CN106169582A - A kind of natural pin Jiao's composite graphite negative electrode material production method - Google Patents
A kind of natural pin Jiao's composite graphite negative electrode material production method Download PDFInfo
- Publication number
- CN106169582A CN106169582A CN201610707852.3A CN201610707852A CN106169582A CN 106169582 A CN106169582 A CN 106169582A CN 201610707852 A CN201610707852 A CN 201610707852A CN 106169582 A CN106169582 A CN 106169582A
- Authority
- CN
- China
- Prior art keywords
- raw material
- carry out
- weigh
- production method
- negative electrode
- 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
- H01M4/58—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
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention provides a kind of natural pin Jiao's composite graphite negative electrode material production method, with needle coke as raw material A, with native graphite for raw material B, with Colophonium micropowder for raw material C, with graphene conductive agent for raw material D, with CNT for raw material E, above-mentioned raw materials is through a series of machinings, surface modification, the methods such as Chemical deep modification and doping, prepare one to have extended cycle life, charge-discharge velocity is fast, high temperature performance is good, good processability, the negative material of applicable electrokinetic cell, its production technology is simple, production efficiency is high, low cost, course of processing safety, can be used for industrialized production.It is an advantage of the current invention that: add graphene conductive agent and CNT mixing material, improve the electric conductivity of material；Carry out graphitization under coarse powder state, it is possible to reduce particle surface oxidation activity point, degree of oxidation and materials loss rate, improve capacity and the yield of material.
Description
Technical field
The present invention relates to a kind of natural pin Jiao's composite graphite negative electrode material production method, belong to lithium ion battery negative material
Technical field.
Background technology
The important sources as automobile power of lithium ion battery, has the saving energy, the effect of protection environment.And lithium from
The negative material of sub-battery is the main contents of current scientific research personnel research, the most preferably makes battery play maximum usefulness,
Energy-saving and emission-reduction, optimize the environment, and have vital effect for socioeconomic development.At present, the lithium in research range from
Sub-cell negative electrode material remains based on graphite etc., in daily life, using graphite as lithium ion battery negative material
Battery operated principle be, battery in charging process, on positive pole abjection lithium ion embed rapidly negative pole, when embed lithium from
Son is the most, and the when of embedding the fastest, the capacity of charging is the highest, and discharge capacity is the biggest, and charge-discharge velocity is the fastest.Currently,
The lithium ion battery negative material of commercialization mostly is single Carbon Materials, but Carbon Materials is as the negative material of lithium ion itself
There is also certain defect, Carbon anode current potential with the current potential of lithium metal close to when, easily there is separating out Li dendrite, thus
Cause short circuit, form the potential safety hazard of lithium ion battery.The performance of lithium ion battery negative material is also electrokinetic cell development
One of bottleneck, it is possible to constantly improve research and development Novel cathode material for lithium ion battery, is the important process of development lithium electric power industry.
China's lithium-ion-power cell development starts from twentieth century, starts late.But since 2000, along with China
More than 10 hundred million funds of input are used for supporting to develop electric motor car and associated batteries technology, and the reality of " 863 " electric automobile key special subjects
Executing, strong state-run, private enterprise have carried out developmental research to lithium-ion-power cell, the performance of lithium ion battery of production with
External product is suitable, and some aspect is even better than external product, and export abroad amount constantly rises.China's lithium ion power electricity at present
Pond mainly includes power tool battery, battery of electric bicycle, extraordinary Vehicular battery and battery for electric automobile etc., also has future
Being probably the ideal source replacing existing submarine electrokinetic cell, various lithium-ion-power cells are in the industrialization starting stage.
In general, a kind of good negative material is selected should to follow following principle: specific energy is high, discharge and recharge reaction reversibility
Good good with the compatibility of electrolyte and binding agent, high temperature performance is good, and charge-discharge velocity is fast.The present invention is directed to different carbonaceous material
The performance of material carries out Improvement, reaches to adapt to the performance requirement that electrokinetic cell uses.
Summary of the invention
It is an object of the invention to provide a kind of natural pin Jiao's composite graphite negative electrode material production method, single artificial to solve
The problem that graphite degree of graphitization is low and in heat treatment process, capacity caused by degree of oxidation height is low, overcome native graphite Cycle Difference,
The defects such as high temperature performance and flexibility (adaptability) of operation difference, improve the electric conductivity of material, high rate performance etc. simultaneously.
Technical scheme: a kind of natural pin Jiao's composite graphite negative electrode material production method, concrete production technology is:
A () is with needle coke as raw material A；
B () is with native graphite for raw material B；
(c) with Colophonium micropowder for raw material C, particle diameter D50≤5 m；
D () is with graphene conductive agent for raw material D；
E () is with CNT for raw material E；
F raw material A is ground into the granule that particle diameter is 0.5-3mm by (), carry out graphitization at 2800 ~ 3200 DEG C, then carries out thin
Pulverizing, grinding particle size D50 is 8 ~ 12 m；
G raw material A fine powder that (f) step is obtained by () and raw material B, by weight A/B=100/(30 ~ 100) ratio carry out uniformly
Mixing, fusion；
H material and raw material C, the by weight ratio of (A+B)/C=100/2 ~ 10 that (g) step is obtained by () mix, mixing
After at 1200 ~ 1500 DEG C, carry out carbonization；
(i) by raw material D and raw material E by weight D/E=100/(50 ~ 200) ratio carry out air-flow mixing；
J material that (h) step is obtained by () and the material that (i) step obtains, by weight (A+B+C)/(D+E)=100/(1 ~ 3)
Ratio uniformly mix, screening, finally obtain product.
Preferably, described raw material A is petroleum needle coke or coal-based needle Jiao.
Preferably, described raw material B is asphalt or coal tar pitch.
Preferably, described in step (g), (h), (j), mixing uses double-cone mixer.
Preferably, employing jet mill is pulverized described in step (f).
Beneficial effects of the present invention:
1, needle coke is the excellent raw material for developing power graphite cathode material, and the present invention uses high-quality needle coke to be main
Raw material, the performance advantage utilizing needle coke the high power capacity combining native graphite and the good advantage of isotropism, compound preparation is negative
Pole material, is product pattern, processing characteristics, and the application performance such as capacity, efficiency, circulation is significantly improved；
2, it is processed into coarse powder owing to the present invention carries out mechanical activation comminution to needle coke, under coarse powder state, carries out graphitization, can subtract
The surface oxidation degree of few material, reduces active site, and effectively reduces graphited material loss；After fine powder, material is thin
Particle surface is not oxidized, can improve effective charge-discharge velocity, and contribute to pitch-coating layer cladding solid closely, no
Easy to fall off；
3, needle coke carries out graphitization under coarse powder state, is possible not only to reduce material oxidation degree, after bonding after continuous process
More can reduce the specific surface area of material, improve drawing abillity, i.e. pole piece compacting bounce-back is little, pole piece compaction density is high；
4, use needle coke to add a certain proportion of native graphite and carry out surface modification, improve the appearance of needle coke, improve jolt ramming
Density, reduces specific surface area, improves the isotropism of needle coke, thus improves charge-discharge velocity, concurrently facilitates and make material list
Face is evenly coated, and forms firm pitch-coating layer；
5, carry out asphalt carbon cladding after graphitization, form one layer of fine and close soft charcoal layer at graphite surface, be favorably improved surface
Electric conductivity, adds a small amount of graphene conductive agent and CNT, can increase substantially the electric conductivity of material, improves charge and discharge
Electricity speed；
6, in sum, the present invention, by utilizing needle coke and native graphite, through a series of machinings, surface modification, changes
The degree of depth is modified, and the method such as doping, and preparing one has extended cycle life, and charge-discharge velocity is fast, and high temperature performance is good, processability
Can be good, the negative material of applicable electrokinetic cell, its production technology is simple, and production efficiency is high, low cost, and the course of processing is pacified
Entirely, can be used for industrialized production.
Detailed description of the invention:
Embodiment 1
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3000 DEG C, carry out graphitization, so
After carry out finely divided, grinding particle size D50 is 10 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 15kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 1.5 kg, at 1300 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 2kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.2kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 348.6mAh/g, and discharging efficiency is 93.0%, through 50 circulations
Rear capability retention is 98.4%, and after 100 circulations, capability retention is 96.5%, as shown in table 1.
Embodiment 2
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3000 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 8 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 20kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 2.5 kg, at 1300 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 1kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 349.2mAh/g, and discharging efficiency is 93.2%, through 50 circulations
Rear capability retention is 98.8%, and after 100 circulations, capability retention is 96.3%, as shown in table 1.
Embodiment 3
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 2800 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 11 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 25kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 3.0 kg, at 1200 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 1.2kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.6kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 347.3mAh/g, and discharging efficiency is 92.9%, through 50 circulations
Rear capability retention is 97.5%, and after 100 circulations, capability retention is 96.4%, as shown in table 1.
Embodiment 4
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 2900 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 12 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 25kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 2.0 kg, at 1400 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 1.6kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 350.0mAh/g, and discharging efficiency is 93.5%, through 50 circulations
Rear capability retention is 98.7%, and after 100 circulations, capability retention is 96.6%, as shown in table 1.
Embodiment 5
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3100 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 10 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 30kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 4.0 kg, at 1500 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 2.4kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 348.6mAh/g, and discharging efficiency is 92.5%, through 50 circulations
Rear capability retention is 98.2%, and after 100 circulations, capability retention is 96.3%, as shown in table 1.
Embodiment 6
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3200 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 8 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 40kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 1.5 kg, at 1300 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 3kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.2kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 352.4mAh/g, and discharging efficiency is 93.4%, through 50 circulations
Rear capability retention is 97.3%, and after 100 circulations, capability retention is 95.6%, as shown in table 1.
Embodiment 7
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3100 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 11 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 50kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 2.0 kg, at 1400 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 4kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 358.8mAh/g, and discharging efficiency is 94.2%, through 50 circulations
Rear capability retention is 98.4%, and after 100 circulations, capability retention is 96.7%, as shown in table 1.
Embodiment 8
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3000 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 10 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 25kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 2.5 kg, at 1300 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 3kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.2kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 354.7mAh/g, and discharging efficiency is 93.7%, through 50 circulations
Rear capability retention is 98.6%, and after 100 circulations, capability retention is 96.8%, as shown in table 1.
Embodiment 9
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3100 DEG C, carry out graphitization,
Then carrying out finely divided, grinding particle size D50 is 12 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 15kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 1.5 kg, at 1400 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 2kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 349.6mAh/g, and discharging efficiency is 94.5%, through 50 circulations
Rear capability retention is 98.4%, and after 100 circulations, capability retention is 96.6%, as shown in table 1.
Embodiment 10
Weigh needle-shape coke raw material A 200kg, be ground into the granule that particle diameter is about 0.5 ~ 3mm, at 3000 DEG C, carry out graphitization, so
After carry out finely divided, grinding particle size D50 is 10 m.
Weigh the needle-shape coke raw material A 50kg after graphitization, add natural graphite starting material B 15kg, mix, then enter
Row merges shaping.
Weigh the raw material after fusion (A+B) 50kg and add Colophonium powder material C 1.5 kg, at 1300 DEG C, carry out carbonization.
Weigh graphene conductive agent raw material D 2kg and add carbon nanometer tube material E 3.6kg, carry out air-flow mixing.
Weigh the raw material after carbonization (A+B+C) 20kg and add compound (D+E) 0.4kg, uniformly mix, sieve, remove
Miscellaneous, obtain product.
Carry out product of the present invention pulling an oar, after the series of process such as coating, then make LIR2430 type button cell, warp
Test, gained composite graphite negative electrode material discharge capacity first is 349.4mAh/g, and discharging efficiency is 94.4%, through 50 circulations
Rear capability retention is 97.6%, and after 100 circulations, capability retention is 95.7%, as shown in table 1.
。
Claims (3)
1. natural pin Jiao's composite graphite negative electrode material production method, concrete production technology is:
A () is with needle coke as raw material A；
B () is with native graphite for raw material B；
(c) with Colophonium micropowder for raw material C, particle diameter D50≤5 m；
D () is with graphene conductive agent for raw material D；
E () is with CNT for raw material E；
F raw material A is ground into the granule that particle diameter is 0.5-3mm by (), carry out graphitization at 2800 ~ 3200 DEG C, then carries out thin
Pulverizing, grinding particle size D50 is 8 ~ 12 m；
G raw material A fine powder that (f) step is obtained by () and raw material B, by weight A/B=100/(30 ~ 100) ratio carry out uniformly
Mixing, fusion；
H material and raw material C, the by weight ratio of (A+B)/C=100/2 ~ 10 that (g) step is obtained by () mix, mixing
After at 1200 ~ 1500 DEG C, carry out carbonization；
(i) by raw material D and raw material E by weight D/E=100/(50 ~ 200) ratio carry out air-flow mixing；
J material that (h) step is obtained by () and the material that (i) step obtains, by weight (A+B+C)/(D+E)=100/(1 ~ 3)
Ratio uniformly mix, screening, finally obtain product.
2. a kind of high-capacity lithium-ion artificial plumbago negative pole material production method as claimed in claim 1, it is characterised in that: institute
Stating raw material A is petroleum needle coke or coal-based needle Jiao.
3. a kind of high-capacity lithium-ion artificial plumbago negative pole material production method as claimed in claim 1, it is characterised in that: institute
Stating raw material B is asphalt or coal tar pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707852.3A CN106169582B (en) | 2016-08-23 | 2016-08-23 | A kind of natural needle coke composite graphite negative electrode material production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707852.3A CN106169582B (en) | 2016-08-23 | 2016-08-23 | A kind of natural needle coke composite graphite negative electrode material production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106169582A true CN106169582A (en) | 2016-11-30 |
| CN106169582B CN106169582B (en) | 2018-08-14 |
Family
ID=57377138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610707852.3A Active CN106169582B (en) | 2016-08-23 | 2016-08-23 | A kind of natural needle coke composite graphite negative electrode material production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106169582B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876709A (en) * | 2017-02-22 | 2017-06-20 | 江西紫宸科技有限公司 | A kind of preparation method of high magnification carbon negative pole material |
| CN107293697A (en) * | 2017-07-26 | 2017-10-24 | 大连宏光锂业股份有限公司 | A kind of power-type lithium ion battery negative material production method |
| CN108383116A (en) * | 2018-02-11 | 2018-08-10 | 珠海光宇电池有限公司 | Artificial plumbago negative pole material and preparation method thereof and negative electrode of lithium ion battery |
| CN109860524A (en) * | 2017-11-30 | 2019-06-07 | 宝武炭材料科技有限公司 | A kind of method of solid asphalt low temperature cladding preparation negative electrode material |
| CN113422025A (en) * | 2021-06-25 | 2021-09-21 | 洛阳月星新能源科技有限公司 | Natural graphite composite material and preparation method thereof |
| CN113912046A (en) * | 2021-09-30 | 2022-01-11 | 赣州市康达新能源材料有限公司 | Preparation method of artificial graphene super conductive agent |
| CN114824233A (en) * | 2022-05-31 | 2022-07-29 | 深圳市翔丰华科技股份有限公司 | Preparation method of high-energy-density quick-charging graphite negative electrode material of lithium battery |
| CN116283292A (en) * | 2021-12-21 | 2023-06-23 | 湖南中科星城石墨有限公司 | Quick-charge graphite negative electrode material, preparation method thereof and lithium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792577A (en) * | 1995-11-24 | 1998-08-11 | Petoca, Ltd. | Negative electrode material for use in lithium-ion secondary battery and process for producing the same |
| CN103979527A (en) * | 2014-05-27 | 2014-08-13 | 大连宏光锂业股份有限公司 | Method for producing intermediate phase composite graphite cathode material |
| CN104140093A (en) * | 2013-05-10 | 2014-11-12 | 上海杉杉科技有限公司 | Lithium ion secondary battery negative electrode material and preparation method thereof |
| CN105680022A (en) * | 2016-03-29 | 2016-06-15 | 大连宏光锂业股份有限公司 | Production method of composite graphitic negative-electrode material containing natural oil coke |
-
2016
- 2016-08-23 CN CN201610707852.3A patent/CN106169582B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792577A (en) * | 1995-11-24 | 1998-08-11 | Petoca, Ltd. | Negative electrode material for use in lithium-ion secondary battery and process for producing the same |
| CN104140093A (en) * | 2013-05-10 | 2014-11-12 | 上海杉杉科技有限公司 | Lithium ion secondary battery negative electrode material and preparation method thereof |
| CN103979527A (en) * | 2014-05-27 | 2014-08-13 | 大连宏光锂业股份有限公司 | Method for producing intermediate phase composite graphite cathode material |
| CN105680022A (en) * | 2016-03-29 | 2016-06-15 | 大连宏光锂业股份有限公司 | Production method of composite graphitic negative-electrode material containing natural oil coke |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876709A (en) * | 2017-02-22 | 2017-06-20 | 江西紫宸科技有限公司 | A kind of preparation method of high magnification carbon negative pole material |
| CN106876709B (en) * | 2017-02-22 | 2019-11-12 | 江西紫宸科技有限公司 | A kind of preparation method of high magnification carbon negative pole material |
| CN107293697A (en) * | 2017-07-26 | 2017-10-24 | 大连宏光锂业股份有限公司 | A kind of power-type lithium ion battery negative material production method |
| CN107293697B (en) * | 2017-07-26 | 2019-07-12 | 大连宏光锂业股份有限公司 | A kind of power-type lithium ion battery negative electrode material production method |
| CN109860524A (en) * | 2017-11-30 | 2019-06-07 | 宝武炭材料科技有限公司 | A kind of method of solid asphalt low temperature cladding preparation negative electrode material |
| CN108383116A (en) * | 2018-02-11 | 2018-08-10 | 珠海光宇电池有限公司 | Artificial plumbago negative pole material and preparation method thereof and negative electrode of lithium ion battery |
| CN113422025A (en) * | 2021-06-25 | 2021-09-21 | 洛阳月星新能源科技有限公司 | Natural graphite composite material and preparation method thereof |
| CN113422025B (en) * | 2021-06-25 | 2023-02-03 | 洛阳月星新能源科技有限公司 | Natural graphite composite material and preparation method thereof |
| CN113912046A (en) * | 2021-09-30 | 2022-01-11 | 赣州市康达新能源材料有限公司 | Preparation method of artificial graphene super conductive agent |
| CN116283292A (en) * | 2021-12-21 | 2023-06-23 | 湖南中科星城石墨有限公司 | Quick-charge graphite negative electrode material, preparation method thereof and lithium ion battery |
| CN114824233A (en) * | 2022-05-31 | 2022-07-29 | 深圳市翔丰华科技股份有限公司 | Preparation method of high-energy-density quick-charging graphite negative electrode material of lithium battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106169582B (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109830669B (en) | Preparation method of high-rate artificial graphite negative electrode material | |
| CN106169582B (en) | A kind of natural needle coke composite graphite negative electrode material production method | |
| CN102593434B (en) | Composite graphite particles for lithium secondary battery and preparation method thereof | |
| CN101710632B (en) | Method for recovering and restoring anode material graphite of waste lithium ion battery | |
| CN105428615B (en) | A kind of modified artificial graphite cathode material production method | |
| CN109921018A (en) | The preparation method of sodium-ion battery high capacity biomass hard charcoal negative electrode material | |
| CN104218214B (en) | A kind of lithium ion battery negative material and preparation method thereof | |
| CN102485648B (en) | Modified graphite, composite graphite material containing the modified graphite and their preparation methods and application | |
| CN106532051B (en) | Method for preparing power lithium ion battery cathode material by using natural graphite | |
| CN107369823A (en) | A kind of lithium ion battery artificial composite cathode material of silicon/carbon/graphite and preparation method thereof | |
| CN102569755B (en) | Graphite carbon negative electrode material for lithium ion battery, and preparation method thereof | |
| CN103165869B (en) | Modification mesophase spherule negative material, lithium rechargeable battery and preparation method and application | |
| CN102195036B (en) | Surface modified graphitized interphase carbon micro-powder and preparation method thereof | |
| CN111370654B (en) | Composite graphite negative electrode material, lithium ion battery and preparation method and application thereof | |
| CN103066243A (en) | Coke powder-based cathode material of lithium ion power battery and preparation method thereof | |
| CN111293309B (en) | Performance improvement method and application of coal-based sodium ion battery negative electrode material | |
| CN102110813B (en) | Graphite material at negative pole of lithium ion battery and preparation method thereof | |
| CN112582592B (en) | High-compaction and fast-filling artificial graphite material and preparation method thereof | |
| CN102299330A (en) | Active carbon-nano silicon composite powder, synthetic method thereof and lithium ion battery prepared therefrom | |
| CN110203923A (en) | A kind of lithium ion battery negative material and preparation method thereof | |
| CN105789627A (en) | Preparation method of high-performance graphite negative electrode material for lithium ion battery | |
| CN107437613B (en) | Preparation method of microcrystalline graphite-hard carbon composite negative electrode material | |
| CN110963489A (en) | Carbon negative electrode material, preparation method thereof and lithium ion battery | |
| CN108923047A (en) | Lithium ion battery Carbon Hollow Fiber negative electrode material and its preparation method and application | |
| CN111864206B (en) | Hard carbon negative electrode material, preparation method thereof, pole piece containing hard carbon negative electrode material and lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116450 Haitang street, Huayuankou Economic Zone, Dalian, Liaoning Patentee after: Dalian Hongguang Lithium Industry Co.,Ltd. Address before: 116450 Haitang street, Huayuankou Economic Zone, Dalian, Liaoning Patentee before: DALIAN HONGGUANG LITHIUM INDUSTRY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |