cathode material of embodiment.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, it is further described below in conjunction with each embodiment.
It should be appreciated that implementation of the invention is not limited by the following examples, the present invention is done in any form
Accommodation and/or change fall within the scope of the present invention.In following embodiment, if not refering in particular to, all percentage is
Unit of weight, used equipment and raw material etc. are commercially available or commonly used in the art.Side in following embodiments
Method is unless otherwise instructed the conventional method of this field.
Embodiment 1:
A method of artificial plumbago negative pole material is prepared using graphite electrode nipple powder comprising following implementation steps:
S1: collecting graphite electrode nipple powder, with airslide disintegrating mill to graphite electrode nipple powder carry out broken classification handle,
To size distribution D10For 7.5 μm, D50For 14.0 μm, D90For 32.0 μm of graphite particle；
S2: graphite particle obtained by S1 is subjected to spheroidising with balling machine, obtains Spherical graphite particles；
S3: by Spherical graphite particles obtained by S2 with electric magnetic iron remover carry out magnetic treatment, obtain degaussing Spherical graphite particles,
The iron content in particle is set to be reduced to 30ppm or less；
S4: using pitch as package granulating agent, pouring into pitch in the degaussing Spherical graphite particles obtained by S3 and form mixture,
Wherein the quality of pitch accounts for the 10% of mixture gross mass, mixture is carried out mixing granulation in cladding pelletizer, is wrapped
Wrap up in granulated pellet；
S5: will package granulated pellet obtained by S4 in rotary furnace under nitrogen atmosphere protection in 1200 DEG C of pyrolysis carbonization treatments
And be classified and remove magnetic, the processing time is 1h, obtains package granulation powder；
S6: package granulation powder obtained by S5 is subjected to shaping, classification processing, graphite cathode material, the graphite cathode is made
The size distribution D of material10For 10.0 μm, D50For 19.0 μm, D90It is 34.0 μm, specific surface area 2.5m2/ g, tap density are
0.90g/cm3, fixed carbon content is 99.4%, degree of graphitization 94%.
Embodiment 2:
A method of artificial plumbago negative pole material is prepared using graphite electrode nipple powder comprising following implementation steps:
S1: collecting graphite electrode nipple powder, with airslide disintegrating mill to graphite electrode nipple powder carry out broken classification handle,
To size distribution D10For 7.5 μm, D50For 15.0 μm, D90For 32.0 μm of graphite particle；
S2: graphite particle obtained by S1 is subjected to spheroidising with balling machine, obtains Spherical graphite particles；
S3: carrying out magnetic treatment for Spherical graphite particles obtained by S2 with electric magnetic iron remover, obtain degaussing Spherical graphite particles,
Its iron content is set to be reduced to 30ppm or less；
S4: using epoxy resin as package granulating agent, to addition epoxy resin shape in degaussing Spherical graphite particles obtained by S3
Resulting mixture, the middle epoxy resin quality account for the 3% of mixture gross mass；Mixture is coated in cladding pelletizer and is made
Grain obtains package granulated pellet；
S5: by package granulated pellet obtained by S4 with batch-type furnace under argon gas atmosphere, under 1000 DEG C of temperature environment
Carry out pyrolysis carbonization treatment, the processing time be 3h, then carry out classification except magnetic, obtain package granulation powder；
S6: package granulation powder obtained by S5 is subjected to shaping, classification processing, graphite cathode material, the graphite cathode is made
The size distribution D of material10For 9.0 μm, D50For 16.0 μm, D90It is 30.0 μm, specific surface area 2.3m2/ g, tap density are
0.85g/cm3, fixed carbon content is 99.2%, degree of graphitization 93%.
Embodiment 3
A method of artificial plumbago negative pole material is prepared using graphite electrode nipple powder comprising following implementation steps:
S1: collecting graphite electrode nipple powder, with airslide disintegrating mill to graphite electrode nipple powder carry out broken classification handle,
To size distribution D10For 7.5 μm, D50For 17.0 μm, D90For 32.0 μm of graphite particle；
S2: graphite particle obtained by S1 is subjected to spheroidising with balling machine, obtains Spherical graphite particles；
S3: carrying out magnetic treatment for Spherical graphite particles obtained by S2 with electric magnetic iron remover, obtain degaussing Spherical graphite particles,
So that the iron content in particle is reduced to 30ppm or less；
S4: using phenolic resin as package granulating agent, to phenolic resin is added in degaussing Spherical graphite particles obtained by S3
Form mixture, the quality for controlling phenolic resin accounts for the 5% of mixture, in cladding pelletizer adequately mixing granulation, obtain
Wrap up granulated pellet；
S5: package granulated pellet obtained by S4 is subjected to heat under nitrogen atmosphere protection with tube furnace in the environment of 800 DEG C
It solves carbonization treatment, continue 5h, then carry out classification and remove magnetic, obtain package granulation powder；
S6: package granulation powder obtained by S5 is subjected to shaping, classification processing, obtains graphite cathode material, the graphite is negative
The size distribution D of pole material10For 11.0 μm, D50For 20.0 μm, D90It is 34.0 μm, specific surface area 1.5m2/ g, tap density
For 0.86g/cm3, fixed carbon content is 99.4%, degree of graphitization 93%.
Through detecting, its design parameter of resulting artificial plumbago negative pole material such as the following table 1 is prepared by above three embodiments
It is shown:
Table 1
Obviously, the preparation method provided through the invention is able to produce out the more superior artificial plumbago negative pole material of performance
Material, meanwhile, production cost is reduced into 50%-70%.
The above, only specific embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any ripe
The technical staff of art technology is known in technical scope disclosed by the invention, any changes or substitutions that can be easily thought of, should all contain
Lid is within protection scope of the present invention.Protection scope of the present invention is subject to the scope of protection of the claims.
Claims (9)
1. a kind of method for preparing artificial plumbago negative pole material using graphite electrode nipple powder, which is characterized in that including walking as follows
It is rapid:
S1: collecting graphite electrode nipple powder, carries out broken classification processing to graphite electrode nipple powder with airslide disintegrating mill, obtains stone
Black particle；
S2: graphite particle obtained by S1 is subjected to spheroidising with balling machine, obtains ball graphite particle；
S3: ball graphite particle obtained by S2 is subjected to magnetic treatment with electric magnetic iron remover, obtains degaussing ball graphite particle；
S4: degaussing ball graphite particle obtained by S3 is uniformly mixed with package granulating agent, mixing granulation obtains in cladding pelletizer
To package granulated pellet；
S5: package granulated pellet obtained by S4 is subjected to pyrolysis carbonization treatment and classification with heat-treatment furnace under the atmosphere of inert gas
Except magnetic, obtain package granulation powder；
S6: package granulation powder obtained by S5 is subjected to shaping, classification processing in graphite trimmer, artificial plumbago negative pole material is made
Material.
2. the method for preparing artificial plumbago negative pole material using graphite electrode nipple powder as described in claim 1, it is characterised in that:
The granularity of graphite particle described in step S1 is D10For 0-8 μm, D50For 10-15 μm, D90It is 20-50 μm.
3. the method for preparing artificial plumbago negative pole material using graphite electrode nipple powder as described in claim 1, it is characterised in that:
Package granulating agent described in step S4 uses any one of pitch, phenolic resin, epoxy resin.
4. the method for preparing artificial plumbago negative pole material using graphite electrode nipple powder as described in claim 1, it is characterised in that:
Heat-treatment furnace described in step S5 uses any one of batch-type furnace, tube furnace, pushed bat kiln, roller kilns, rotary furnace.
5. the method for preparing artificial plumbago negative pole material using graphite electrode nipple powder as described in claim 1, it is characterised in that:
Inert gas described in step S5 uses any one of nitrogen or argon gas.
6. the method for preparing artificial plumbago negative pole material using graphite electrode nipple powder as described in claim 1, it is characterised in that:
The temperature environment of the processing of low temperature pyrogenation described in step S5 is 700~1200 DEG C, and soaking time is 1-5 hours.
7. a kind of artificial plumbago negative pole material prepared using graphite electrode nipple powder, it is characterised in that: using such as claim
Any one of 1-6 artificial plumbago negative pole material preparation method is prepared.
8. utilizing the artificial plumbago negative pole material of graphite electrode nipple powder preparation as claimed in claim 7, it is characterised in that: described
The size distribution of artificial plumbago negative pole material is D10For 0-16 μm, D50For 20-28 μm, D90It is 30-60 μm, specific surface area is
1.5-2.5m2/ g, tap density 0.7-1.1g/cm3, fixed carbon content is 99.0%-99.9%, degree of graphitization 91-
96%.
9. utilizing the artificial plumbago negative pole material of graphite electrode nipple powder preparation as claimed in claim 8, it is characterised in that: described
Package granulating agent quality accounts for the 2-10% of artificial plumbago negative pole material quality.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600091A (en) * | 2020-06-05 | 2020-08-28 | 深圳鑫茂新能源技术有限公司 | Method for recycling graphite of negative electrode of lithium ion battery |
| CN112645318A (en) * | 2020-11-19 | 2021-04-13 | 上海杉杉科技有限公司 | Method for preparing artificial graphite cathode material by using resistance material |
| CN112713264A (en) * | 2020-12-28 | 2021-04-27 | 宁波杉杉新材料科技有限公司 | Artificial graphite negative electrode material, preparation method, application and battery |
| CN113104845A (en) * | 2020-01-13 | 2021-07-13 | 上海昱瓴新能源科技有限公司 | Method for preparing porous artificial graphite cathode material by using electrode joint powder as raw material |
| CN115893402A (en) * | 2022-11-24 | 2023-04-04 | 银硅(宁波)科技有限公司 | Method for preparing low-expansion high-rate graphite negative electrode material by using crucible waste |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994071A (en) * | 2010-09-28 | 2011-03-30 | 蔡乐勤 | Aluminum base carbon fiber graphite composite material and preparation method |
| CN102544629A (en) * | 2012-01-17 | 2012-07-04 | 佛山市邦普循环科技有限公司 | Method for regenerating waste and old graphite anode materials |
| CN102610795A (en) * | 2011-01-20 | 2012-07-25 | 宁波宏远炭素工业有限公司 | Preparation method of lithium ion battery carbon cathode material coating layer |
| CN103811758A (en) * | 2014-02-19 | 2014-05-21 | 新乡市赛日新能源科技有限公司 | Preparation method for synthesizing graphite particle negative electrode material |
| CN104766955A (en) * | 2015-04-24 | 2015-07-08 | 田东 | Method for recycling natural graphite fine powder as negative pole material |
| CN104766954A (en) * | 2015-04-24 | 2015-07-08 | 田东 | Method for recycling artificial graphite fine powder as negative pole material |
| CN105428615A (en) * | 2015-11-09 | 2016-03-23 | 大连宏光锂业股份有限公司 | Production method for modified artificial graphite negative electrode material |
| CN107785631A (en) * | 2017-09-14 | 2018-03-09 | 河南易成新能源股份有限公司 | The recovery method of graphite cathode material |
| CN108083270A (en) * | 2017-12-21 | 2018-05-29 | 天津理工大学 | A kind of reparative regeneration method of graphite cathode waste material |
-
2019
- 2019-08-19 CN CN201910771136.5A patent/CN110451501B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994071A (en) * | 2010-09-28 | 2011-03-30 | 蔡乐勤 | Aluminum base carbon fiber graphite composite material and preparation method |
| CN102610795A (en) * | 2011-01-20 | 2012-07-25 | 宁波宏远炭素工业有限公司 | Preparation method of lithium ion battery carbon cathode material coating layer |
| CN102544629A (en) * | 2012-01-17 | 2012-07-04 | 佛山市邦普循环科技有限公司 | Method for regenerating waste and old graphite anode materials |
| CN103811758A (en) * | 2014-02-19 | 2014-05-21 | 新乡市赛日新能源科技有限公司 | Preparation method for synthesizing graphite particle negative electrode material |
| CN104766955A (en) * | 2015-04-24 | 2015-07-08 | 田东 | Method for recycling natural graphite fine powder as negative pole material |
| CN104766954A (en) * | 2015-04-24 | 2015-07-08 | 田东 | Method for recycling artificial graphite fine powder as negative pole material |
| CN105428615A (en) * | 2015-11-09 | 2016-03-23 | 大连宏光锂业股份有限公司 | Production method for modified artificial graphite negative electrode material |
| CN107785631A (en) * | 2017-09-14 | 2018-03-09 | 河南易成新能源股份有限公司 | The recovery method of graphite cathode material |
| CN108083270A (en) * | 2017-12-21 | 2018-05-29 | 天津理工大学 | A kind of reparative regeneration method of graphite cathode waste material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104845A (en) * | 2020-01-13 | 2021-07-13 | 上海昱瓴新能源科技有限公司 | Method for preparing porous artificial graphite cathode material by using electrode joint powder as raw material |
| CN111600091A (en) * | 2020-06-05 | 2020-08-28 | 深圳鑫茂新能源技术有限公司 | Method for recycling graphite of negative electrode of lithium ion battery |
| CN112645318A (en) * | 2020-11-19 | 2021-04-13 | 上海杉杉科技有限公司 | Method for preparing artificial graphite cathode material by using resistance material |
| CN112713264A (en) * | 2020-12-28 | 2021-04-27 | 宁波杉杉新材料科技有限公司 | Artificial graphite negative electrode material, preparation method, application and battery |
| CN115893402A (en) * | 2022-11-24 | 2023-04-04 | 银硅(宁波)科技有限公司 | Method for preparing low-expansion high-rate graphite negative electrode material by using crucible waste |
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