CN105742599A - Silicon carbon composite material, fabrication method thereof, anode material and battery - Google Patents
Silicon carbon composite material, fabrication method thereof, anode material and battery Download PDFInfo
- Publication number
- CN105742599A CN105742599A CN201610156545.0A CN201610156545A CN105742599A CN 105742599 A CN105742599 A CN 105742599A CN 201610156545 A CN201610156545 A CN 201610156545A CN 105742599 A CN105742599 A CN 105742599A
- Authority
- CN
- China
- Prior art keywords
- composite material
- silicon
- nanoparticle
- carbon composite
- nucleocapsid structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/366—Composites as layered products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
-
- 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
-
- 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
- H01M4/582—Halogenides
-
- 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
-
- 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 relates to a silicon carbon composite material. The silicon carbon composite material comprises a three-layer core-shell structure, wherein a silicon material is arranged at the innermost layer, a metal compound is arranged at the intermediate layer, a carbon material is arranged at the outermost layer, and the silicon material is selected form one or more of silicon, a silicon oxide and a metal silicide. In the above silicon carbon composite material, the intermediate layer of the metal compound is further arranged between the silicon material and the carbon material, the interface contact between the silicon material and the carbon material is effectively improved, so that the silicon carbon composite material is more stable during the application process. The conductivity of the silicon carbon composite material is improved, and the energy density is also improved. The silicon carbon composite material is easier to be bonded with a current collector during the subsequent preparation and application process, and is difficult to be agglomerated or drop, and the cycle performance of the silicon carbon composite material is improved. The fabrication method is low in process difficulty, the device is simple, and the industrial production is facilitated. The invention also discloses a fabrication method of the above silicon carbon composite material, an anode material and a battery.
Description
Technical field
The present invention relates to field of batteries, particularly relate to a kind of Si-C composite material and preparation method thereof and negative material and battery.
Background technology
Compared with graphite cathode material traditionally, silicon has the theoretical specific capacity (4200mAh/g) of superelevation and relatively low de-lithium current potential (< 0.5V), and the voltage platform of silicon is slightly above graphite, surface analysis lithium behavior it is less likely to occur when charging, security performance is better, therefore becomes the research direction that the negative material of battery is new.
But, owing to silicon is semi-conducting material, during as cell negative electrode material, self-conductance rate is relatively low, lithium ion embedding in charge and discharge process and deviate to make silicon volume that expansion and the contraction of more than 300% occur, powder body material structure can be made to cave in gradually, ultimately result in electrode active material and depart from collector, cause that cycle performance of battery is substantially reduced.
For improving the cycle performance of silica-base material, improve cyclical stability, be maintained with its original high energy density characteristic.Generally by silica-base material Composite, form Si-C composite material.Because material with carbon element has higher electronic conductivity and ionic conductivity, the high rate performance of silica-base material can be significantly improved, it is suppressed that silicon bulk effect in cyclic process.Directly contact with electrolyte additionally, material with carbon element can intercept silicon, reduce irreversible capacity.
But, the Si-C composite material preparation technology difficulty that in traditional Si-C composite material, silicon materials and material with carbon element interracial contact between the two is poor and traditional is big, and equipment is complicated, is unfavorable for industrialized production.
Summary of the invention
Based on this, it is necessary to for the problem that in existing Si-C composite material, silicon materials and material with carbon element interracial contact between the two is poor and preparation technology difficulty is big, it is provided that a kind of interracial contact is good and prepares simple Si-C composite material.
A kind of Si-C composite material, it includes the first nucleocapsid structure, and the kernel of described first nucleocapsid structure is nanoparticle, and the shell of described first nucleocapsid structure is material with carbon element；Described nanoparticle is the second nucleocapsid structure, and the kernel of described second nucleocapsid structure is silicon materials；The shell of described second nucleocapsid structure is metallic compound；One or more in silicon, Si oxide and metal silicide of described silicon materials.
Above-mentioned Si-C composite material, including two nucleocapsid structures, say, that be additionally provided with the intermediate layer of metallic compound between silicon materials and material with carbon element, effectively improves the interracial contact between silicon materials and material with carbon element by the intermediate layer of metallic compound；Make Si-C composite material in use more stable.Above-mentioned Si-C composite material, owing to adding metallic compound, improves the electric conductivity of Si-C composite material, and its energy density also has lifting.Above-mentioned Si-C composite material, is coated with by the secondary of the nanoparticle to nucleocapsid structure, is easier to bond with collector, it is not easy to reunite or drop off, improve Si-C composite material cycle performance in follow-up dispensing use procedure.It addition, by arranging intermediate layer, thus reducing material with carbon element be directly coated on the difficulty on silicon materials surface, equipment is simple, is beneficial to industrialized production.
Wherein in an embodiment, the formula of described silicon oxide compound is SiOx, wherein, 0.5≤x≤1.5；The formula of described metal silicide is MSiy, wherein, one or more in Fe, Ni, Cr, Mn, Ti and Co of M, 0.5≤y≤2.
Wherein in an embodiment, one or more in metal-oxide and metal halide of described metallic compound.
Wherein in an embodiment, one or more in CNT, carbonaceous mesophase spherules, Graphene and hard carbon of described material with carbon element.
Wherein in an embodiment, the median particle diameter of described nanoparticle is 10-600nm.
Wherein in an embodiment, the median particle diameter of described Si-C composite material is 1-100 μm.
The preparation method that present invention also offers a kind of above-mentioned Si-C composite material.
The preparation method of a kind of Si-C composite material, comprises the steps:
Being dispersed in by metallo-organic compound in the first disperse medium, add silicon materials mix homogeneously, then spray drying obtains the first presoma；Described silicon materials are one or more in silicon, Si oxide and metal silicide；
Described first presoma is calcined at 350-1000 DEG C under atmosphere, obtains nanoparticle；
Being mixed homogeneously with bonding agent by described nanoparticle, be gradually added material with carbon element, ultrasonic disperse obtains the second presoma；
Described second presoma is sintered at 300-900 DEG C, obtains Si-C composite material.
Above-mentioned preparation method, technique is easily controlled, it is not necessary to complicated production equipment, and equipment needed thereby is few, and production capacity is big, is conducive to the industrialization large-scale production of Si-C composite material.It addition, above-mentioned preparation method, improve the utilization rate of silicon.
Wherein in an embodiment, the baking temperature of described spray drying is 100～400 DEG C.
Present invention also offers a kind of negative material.
A kind of negative material, it includes Si-C composite material provided by the present invention.
Above-mentioned negative material, owing to adopting Si-C composite material provided by the present invention, thus improving the electric conductivity of negative material, its energy density also has lifting, and cycle life increases.
Present invention also offers a kind of battery.
A kind of battery, it includes negative material provided by the present invention.
Above-mentioned battery, owing to adopting negative material provided by the present invention, its energy density is high, and has extended cycle life.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with detailed description of the invention, the present invention is further elaborated.Should be appreciated that detailed description of the invention described herein is only in order to explain the present invention, is not intended to limit the present invention.
A kind of Si-C composite material, including the first nucleocapsid structure, the kernel of this first nucleocapsid structure is nanoparticle, and the shell of this first nucleocapsid structure is material with carbon element；Nanoparticle is the second nucleocapsid structure, and the kernel of this second nucleocapsid structure is silicon materials；The shell of this second nucleocapsid structure is metallic compound.It is to say, Si-C composite material includes three-layer nuclear shell structure, its innermost layer is silicon materials, and intermediate layer is metallic compound, and outermost layer is material with carbon element.
Wherein, silicon materials are positioned at innermost layer, are the inner core of nucleocapsid structure.One or more in silicon, Si oxide and metal silicide of the silicon materials of the present invention.Silicon can select crystalline silicon, it is also possible to selects non-crystalline silicon.Silicon oxide compound, refers to the compound that silicon and oxygen are formed, and its formula is SiOx, wherein, 0 < x≤2；Preferably, 0.5≤x≤1.5.Metal silicide, refers to the compound of metal M and silicon and/or the solid solution of metal M and silicon.The formula of metal silicide is MSiy, wherein, one or more in Fe, Ni, Cr, Mn, Ti and Co of M, 0.2≤y≤4；Preferably, 0.5≤y≤2.Preferably, the median particle diameter of silicon materials is 10-300nm.It is highly preferred that the particle diameter of silicon materials is not more than 200nm.
Wherein, metallic compound refers to the inorganic compound containing metallic element.Preferably, metallic compound is the nonmetal compound of metal.It is highly preferred that one or more that metallic compound is in metal-oxide, metal halide.Such as, titanium oxide, aluminium oxide, magnesium chloride, zinc chloride, zinc oxide etc..
Wherein, material with carbon element is positioned at the outermost layer of Si-C composite material.The harmful effect that material with carbon element can be avoided silicon materials directly to contact with electrolyte and bring, owing to material with carbon element is better with the contact performance of electrolyte, thus improving the contact performance of whole Si-C composite material and electrolyte.
Material with carbon element can select various material with carbon element, for instance native graphite, Delanium, carbon black etc..Preferably, one or more in CNT, carbonaceous mesophase spherules, Graphene and hard carbon of material with carbon element.
Preferably, the phosphorus content of material with carbon element, more than 99wt%, so can further improve the performance of Si-C composite material.
Preferably, the median particle diameter of nanoparticle is 10-600nm.
Preferably, the median particle diameter of Si-C composite material is 1-100 μm.Such Si-C composite material is in follow-up cell production process, in dispensing slurry technique, it is possible to reduce agglomeration, is prone to after baking bond with collector, improves the adhesion of Si-C composite material and collector.
Above-mentioned Si-C composite material, including two nucleocapsid structures, say, that be additionally provided with the intermediate layer of metallic compound between silicon materials and material with carbon element, effectively improves the interracial contact between silicon materials and material with carbon element by the intermediate layer of metallic compound；Make Si-C composite material in use more stable.Above-mentioned Si-C composite material, owing to adding metallic compound, improves the electric conductivity of Si-C composite material, and its energy density also has lifting.Above-mentioned Si-C composite material, is coated with by the secondary of the nanoparticle to nucleocapsid structure, is easier to bond with collector, it is not easy to reunite or drop off, improve Si-C composite material cycle performance in follow-up dispensing use procedure.It addition, by arranging intermediate layer, thus reducing material with carbon element be directly coated on the difficulty on silicon materials surface, equipment is simple, is beneficial to industrialized production.
The preparation method that present invention also offers a kind of above-mentioned Si-C composite material.
The preparation method of a kind of Si-C composite material, comprises the steps:
S1, being dispersed in by metallo-organic compound in the first disperse medium, add silicon materials mix homogeneously, then spray drying obtains the first presoma；
S2, by the first presoma 350-1000 DEG C under atmosphere calcine, obtain nanoparticle；
S3, being mixed homogeneously with bonding agent by nanoparticle, be gradually added material with carbon element, ultrasonic disperse obtains the second presoma；
S4, the second presoma is sintered at 300-900 DEG C, obtain Si-C composite material.
In S1, metallo-organic compound refers to the compound that carbon atom is formed with metallic atom Direct Bonding, and bonding scheme can be covalent bond, ionic bond, fit key etc..Metallo-organic compound is the source metal of the metallic compound in nanoparticle, and in the nanoparticle that metallo-organic compound synthesizes as required, metallic compound selects suitable material.Preferably, one or more in alkyl metal cpd and metal organic complex of metallo-organic compound.Wherein, alkyl metal cpd is preferably selected from trimethyl aluminium, zinc methide etc..Metal organic complex is preferably selected from two luxuriant magnesium, the luxuriant magnesium of diformazan two etc..
In S1, the effect of the first disperse medium is, silicon materials and metallo-organic compound is uniformly dispersed, consequently facilitating metallo-organic compound overlays on the outside of silicon materials.Preferably, the first disperse medium is organic solvent, for instance ether, hexane, acetone etc..
In S1, in spray drying process, slurry dispersion formed is through spraying, drying.Preferably, the slurry of spray drying obtains through wet ball grinding.Diameter according to the nanoparticle that spray drying is formed, it is possible to the suitably rotating speed etc. of the concentration of granule, the particle diameter of abrading-ball, ball mill in the slurry of spray drying.
In spray drying, the method that slurry is carried out spray drying, as long as the method that the first disperse medium in slurry can will be made in the spraying droplets of slurry to the gas of high temperature to evaporate, then it is not particularly limited, it is possible to use common spray drying process.In spray-drying installation, such as supply desiccant gas, and the temperature in device to be remained the state of baking temperature, from the spray nozzle such as rotating disk nozzle, fluid tip to the drop of device internal spraying slurry.
In spray drying, baking temperature is preferably 100～400 DEG C, it is particularly preferred to be 110～300 DEG C, it is more preferable to be 120～200 DEG C.So can reducing the aggregation of spray drying thing, the granule making spray drying thing is less, is more beneficial for the formation of nanoparticle.
The size of the drop of slurry during for slurry being sprayed in spray drying process, selects to make the diameter of drop of the slurry that the diameter of spray drying thing preferably becomes 10-600nm.
In S2, the calcining heat of the first presoma is preferably 450～700 DEG C, and the calcination time of the first presoma is preferably 8～15h.
In S2, atmosphere can according to the first presoma and need synthesizing nano-particle to select；If containing metal oxide in such as nanoparticle, in the preferred oxygen atmosphere of atmosphere.If containing metal chloride in nanoparticle, it is preferably chlorine atmosphere at atmosphere.
In S3, the effect of binding agent is, material with carbon element adheres to the outside of nanoparticle.Preferably, one or more in polyvinylpyrrolidone, polyurethane, polyvinyl alcohol, carboxymethyl cellulose, hydroxypropyl cellulose, diacetyl cellulose, polrvinyl chloride, the polrvinyl chloride of carboxylation, polyvinyl fluoride politef, polyvinylidene fluoride of binding agent.Different in kind according to binding agent, it is possible to select to use the second dispersant.Same, the effect of the second disperse medium is, nanoparticle, binding agent and material with carbon element is uniformly dispersed, consequently facilitating material with carbon element is coated on the outside of nanoparticle.Preferably, the second disperse medium is also organic solvent.
In S4, the sintering temperature of the second presoma is preferably 400～600 DEG C, and sintering time is preferably 7～12h.
Above-mentioned preparation method, technique is easily controlled, it is not necessary to complicated production equipment, and equipment needed thereby is few, and production capacity is big, is conducive to the industrialization large-scale production of Si-C composite material.It addition, above-mentioned preparation method, improve the utilization rate of silicon.
Present invention also offers a kind of negative material.
A kind of negative material, it includes Si-C composite material provided by the present invention.
It is, of course, understood that negative material can also contain other intercalation materials of li ions, i.e. the Si-C composite material of the present invention and the composite use of other intercalation materials of li ions.Other intercalation materials of li ions, for instance natural graphite particles, negative pole titanium base material etc..
Above-mentioned negative material, owing to adopting Si-C composite material provided by the present invention, thus improving the electric conductivity of negative material, its energy density also has lifting, and cycle life increases.
Present invention also offers a kind of battery.
A kind of battery, it includes negative material provided by the present invention.
Other parts in battery and annexation thereof, all can adopt various parts known in those skilled in the art and various annexation thereof, not repeat them here！
Above-mentioned battery, owing to adopting negative material provided by the present invention, thus its energy density is high, and has extended cycle life.
Below in conjunction with specific embodiment, the present invention is further elaborated.
Embodiment one
Being scattered in hexane by metallo-organic compound (trimethyl aluminium, 8.5g), be subsequently adding silicon materials (silica flour, 10 nanometers, 200g), stirring 1h obtains slurry.Then slurry is input in spray dryer, dries at 100 DEG C and obtain the first presoma.
First presoma is sent into continuous reactor is calcined 9.5h under oxygen atmosphere at 500 DEG C；Obtain nanoparticle.
Nanoparticle, binding agent Kynoar PVDF are scattered in N-Methyl pyrrolidone NMP, then material with carbon element (CNT, 10g) are scattered in hexane, stir 1h.Then dry 3h at 110 DEG C, obtains the second presoma.
Second presoma is sent into continuous reactor sinters 11.5h at 750 DEG C.
The Si-C composite material obtained, is denoted as A1.
Embodiment two
Embodiment two is essentially identical with embodiment one, with embodiment one institute the difference is that silicon materials (SiO2, 200 nanometers, 150g), metallo-organic compound (the luxuriant magnesium of dimethyl two, 5.6g), material with carbon element (Graphene, 8g)；Other parts are identical with embodiment one.
The Si-C composite material obtained, is denoted as A2.
Embodiment three
Embodiment three is essentially identical with embodiment one, with embodiment one institute the difference is that silicon materials (SiO2, 300 nanometers, 250g), metallo-organic compound (ferrocene, 9.5g), material with carbon element (carbonaceous mesophase spherules, 12g)；Other parts are identical with embodiment one.
The Si-C composite material obtained, is denoted as A3.
Performance test
Particle diameter is tested:
Adopt MalvernMastersizer3000 particle instrument that Si-C composite material A1-A3 is carried out particle diameter test.Test result is in Table 1.
Electrochemical property test:
Adopt simulated battery that capacity and the cycle performance of Si-C composite material A1-A3 are tested.
The H being assembled in full high-purity argon gas of simulated battery2O and O2Content is respectively less than in the glove box of 0.1ppm to carry out.Adopting CR2025 type button cell is simulated battery, and using lithium sheet (purity > 99.9%), as to electrode, polyethylene monolayer film (ENTEK) is barrier film, and electrolyte is 1mol/LLiPF6The mixed solution of ethylene carbonate (EC)/dimethyl carbonate (DMC).
Adopt new prestige battery test system (specification 5V, 2mA) that the simulated battery assembled is carried out constant current charge-discharge test.Electrochemistry loop test electric current density is 100mAg-1, high rate capability test electric current density is 100～4000mA/g, and voltage range is 0.02～1.5V, and test temperature is 25 DEG C.Test result is in Table 1.
Table 1
As can be seen from the above table, Si-C composite material provided by the present invention, there is the cycle performance of excellence, and specific capacity is higher.
Claims (10)
1. a Si-C composite material, it is characterised in that described Si-C composite material includes the first nucleocapsid structure, and the kernel of described first nucleocapsid structure is nanoparticle, and the shell of described first nucleocapsid structure is material with carbon element；Described nanoparticle is the second nucleocapsid structure, and the kernel of described second nucleocapsid structure is silicon materials；The shell of described second nucleocapsid structure is metallic compound；One or more in silicon, Si oxide and metal silicide of described silicon materials.
2. Si-C composite material according to claim 1, it is characterised in that the formula of described silicon oxide compound is SiOx, wherein, 0.5≤x≤1.5；The formula of described metal silicide is MSiy, wherein, one or more in Fe, Ni, Cr, Mn, Ti and Co of M, 0.5≤y≤2.
3. Si-C composite material according to claim 1, it is characterised in that one or more in metal-oxide and metal halide of described metallic compound.
4. Si-C composite material according to claim 1, it is characterised in that one or more in CNT, carbonaceous mesophase spherules, Graphene and hard carbon of described material with carbon element.
5. Si-C composite material according to claim 1, it is characterised in that the median particle diameter of described nanoparticle is 10-600nm.
6. Si-C composite material according to claim 1, it is characterised in that the median particle diameter of described Si-C composite material is 1-100 μm.
7. the preparation method of the Si-C composite material described in a claim 1, it is characterised in that comprise the steps:
Being dispersed in by metallo-organic compound in the first disperse medium, add silicon materials mix homogeneously, then spray drying obtains the first presoma；Described silicon materials are one or more in silicon, Si oxide and metal silicide；
Described first presoma is calcined at 350-1000 DEG C under atmosphere, obtains nanoparticle；
Being mixed homogeneously with bonding agent by described nanoparticle, be gradually added material with carbon element, ultrasonic disperse obtains the second presoma；
Described second presoma is sintered at 300-900 DEG C, obtains Si-C composite material.
8. preparation method according to claim 7, it is characterised in that the baking temperature of described spray drying is 100～400 DEG C.
9. a negative material, it is characterised in that described negative material includes the Si-C composite material described in claim 1～7.
10. a battery, it is characterised in that described battery includes the negative material described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156545.0A CN105742599B (en) | 2016-03-18 | 2016-03-18 | Si-C composite material and preparation method thereof and negative electrode material and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156545.0A CN105742599B (en) | 2016-03-18 | 2016-03-18 | Si-C composite material and preparation method thereof and negative electrode material and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105742599A true CN105742599A (en) | 2016-07-06 |
| CN105742599B CN105742599B (en) | 2019-04-26 |
Family
ID=56250876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156545.0A Active CN105742599B (en) | 2016-03-18 | 2016-03-18 | Si-C composite material and preparation method thereof and negative electrode material and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105742599B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492651A (en) * | 2017-09-05 | 2017-12-19 | 中国科学院物理研究所 | A kind of nano-silicon negative material of double-coating and its preparation method and application |
| CN107623104A (en) * | 2017-09-25 | 2018-01-23 | 常州市宇科不绣钢有限公司 | A kind of structure silicon-based negative material of multi-buffer and preparation method thereof |
| CN108023074A (en) * | 2017-11-29 | 2018-05-11 | 上海汽车集团股份有限公司 | A kind of silicon based composite material with nanometer hierarchical structure and its preparation method and application |
| CN108807927A (en) * | 2018-06-25 | 2018-11-13 | 南通百川新材料有限公司 | A kind of silicon-carbon composite cathode material and preparation method thereof |
| CN109638254A (en) * | 2018-12-17 | 2019-04-16 | 宁德新能源科技有限公司 | Negative electrode material and the electrochemical appliance and electronic device for using it |
| CN109841803A (en) * | 2017-11-28 | 2019-06-04 | 宁德时代新能源科技股份有限公司 | Silicon-carbon composite material, preparation method thereof and secondary battery containing material |
| CN109888224A (en) * | 2019-02-27 | 2019-06-14 | 福建翔丰华新能源材料有限公司 | A kind of lithium ion battery negative material preparation method of silicon oxygen carbon and alumina composite |
| CN110391399A (en) * | 2018-04-17 | 2019-10-29 | 通用汽车环球科技运作有限责任公司 | The method for preparing lithium anodes |
| CN110416515A (en) * | 2019-07-24 | 2019-11-05 | 东莞东阳光科研发有限公司 | Lithium ion battery, lithium ion battery negative material and preparation method |
| CN111146421A (en) * | 2019-12-26 | 2020-05-12 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device comprising same |
| WO2020187040A1 (en) * | 2019-03-19 | 2020-09-24 | Ningde Amperex Technology Limited | Anode material, and electrochemical device and electronic device using the same |
| CN113036137A (en) * | 2021-03-05 | 2021-06-25 | 昆山宝创新能源科技有限公司 | Lithium ion battery cathode material and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594690A (en) * | 2012-08-14 | 2014-02-19 | 国立大学法人蔚山科学技术大学校产学协力团 | Negative electrode active material for rechargeable lithium battery, method for preparing the same, and rechargeable lithium battery including the same |
| US20140057176A1 (en) * | 2012-08-23 | 2014-02-27 | Samsung Sdi Co., Ltd. | Silicon-based negative active material, preparing method of preparing same and rechargeable lithium battery including same |
| CN104022266A (en) * | 2014-05-27 | 2014-09-03 | 奇瑞汽车股份有限公司 | Silicon-based cathode composite material and preparation method thereof |
| CN104716307A (en) * | 2013-12-12 | 2015-06-17 | 国立大学法人蔚山科学技术大学校产学协力团 | Negative electrode active material, method for manufacturing the same, and lithium rechargable battery including the same |
| CN104716312A (en) * | 2015-03-11 | 2015-06-17 | 中国科学院化学研究所 | Silicon-carbon composite material for lithium ion battery, preparation method and application of silicon-carbon composite material |
| CN105355875A (en) * | 2015-11-05 | 2016-02-24 | 盐城工学院 | Tungsten oxide nanowire wound composite material, preparation method and application |
-
2016
- 2016-03-18 CN CN201610156545.0A patent/CN105742599B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594690A (en) * | 2012-08-14 | 2014-02-19 | 国立大学法人蔚山科学技术大学校产学协力团 | Negative electrode active material for rechargeable lithium battery, method for preparing the same, and rechargeable lithium battery including the same |
| US20140057176A1 (en) * | 2012-08-23 | 2014-02-27 | Samsung Sdi Co., Ltd. | Silicon-based negative active material, preparing method of preparing same and rechargeable lithium battery including same |
| CN104716307A (en) * | 2013-12-12 | 2015-06-17 | 国立大学法人蔚山科学技术大学校产学协力团 | Negative electrode active material, method for manufacturing the same, and lithium rechargable battery including the same |
| CN104022266A (en) * | 2014-05-27 | 2014-09-03 | 奇瑞汽车股份有限公司 | Silicon-based cathode composite material and preparation method thereof |
| CN104716312A (en) * | 2015-03-11 | 2015-06-17 | 中国科学院化学研究所 | Silicon-carbon composite material for lithium ion battery, preparation method and application of silicon-carbon composite material |
| CN105355875A (en) * | 2015-11-05 | 2016-02-24 | 盐城工学院 | Tungsten oxide nanowire wound composite material, preparation method and application |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492651A (en) * | 2017-09-05 | 2017-12-19 | 中国科学院物理研究所 | A kind of nano-silicon negative material of double-coating and its preparation method and application |
| CN107623104A (en) * | 2017-09-25 | 2018-01-23 | 常州市宇科不绣钢有限公司 | A kind of structure silicon-based negative material of multi-buffer and preparation method thereof |
| CN109841803A (en) * | 2017-11-28 | 2019-06-04 | 宁德时代新能源科技股份有限公司 | Silicon-carbon composite material, preparation method thereof and secondary battery containing material |
| CN109841803B (en) * | 2017-11-28 | 2021-12-07 | 宁德时代新能源科技股份有限公司 | Silicon-carbon composite material, preparation method thereof and secondary battery containing material |
| CN108023074A (en) * | 2017-11-29 | 2018-05-11 | 上海汽车集团股份有限公司 | A kind of silicon based composite material with nanometer hierarchical structure and its preparation method and application |
| CN110391399A (en) * | 2018-04-17 | 2019-10-29 | 通用汽车环球科技运作有限责任公司 | The method for preparing lithium anodes |
| CN108807927B (en) * | 2018-06-25 | 2021-10-15 | 南通百川新材料有限公司 | Silicon-carbon composite negative electrode material and preparation method thereof |
| CN108807927A (en) * | 2018-06-25 | 2018-11-13 | 南通百川新材料有限公司 | A kind of silicon-carbon composite cathode material and preparation method thereof |
| EP3878036A4 (en) * | 2018-12-17 | 2022-01-05 | Ningde Amperex Technology Limited | Anode material, electrochemical device and electronic device using the same |
| CN109638254A (en) * | 2018-12-17 | 2019-04-16 | 宁德新能源科技有限公司 | Negative electrode material and the electrochemical appliance and electronic device for using it |
| WO2020125621A1 (en) * | 2018-12-17 | 2020-06-25 | Ningde Amperex Technology Limited | Anode material, electrochemical device and electronic device using the same |
| JP7253616B2 (en) | 2018-12-17 | 2023-04-06 | 寧徳新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device using the same |
| CN109638254B (en) * | 2018-12-17 | 2020-09-25 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device using same |
| CN111987296A (en) * | 2018-12-17 | 2020-11-24 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device using same |
| CN111987296B (en) * | 2018-12-17 | 2021-05-18 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device using same |
| JP2022504017A (en) * | 2018-12-17 | 2022-01-13 | 寧徳新能源科技有限公司 | Negative electrode material, and electrochemical and electronic devices using it |
| CN109888224A (en) * | 2019-02-27 | 2019-06-14 | 福建翔丰华新能源材料有限公司 | A kind of lithium ion battery negative material preparation method of silicon oxygen carbon and alumina composite |
| US20220173386A1 (en) * | 2019-03-19 | 2022-06-02 | Ningde Amperex Technology Limited | Anode material, and electrochemical device and electronic device using the same |
| CN114975980A (en) * | 2019-03-19 | 2022-08-30 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device using same |
| WO2020187040A1 (en) * | 2019-03-19 | 2020-09-24 | Ningde Amperex Technology Limited | Anode material, and electrochemical device and electronic device using the same |
| EP3942629A4 (en) * | 2019-03-19 | 2024-02-28 | Ningde Amperex Technology Ltd | Anode material, and electrochemical device and electronic device using the same |
| CN110416515A (en) * | 2019-07-24 | 2019-11-05 | 东莞东阳光科研发有限公司 | Lithium ion battery, lithium ion battery negative material and preparation method |
| CN110416515B (en) * | 2019-07-24 | 2022-03-04 | 东莞东阳光科研发有限公司 | Lithium ion battery, lithium ion battery cathode material and preparation method |
| CN111146421A (en) * | 2019-12-26 | 2020-05-12 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device comprising same |
| CN111146421B (en) * | 2019-12-26 | 2022-03-18 | 宁德新能源科技有限公司 | Negative electrode material, and electrochemical device and electronic device comprising same |
| CN113036137A (en) * | 2021-03-05 | 2021-06-25 | 昆山宝创新能源科技有限公司 | Lithium ion battery cathode material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105742599B (en) | 2019-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105742599A (en) | Silicon carbon composite material, fabrication method thereof, anode material and battery | |
| Chen et al. | Chen et al. | |
| US11791461B2 (en) | Composite silicon negative electrode material, preparation method and use | |
| He et al. | Preparation and electrochemical properties of Ag-modified TiO2 nanotube anode material for lithium–ion battery | |
| WO2021088168A1 (en) | Lithium supplement material and positive electrode comprising same | |
| CN100530780C (en) | Composite lithium titanate electrode material and preparation method thereof | |
| JP5742935B2 (en) | Positive electrode active material particles, and positive electrode and all solid state battery using the same | |
| Xu et al. | The preparation and role of Li2ZrO3 surface coating LiNi0. 5Co0. 2Mn0. 3O2 as cathode for lithium-ion batteries | |
| TW201820688A (en) | Cathode slurry for lithium ion battery | |
| CN109585781A (en) | A kind of lithium ion battery negative electrode and the lithium ion battery using the pole piece | |
| CN106099098B (en) | High-voltage positive electrode material Li of lithium ion batteryδCo1-xMgxO2@AlF3And method for preparing the same | |
| JP2018098173A (en) | Spherical or pseudo-spherical lithium battery positive electrode material, battery, manufacturing method, and application | |
| CN107565112A (en) | A kind of preparation method of graphene coated lithium ion secondary battery anode material | |
| WO2015027692A1 (en) | Composite negative electrode material of lithium-ion battery, preparation method therefor, and lithium-ion battery | |
| WO2022199389A1 (en) | Silicon-oxygen composite negative electrode material, preparation method therefor, and lithium ion battery | |
| CN102983313A (en) | Silicon-carbon composite material and preparation method thereof, and lithium ion battery | |
| CN112542589B (en) | Preparation method, product and application of positive electrode prelithiation material | |
| CN103137976B (en) | Nano composite material and preparation method thereof and positive electrode and battery | |
| Li et al. | Spray pyrolysis synthesis of nickel-rich layered cathodes LiNi1− 2xCoxMnxO2 (x= 0.075, 0.05, 0.025) for lithium-ion batteries | |
| CN102983317A (en) | Silicon-based composite material and preparation method thereof, silicon-carbon composite material and lithium ion battery | |
| CN104993118A (en) | Synthesizing method for lithium-ion negative electrode material of Li4Ti5O12/C | |
| Zeng et al. | Cave-embedded porous Mn2O3 hollow microsphere as anode material for lithium ion batteries | |
| WO2020108132A1 (en) | Nitrided lithium titanate-nitrided aluminum oxide composite material, preparation method therefor and application thereof | |
| CN107146875A (en) | A kind of heat chemistry blocking-up type composite positive pole, anode pole piece and preparation method thereof, lithium ion battery | |
| CN105006555A (en) | Preparation method of compound lithium titanate anode material doped with metallic tin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160720 Address after: Suzhou City, Jiangsu province 215000 Suzhou Industrial Park No. 58 Building 2 Zhong Hui Lu room 125 Applicant after: SUZHOU GCL SYSTEM INTEGRATION TECHNOLOGY INDUSTRIAL APPLICATION RESEARCH INSTITUTE Co.,Ltd. Applicant after: GCL INTEGRATION TECHNOLOGY (SUZHOU) Co.,Ltd. Applicant after: GCL SYSTEM INTEGRATION TECHNOLOGY Co.,Ltd. Applicant after: SUZHOU GCL SYSTEM INTEGRATION ENERGY STORAGE TECHNOLOGY CO.,LTD. Address before: Suzhou City, Jiangsu province 215000 Suzhou Industrial Park No. 58 Building 2 Zhong Hui Lu room 125 Applicant before: SUZHOU GCL SYSTEM INTEGRATION TECHNOLOGY INDUSTRIAL APPLICATION RESEARCH INSTITUTE Co.,Ltd. Applicant before: GCL INTEGRATION TECHNOLOGY (SUZHOU) Co.,Ltd. Applicant before: GCL SYSTEM INTEGRATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230925 Address after: 9th Floor, Building A, No. 68 Fujingtian Road, Suzhou Industrial Park, Suzhou City, Jiangsu Province, 215000 Patentee after: GCL Energy Storage Technology (Suzhou) Co.,Ltd. Address before: Room 125, building 2, No.58, Zhonghui Road, Suzhou Industrial Park, Suzhou, Jiangsu 215000 Patentee before: SUZHOU GCL SYSTEM INTEGRATION TECHNOLOGY INDUSTRIAL APPLICATION RESEARCH INSTITUTE Co.,Ltd. Patentee before: GCL INTEGRATION TECHNOLOGY (SUZHOU) Co.,Ltd. Patentee before: GCL SYSTEM INTEGRATION TECHNOLOGY Co.,Ltd. Patentee before: SUZHOU GCL SYSTEM INTEGRATION ENERGY STORAGE TECHNOLOGY CO.,LTD. |