CN109360955A - A kind of aluminum cell silicon based anode material and preparation method thereof - Google Patents
A kind of aluminum cell silicon based anode material and preparation method thereof Download PDFInfo
- Publication number
- CN109360955A CN109360955A CN201811152636.2A CN201811152636A CN109360955A CN 109360955 A CN109360955 A CN 109360955A CN 201811152636 A CN201811152636 A CN 201811152636A CN 109360955 A CN109360955 A CN 109360955A
- Authority
- CN
- China
- Prior art keywords
- aluminum cell
- cell silicon
- silicon substrate
- solution
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- 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
-
- 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
-
- 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 present invention relates to technical field of material, and disclose a kind of aluminum cell silicon based anode material and preparation method thereof, step 1: choose raw material；Step 2: raw material mixing；Step 3: conduction weaving；Step 4: it is dried；Step 5: calcination processing；Step 6: cooling treatment；Step 7: packing and storing.The aluminum cell silicon based anode material and preparation method thereof, the excessive quality for influencing aluminum cell silicon substrate rod product and being formed of distinguished and admirable pressure can effectively be avoided, it enables to calcine out the phenomenon that aluminum cell silicon substrate stick will not generate cracking simultaneously, so as to improve the quality of aluminum cell silicon substrate stick, and to the good cooling results of product.
Description
Technical field
The present invention relates to technical field of material, specially a kind of aluminum cell silicon based anode material and preparation method thereof.
Background technique
Lithium battery (i.e. lithium ion battery) is one kind using carbon active material as cathode, makees anode with the compound containing lithium
Can charge and discharge battery.Its charge and discharge process, the as insertion of lithium ion and deintercalation process: when charging, lithium ion is de- from anode
It is embedding, by electrolyte and diaphragm, it is embedded in cathode, the lithium ion being embedded in cathode is more, and the charge specific capacity of battery is higher；Instead
It, when electric discharge, lithium ion is from cathode deintercalation, and by electrolyte and diaphragm, insertion anode, the lithium ion of deintercalation is got over from cathode
More, the specific discharge capacity of battery is higher.As it can be seen that charge and discharge of the embedding lithium capacity (i.e. specific capacity) of lithium cell cathode material to battery
Performance has important influence.Graphitic conductive is good, has layer structure, is very suitable for the insertion and deintercalation of lithium ion, but its
Specific capacity is lower, only 372mAh/g, causes the specific capacity of lithium battery lower.
And silica-base material has height ratio capacity, up to 4200mAh/g, however the process of insertion and deintercalation in lithium ion
In, this material exists and has very big bulk effect (cubical expansivity is up to 300%-400%), leads to charging and discharging lithium battery
It due to the dusting of silica-base material and falls off in the process, on the one hand influences the connection between active material and collector, be unfavorable for electricity
Son transmission；On the other hand make the solid electrolyte interface film (solid formed between silica-base material and electrolyte
Electrolyte interface, abbreviation SEI) film progressive additive, it is unfavorable for improving lithium battery capacity, causes following for lithium battery
Ring performance sharply declines.
The prior art by by carbon and silicon carry out it is compound carbon silicon composite cathode material is prepared, make with relative resilient knot
The carbon of structure and the gap buffer the bulk effect of silicon, improve the cycle performance of silicon, its step are as follows: (1) mixing: by organic carbon
Presoma is mixed with silicon powder, obtains the mixture of organic carbon matrix precursor and silicon powder；(2) it coats: by said mixture in indifferent gas
The carbonization of atmosphere high temperature, obtains the composite material of the close coated Si of porous carbon layer；(3) corrode: removing the porous carbon with corrosive liquid
Part silicon in the composite material of the close coated Si of layer, obtains carbon silicon composite cathode material, the carbon and silicon are in the mistake made
Cheng Xiaoguo is poor, so as to cause the of poor quality of manufactured aluminum cell silicon substrate stick.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of aluminum cell silicon based anode material and preparation method thereof, tools
It is standby effectively to avoid the excessive quality for influencing aluminum cell silicon substrate rod product and being formed of distinguished and admirable pressure, while enabling to calcine
Aluminum cell silicon substrate stick will not generate the phenomenon that cracking out, so as to improve the quality of aluminum cell silicon substrate stick, and to product
Good cooling results the advantages that, solve now on the market carbon and silicon it is poor in the process effect made, so as to cause system
At aluminum cell silicon substrate stick ropy problem.
(2) technical solution
In order to achieve the above object, the invention provides the following technical scheme: a kind of preparation of aluminum cell silicon based anode material
Method, the specific steps are as follows:
Step 1: choosing raw material, chooses the nano-silicon of 15wt%~60wt% and the phenolic aldehyde tree of 30wt%~80wt%
Rouge, weighs the nano-silicon of 15g and the phenolic resin of 35g by minisize electronic scales, and by 15wt%~60wt% after selection
Nano-silicon and the phenolic resin of 30wt%~80wt% be each placed in holding vessel that there are spare；
Step 2: raw material mixing；The nano-silicon of 15wt%~60wt% and 30wt% after step 1 is chosen~
The phenolic resin of 80wt% is placed in blending tank together to be mixed, by the nano-silicon of 15wt%~60wt% and
When the phenolic resin of 30wt%~80wt% is put into blending tank, oxide solution is put into inside blending tank；
Step 3: conduction weaving is put into conductive agent solution the solution that step 2 is mixed to get, conducting solution is to put
Enter in the fluid reservoir of sealing, in order to avoid it is extraneous it is distinguished and admirable enter fluid reservoir in influence the conductive weaving effect of solution,
Solution is by forming slurry after conduction；
Step 4: being dried, slurry made of step 3 be dried, main using processing is air-dried, and will starch
Material is placed in apparatus for drying, and the inside of apparatus for drying is equipped with temperature control system, so that the temperature air-dried in control equipment is protected
Card is in normal temperature state, and in addition the inside of air-drying device is equipped with the mold of aluminum cell silicon substrate stick, after slurry will air-dry in mold
Aluminum cell silicon substrate stick is formed, the air drying system in air-drying device is relatively uniform, can effectively avoid the excessive shadow of distinguished and admirable pressure
Ring the quality that aluminum cell silicon substrate rod product is formed；
Step 5: calcination processing；The aluminum cell silicon substrate rod product that step 4 obtains is placed in calcining furnace and is calcined,
Calcining furnace is multilayer, can increase the product quantity calcined every time, the temperature of calcining furnace is in state is gradually risen, so that calcining
Aluminum cell silicon substrate stick will not generate the phenomenon that cracking out, so as to improve the quality of aluminum cell silicon substrate stick；
Step 6: the calcined aluminum cell silicon substrate stick of step 5 is rapidly cooled by cooling treatment, and cooling device is main
Using water-cooling system, there are multiple equally distributed water cooling tubes in the internal arrangement of cooling tank, the inside of multiple water cooling tubes, which is passed through, to be followed
The water of ring, also to ensure that the cooling effect inside cooling tank, the inside of cooling tank is equipped with agitation fan, and agitation fan can
So that the cold airflow in cold wind tank is uniform；
Step 7: aluminum cell silicon substrate stick after cooling is packaged by packing and storing, and classified storage, in the mistake of packing
Should be avoided in journey to aluminum cell silicon substrate bastinade packet tension, thus avoid during transportation between aluminum cell silicon substrate stick by
Power is excessive to be easy to cause damage, under should also be as being stored in normal temperature state in storage.
Preferably, the oxide solution is silica, the production specific steps of silicon dioxde solution are as follows: 1, logical first
It crosses and pulverizes machine and pulverize silica, the purpose pulverized is mainly so that silica is quickly dissolved in the water；2, so
The silica after pulverizing is placed in dissolving tank again afterwards and is dissolved, the inside of dissolving tank is equipped with heating equipment, for accelerating two
The solution rate of silica.
Preferably, the conducting solution is mainly based on carbon material.
A kind of aluminum cell silicon based anode material, including the aluminum cell silicon-based anode any in the claims 1-3
Material.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of aluminum cell silicon based anode material and preparation method thereof, have with
It is lower the utility model has the advantages that
1, the preparation method of the aluminum cell silicon based anode material passes through step 1: choosing raw material；Step 2: raw material mixing；
Step 3: conduction weaving；Step 4: it is dried；Step 5: calcination processing；Step 6: cooling treatment；Step 7: packaging storage
It deposits, can effectively avoid the excessive quality for influencing aluminum cell silicon substrate rod product and being formed of distinguished and admirable pressure, while enabling to forge
The phenomenon that aluminum cell silicon substrate stick will not generate cracking is burnt, so as to improve the quality of aluminum cell silicon substrate stick, and to production
The good cooling results of product.
Detailed description of the invention
Fig. 1 is a kind of preparation method flow chart of aluminum cell silicon based anode material proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of preparation method of aluminum cell silicon based anode material, the specific steps are as follows:
Step 1: choosing raw material, chooses the nano-silicon of 15wt%~60wt% and the phenolic aldehyde tree of 30wt%~80wt%
Rouge, weighs the nano-silicon of 15g and the phenolic resin of 35g by minisize electronic scales, and by 15wt%~60wt% after selection
Nano-silicon and the phenolic resin of 30wt%~80wt% be each placed in holding vessel that there are spare；
Step 2: raw material mixing；The nano-silicon of 15wt%~60wt% and 30wt% after step 1 is chosen~
The phenolic resin of 80wt% is placed in blending tank together to be mixed, by the nano-silicon of 15wt%~60wt% and
When the phenolic resin of 30wt%~80wt% is put into blending tank, oxide solution is put into inside blending tank；
Step 3: conduction weaving is put into conductive agent solution the solution that step 2 is mixed to get, conducting solution is to put
Enter in the fluid reservoir of sealing, in order to avoid it is extraneous it is distinguished and admirable enter fluid reservoir in influence the conductive weaving effect of solution,
Solution is by forming slurry after conduction；
Step 4: being dried, slurry made of step 3 be dried, main using processing is air-dried, and will starch
Material is placed in apparatus for drying, and the inside of apparatus for drying is equipped with temperature control system, so that the temperature air-dried in control equipment is protected
Card is in normal temperature state, and in addition the inside of air-drying device is equipped with the mold of aluminum cell silicon substrate stick, after slurry will air-dry in mold
Aluminum cell silicon substrate stick is formed, the air drying system in air-drying device is relatively uniform, can effectively avoid the excessive shadow of distinguished and admirable pressure
Ring the quality that aluminum cell silicon substrate rod product is formed；
Step 5: calcination processing；The aluminum cell silicon substrate rod product that step 4 obtains is placed in calcining furnace and is calcined,
Calcining furnace is multilayer, can increase the product quantity calcined every time, the temperature of calcining furnace is in state is gradually risen, so that calcining
Aluminum cell silicon substrate stick will not generate the phenomenon that cracking out, so as to improve the quality of aluminum cell silicon substrate stick；
Step 6: the calcined aluminum cell silicon substrate stick of step 5 is rapidly cooled by cooling treatment, and cooling device is main
Using water-cooling system, there are multiple equally distributed water cooling tubes in the internal arrangement of cooling tank, the inside of multiple water cooling tubes, which is passed through, to be followed
The water of ring, also to ensure that the cooling effect inside cooling tank, the inside of cooling tank is equipped with agitation fan, and agitation fan can
So that the cold airflow in cold wind tank is uniform；
Step 7: aluminum cell silicon substrate stick after cooling is packaged by packing and storing, and classified storage, in the mistake of packing
Should be avoided in journey to aluminum cell silicon substrate bastinade packet tension, thus avoid during transportation between aluminum cell silicon substrate stick by
Power is excessive to be easy to cause damage, under should also be as being stored in normal temperature state in storage.
Oxide solution is silica, the production specific steps of silicon dioxde solution are as follows: 1, first by pulverizing machine
Silica is pulverized, the purpose pulverized is mainly so that silica is quickly dissolved in the water；2, it then will pulverize again
Silica afterwards, which is placed in dissolving tank, to be dissolved, and the inside of dissolving tank is equipped with heating equipment, for accelerating the molten of silica
Solve speed.
Conducting solution is mainly based on carbon material.
A kind of aluminum cell silicon based anode material, including the aluminum cell silicon-based anode any in the claims 1-3
Material.
In conclusion the preparation method of the aluminum cell silicon based anode material, passes through step 1: choosing raw material；Step 2: former
Material mixing；Step 3: conduction weaving；Step 4: it is dried；Step 5: calcination processing；Step 6: cooling treatment；Step
Seven: packing and storing can effectively avoid the excessive quality for influencing aluminum cell silicon substrate rod product and being formed of distinguished and admirable pressure, while energy
Enough so that calcining out the phenomenon that aluminum cell silicon substrate stick will not generate cracking, so as to improve the quality of aluminum cell silicon substrate stick,
And to the good cooling results of product.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of preparation method of aluminum cell silicon based anode material, the specific steps are as follows:
Step 1: choosing raw material, chooses the nano-silicon of 15wt%~60wt% and the phenolic resin of 30wt%~80wt%, leads to
It crosses minisize electronic scales and weighs the nano-silicon of 15g and the phenolic resin of 35g, and by the nanometer of 15wt%~60wt% after selection
The phenolic resin of silicon and 30wt%~80wt% are each placed in holding vessel that there are spare；
Step 2: raw material mixing；The nano-silicon of 15wt%~60wt% is with 30wt%~80wt%'s after step 1 is chosen
Phenolic resin is placed in blending tank is mixed together, by the nano-silicon of 15wt%~60wt% and 30wt%~
When the phenolic resin of 80wt% is put into blending tank, oxide solution is put into inside blending tank；
Step 3: conduction weaving is put into conductive agent solution the solution that step 2 is mixed to get, conducting solution is to be placed in
In the fluid reservoir of sealing, in order to avoid it is extraneous it is distinguished and admirable enter fluid reservoir in influence the conductive weaving effect of solution, solution
By forming slurry after conduction；
Step 4: being dried, slurry made of step 3 be dried, main using processing is air-dried, and slurry is put
Enter in apparatus for drying, the inside of apparatus for drying is equipped with temperature control system, so that the temperature air-dried in control equipment guarantees
Normal temperature state, in addition the inside of air-drying device is equipped with the mold of aluminum cell silicon substrate stick, and slurry can be formed after air-drying in mold
Aluminum cell silicon substrate stick, the air drying system in air-drying device is relatively uniform, can effectively avoid the excessive influence aluminium of distinguished and admirable pressure
The quality that battery silicon substrate rod product is formed；
Step 5: calcination processing；The aluminum cell silicon substrate rod product that step 4 obtains is placed in calcining furnace and is calcined, is calcined
Furnace is multilayer, can increase the product quantity calcined every time, the temperature of calcining furnace is in state is gradually risen, so that calcining out aluminium
The phenomenon that battery silicon substrate stick will not generate cracking, so as to improve the quality of aluminum cell silicon substrate stick；
Step 6: the calcined aluminum cell silicon substrate stick of step 5 is rapidly cooled by cooling treatment, and cooling device mainly uses
Water-cooling system has multiple equally distributed water cooling tubes in the internal arrangement of cooling tank, and the inside of multiple water cooling tubes is passed through circulation
Water, also to ensure that the cooling effect inside cooling tank, the inside of cooling tank is equipped with agitation fan, and agitation fan enables to
Cold airflow in cold wind tank is uniform；
Step 7: aluminum cell silicon substrate stick after cooling is packaged by packing and storing, and classified storage, during packing
It should avoid to aluminum cell silicon substrate bastinade packet tension, to avoid during transportation to stress mistake between aluminum cell silicon substrate stick
It is be easy to cause damage greatly, under should also be as being stored in normal temperature state in storage.
2. a kind of preparation method of aluminum cell silicon based anode material according to claim 1, it is characterised in that: the oxidation
Object solution is silica, the production specific steps of silicon dioxde solution are as follows: 1, first by pulverize machine by silica into
Row pulverizes, and the purpose pulverized is mainly so that silica is quickly dissolved in the water；2, then again by the silica after pulverizing
It is placed in dissolving tank and dissolves, the inside of dissolving tank is equipped with heating equipment, for accelerating the solution rate of silica.
3. a kind of preparation method of aluminum cell silicon based anode material according to claim 1, it is characterised in that: the conduction
Solution is mainly based on carbon material.
4. a kind of aluminum cell silicon based anode material, including the aluminum cell silicon-based anode material any in the claims 1-3
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811152636.2A CN109360955A (en) | 2018-09-29 | 2018-09-29 | A kind of aluminum cell silicon based anode material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811152636.2A CN109360955A (en) | 2018-09-29 | 2018-09-29 | A kind of aluminum cell silicon based anode material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109360955A true CN109360955A (en) | 2019-02-19 |
Family
ID=65348236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811152636.2A Pending CN109360955A (en) | 2018-09-29 | 2018-09-29 | A kind of aluminum cell silicon based anode material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109360955A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040227264A1 (en) * | 2003-05-16 | 2004-11-18 | Caisong Zou | Methods for fabricating improved graphite granules |
| CN101894940A (en) * | 2010-08-03 | 2010-11-24 | 哈尔滨工业大学 | Porous silicon-based cathode for lithium battery and preparation method thereof |
| CN104112847A (en) * | 2014-07-03 | 2014-10-22 | 奇瑞汽车股份有限公司 | Silicon-based negative electrode material and method thereof |
| CN105406074A (en) * | 2015-12-09 | 2016-03-16 | 江苏科技大学 | Secondary ion battery with graphene composite electrode as positive electrode and preparation method |
-
2018
- 2018-09-29 CN CN201811152636.2A patent/CN109360955A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040227264A1 (en) * | 2003-05-16 | 2004-11-18 | Caisong Zou | Methods for fabricating improved graphite granules |
| CN101894940A (en) * | 2010-08-03 | 2010-11-24 | 哈尔滨工业大学 | Porous silicon-based cathode for lithium battery and preparation method thereof |
| CN104112847A (en) * | 2014-07-03 | 2014-10-22 | 奇瑞汽车股份有限公司 | Silicon-based negative electrode material and method thereof |
| CN105406074A (en) * | 2015-12-09 | 2016-03-16 | 江苏科技大学 | Secondary ion battery with graphene composite electrode as positive electrode and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 刘瑞堂: "《机械零件失效分析与实例》", 28 February 2015 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106025222B (en) | A kind of preparation method of the silicon of cladding/carbon graphite composite negative pole material | |
| JP6493853B2 (en) | Lithium nickel cobalt aluminum oxide composite positive electrode material, method for producing the same, and lithium ion secondary battery | |
| CN107814383B (en) | Modified microcrystalline graphite negative electrode material for lithium ion battery and preparation method and application thereof | |
| CN101916845B (en) | Hard carbon material for power and energy-storage battery and preparation method thereof | |
| CN105609730B (en) | A kind of preparation method of silicon/carbon graphite composite negative pole material | |
| CN102479949B (en) | Anode active material of lithium ion battery, preparation method thereof and lithium ion battery | |
| CN103346324B (en) | Lithium ion battery cathode material and its preparation method | |
| CN104752698B (en) | A kind of Si-C composite material for negative electrode of lithium ion battery and preparation method thereof | |
| WO2016201940A1 (en) | Preparation method for carbon/graphite composite anode material | |
| CN105470474B (en) | A kind of composite negative pole material of high-capacity lithium ion cell and preparation method thereof | |
| CN101800304B (en) | Different-orientation spherical natural graphite negative electrode material and preparation method thereof | |
| CN112751029A (en) | Silica composite negative electrode material, preparation method thereof and lithium ion battery | |
| CN102479948A (en) | Cathode active material of lithium ion battery, preparation method thereof and lithium ion battery | |
| CN102891297A (en) | Silicon-carbon composite material for lithium ion battery and preparation method thereof | |
| CN108328613A (en) | A kind of method and negative material producing graphite cathode material using needle coke | |
| CN109560263A (en) | A kind of preparation method of oxide coated by zinc silicium cathode material | |
| WO2016202164A1 (en) | Preparation method for preparing composite carbon/graphite/tin negative-electrode material | |
| CN104993118A (en) | Synthesizing method for lithium-ion negative electrode material of Li4Ti5O12/C | |
| CN110148743A (en) | A kind of silicon-carbon composite cathode material and preparation method thereof and lithium ion battery | |
| CN103259005A (en) | Method for preparing high-capacity high-magnification lithium ion battery cathode material | |
| CN112952048A (en) | Silicon-carbon composite negative electrode material, preparation method thereof, electrode and secondary battery | |
| CN115036493A (en) | Composite coating agent for positive electrode material, high-nickel single crystal positive electrode material and battery | |
| CN104882590A (en) | Preparation method of carbon/ graphite/ silicon composited anode material | |
| CN109192937A (en) | A kind of preparation method of silicon-carbon cathode material | |
| CN110416501B (en) | Electrostatic self-assembly three-dimensional flower-shaped cobalt disulfide/rGO composite material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190219 |
|
| RJ01 | Rejection of invention patent application after publication |