CN103545492B - The preparation method of the multiple composite anode material of lithium ion battery - Google Patents
The preparation method of the multiple composite anode material of lithium ion battery Download PDFInfo
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- CN103545492B CN103545492B CN201310511216.XA CN201310511216A CN103545492B CN 103545492 B CN103545492 B CN 103545492B CN 201310511216 A CN201310511216 A CN 201310511216A CN 103545492 B CN103545492 B CN 103545492B
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- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 21
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000010405 anode material Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010703 silicon Substances 0.000 claims abstract description 18
- 238000000498 ball milling Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 12
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 10
- 238000003763 carbonization Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims abstract description 7
- 229930006000 Sucrose Natural products 0.000 claims abstract description 7
- 239000005720 sucrose Substances 0.000 claims abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 6
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 6
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 5
- 239000012153 distilled water Substances 0.000 claims abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000001507 sample dispersion Methods 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 17
- 229910052786 argon Inorganic materials 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005255 carburizing Methods 0.000 claims description 10
- 239000003595 mist Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 4
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 2
- 238000010792 warming Methods 0.000 claims 2
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000002153 silicon-carbon composite material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of preparation method of multiple composite anode material of lithium ion battery, comprise the following steps: (1) carries out operational processes by the method such as ball milling and carbonization to silicon, silicon monoxide and sucrose, make the preliminary sample of silicon/silicon monoxide/carbon MULTIPLE COMPOSITE structure; (2) by the preliminary sample dispersion that obtains in step (1) in the mixed solution of tetraethoxysilane and ethanol, and add excessive distilled water and make tetraethoxysilane all be hydrolyzed to silicon dioxide, dry; Again the process such as ball milling and carbonization is carried out to the sample and polyvinyl chloride of drying rear gained, obtain silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material.The particle of the composite negative pole material obtained by the present invention is spherical in shape, and even particle size distribution, electronic conductivity are high, and the negative material of this composite construction improves the chemical property of silica-base material.
Description
Technical field
The present invention relates to a kind of preparation method of multiple composite anode material of lithium ion battery.
Background technology
Lithium ion battery is the Novel rechargeable battery of a kind of high-energy-density, long service life, cleanliness without any pollution, has a wide range of applications in fields such as various portable electric appts, electric automobile, large-scale energy storage base stations.In the structure of lithium ion battery, positive and negative pole material is the key substance determining the factors such as lithium ion battery energy storage, useful life, price.But, since lithium ion battery commercialization, positive electrode is constantly being weeded out the old and bring forth the new, and negative material adopts graphite type material always, which prevent the further raising of lithium ion battery energy density, make current lithium ion battery fully can not meet the demand of user.
In the lithium ion battery negative material of current research and development, transition metal negative material is the focus of research and development.Although transition metal negative material has the high feature of Theoretical Mass capacity, but the storage lithium process of this kind of material relates to a kind of conversion reaction mechanism of structural deterioration, make its actual mass specific capacity lower, the reversible specific discharge capacity circulated after 100 weeks as Co3O4 only has 200-400mAh/g, and thus transition metal negative material can not meet the demand of society to high-capacity cathode material very well.By contrast, silica-base material is a kind of negative material of Theoretical Mass specific capacity superelevation, and it adopts alloying reaction process to carry out stored energy, and its Theoretical Mass specific capacity can reach 4200mAh/g.Meanwhile, make silica-base material have potential higher reversible capacity, excellent chemistry and electrochemical stability just because of these two kinds of advantages, therefore, silicon based anode material is a kind of lithium ion battery negative material having very much DEVELOPMENT PROSPECT.
The preparation method of existing silicon based anode material, carbon source (as sucrose, pitch etc.) and silicon is mainly utilized to carry out compound under ball milling, recycling carburizing sintering obtains Si-C composite material, but, this kind of synthesis technique result in obtained Si-C composite material and is unfavorable for the volumetric expansion of buffering silicon in the embedding lithium situation of height because structure is simple, loose while pursuit work simplification, make its cyclical stability of obtained material poor, therefore, this kind of material is not suitable for commercial applications.
Summary of the invention
The present invention, in order to overcome above-mentioned deficiency, provides that a kind of technological controllability is good, reappearance is high, the preparation method of the multiple composite anode material of the lithium ion battery that energy consumption is low.
Technical scheme of the present invention is as follows:
A preparation method for the multiple composite anode material of lithium ion battery, is characterized in that, comprises the following steps:
(1) silicon, silicon monoxide and sucrose are carried out ball milling mixing granulation in molar ratio at 3: 1: 2, first time carbonization treatment is carried out after mixing granulation, volume ratio be 1: 20 hydrogen and argon gas mist in, with the ramp of 2 DEG C per minute to 800 DEG C, 800 DEG C of carburizing sinterings 5 hours, naturally cool to room temperature, form carbon coating layer, take out sample ball milling 10 minutes, obtain the preliminary sample of silicon/silicon monoxide/carbon MULTIPLE COMPOSITE structure;
(2) by the sample dispersion obtained in step (1) to volume ratio be 1: 4 tetraethoxysilane and ethanol mixed solution in, drip excessive distilled water after being uniformly mixed 1 hour and be all hydrolyzed to silicon dioxide to tetraethoxysilane, the sample of gained is dried at 120 DEG C;
The sample of drying rear gained is carried out ball milling with polyvinyl chloride with mass ratio 3: 1 mix, coated granulation is carried out after mixing, volume ratio be 1: 20 hydrogen and argon gas mist in, with the ramp of 2 DEG C per minute to 600 DEG C, 600 DEG C of carburizing sinterings 5 hours;
Carry out second time carbonization treatment again, volume ratio be 1: 2: 20 hydrogen, acetylene and argon gas mist in, with the ramp of 1 DEG C per minute to 900 DEG C, 900 DEG C of carburizing sinterings 2 hours, naturally cool to room temperature, form carbon coating layer, take out sample ball milling 10 minutes, it is 0.5 ~ 2 μm that fragmentation is broken up to particle diameter, obtains silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material.
The invention has the beneficial effects as follows:
(1) the method technological controllability is good, reappearance is high, the particle of the silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material of application this method synthesis is spherical in shape, particle diameter is at 0.5-2 microns, the good dispersion of particle, there is higher reversible capacity and good cycle life, the needs of high-capacity lithium ion cell practical application can be met;
(2) the present invention takes full advantage of and enriches sucrose and polyvinyl chloride resource to develop lithium ion battery negative material, reduces the actual cost of lithium ion battery, be particularly suitable for industrialization large-scale production from the source of manufactured materials.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the charging and discharging curve figure of the silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material of gained in the embodiment of the present invention 1.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1:
Get 0.3mol silica flour, 0.1mol silicon monoxide and 0.1mol sucrose and carry out ball milling mixing; then volume ratio be 1: 20 hydrogen and argon gas mixed gas protected under; with the ramp of 2 DEG C per minute to 800 DEG C; 800 DEG C of carburizing sinterings 5 hours; naturally cool to room temperature; take out sample ball milling 10 minutes, obtain the preliminary sample of silicon/silicon monoxide/carbon MULTIPLE COMPOSITE structure.Sample 10g obtained above is distributed in the mixed solution of 100ml tetraethoxysilane and ethanol, wherein the volume ratio of tetraethoxysilane and ethanol is 1: 4, dripping excessive distilled water after being uniformly mixed 1 hour makes tetraethoxysilane all be hydrolyzed to silicon dioxide, after the sample of gained is dried at 120 DEG C.Then, the sample of gained and polyvinyl chloride are carried out ball milling mixing with mass ratio 3: 1, then volume ratio be 1: 20 hydrogen and argon gas mixed gas protected under, with the ramp of 2 DEG C per minute to 600 DEG C, 600 DEG C of carburizing sinterings 5 hours, then, be the hydrogen of 1: 2: 20 in volume ratio, acetylene and argon gas mixed gas protected under, with the ramp of 1 DEG C per minute to 900 DEG C, 900 DEG C of carburizing sinterings 2 hours, naturally cool to room temperature, take out sample ball milling 10 minutes, fragmentation break up to particle diameter be 0.5 ~ 2 μm, obtain final silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material.As shown in Figure 1, using the product of gained as Electrode, metal lithium sheet is as to electrode, experiment fastening lithium ionic cell is assembled in the glove box being full of argon gas, in 0.01-3.0V potential region, carry out charge and discharge cycles with the multiplying power of 0.1C, can obtain initial charge capacity is 1763.5mAh/g, and discharge capacity is 1407.6mAh/g, its circulate 100 weeks after reversible capacity be 935.7mAh/g, show excellent chemical property.
Above-mentioned is enlightenment according to the present invention, and by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a preparation method for the multiple composite anode material of lithium ion battery, is characterized in that, comprises the following steps:
(1) silicon, silicon monoxide and sucrose are carried out ball milling mixing granulation, first time carbonization treatment is carried out after mixing granulation, in the mist of hydrogen and argon gas, with the ramp of 2 DEG C per minute to 800 DEG C, 800 DEG C of carburizing sinterings 5 hours, naturally cool to room temperature, form carbon coating layer, take out sample ball milling 10 minutes, obtain the preliminary sample of silicon/silicon monoxide/carbon MULTIPLE COMPOSITE structure;
(2) by the sample dispersion that obtains in step (1) in the mixed solution of tetraethoxysilane and ethanol, drip distilled water until tetraethoxysilane is all hydrolyzed to silicon dioxide after being uniformly mixed 1 hour, the sample of gained is dried at 120 DEG C;
The sample of gained after drying is carried out ball milling with polyvinyl chloride mix, after mixing, carry out coated granulation, in the mist of hydrogen and argon gas, with the ramp of 2 DEG C per minute to 600 DEG C, 600 DEG C of carburizing sinterings 5 hours;
Carry out second time carbonization treatment again, in the mist of hydrogen, acetylene and argon gas, with the ramp of 1 DEG C per minute to 900 DEG C, 900 DEG C of carburizing sinterings 2 hours, naturally cool to room temperature, form carbon coating layer, take out sample ball milling 10 minutes, it is 0.5 ~ 2 μm that fragmentation is broken up to particle diameter, obtains silicon/silicon monoxide/carbon/silicon/carbon dioxide multiple composite anode material.
2. the preparation method of the multiple composite anode material of lithium ion battery according to claim 1, is characterized in that, silicon, silicon monoxide and sucrose carry out ball milling mixing granulation in molar ratio at 3: 1: 2 in described step (1); During first time carbonization treatment from be warming up in the process that cooling terminates that to pass into volume ratio be the hydrogen of 1: 20 and the mist of argon gas.
3. the preparation method of the multiple composite anode material of lithium ion battery according to claim 2, is characterized in that, replaces the mist of hydrogen and argon gas with nitrogen.
4. the preparation method of the multiple composite anode material of lithium ion battery according to claim 1, is characterized in that, in the mixed solution of the middle tetraethoxysilane of described step (2) and ethanol, tetraethoxysilane mixes with volume ratio 1: 4 with ethanol; Material after oven dry and polyvinyl chloride are carry out ball milling mix at 3: 1 with mass ratio, and passing into volume ratio in the coated granulation process after mixing is the hydrogen of 1: 20 and the mist of argon gas; During second time carbonization treatment from be warming up to that to pass into volume ratio in the process that cooling terminates be the hydrogen of 1: 2: 20, the mist of acetylene and argon gas.
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| JP6275822B2 (en) * | 2014-03-20 | 2018-02-07 | 株式会社東芝 | Non-aqueous electrolyte battery active material, non-aqueous electrolyte battery electrode, non-aqueous electrolyte secondary battery, battery pack, and method for producing non-aqueous electrolyte battery active material |
| CN104332632B (en) * | 2014-08-22 | 2017-01-11 | 新乡市远东电子科技股份有限公司 | Lithium ion battery silicon-carbon negative electrode material and preparation method thereof |
| CN107623116B (en) * | 2017-09-22 | 2020-07-17 | 苏州锦艺新材料科技有限公司 | Lithium ion battery cathode composite material and preparation method thereof |
| CN109560278B (en) * | 2018-11-30 | 2020-11-20 | 北京科技大学 | Preparation method of lithium ion battery negative electrode material silicon oxide-carbon-graphite |
| CN113506864B (en) * | 2021-04-12 | 2022-07-29 | 南京睿扬光电技术有限公司 | Silicon monoxide composite material for lithium ion battery and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101944596A (en) * | 2010-07-30 | 2011-01-12 | 中国科学院化学研究所 | Preparation method of silicon and carbon composite microspheres and application thereof |
| CN102208635A (en) * | 2011-05-06 | 2011-10-05 | 奇瑞汽车股份有限公司 | Lithium ion battery cathode material and manufacturing method thereof and lithium ion battery |
| CN102509778A (en) * | 2011-10-28 | 2012-06-20 | 奇瑞汽车股份有限公司 | Lithium ion battery cathode material and preparation method thereof |
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| JP5196149B2 (en) * | 2008-02-07 | 2013-05-15 | 信越化学工業株式会社 | Anode material for non-aqueous electrolyte secondary battery, method for producing the same, lithium ion secondary battery and electrochemical capacitor |
| JP2010225494A (en) * | 2009-03-25 | 2010-10-07 | Shin-Etsu Chemical Co Ltd | Anode material for nonaqueous electrolyte secondary battery, its manufacturing method, and lithium ion secondary battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944596A (en) * | 2010-07-30 | 2011-01-12 | 中国科学院化学研究所 | Preparation method of silicon and carbon composite microspheres and application thereof |
| CN102208635A (en) * | 2011-05-06 | 2011-10-05 | 奇瑞汽车股份有限公司 | Lithium ion battery cathode material and manufacturing method thereof and lithium ion battery |
| CN102509778A (en) * | 2011-10-28 | 2012-06-20 | 奇瑞汽车股份有限公司 | Lithium ion battery cathode material and preparation method thereof |
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