CN106058211A - 一种天然石墨复合材料、其制备方法和锂离子电池 - Google Patents
一种天然石墨复合材料、其制备方法和锂离子电池 Download PDFInfo
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- CN106058211A CN106058211A CN201610628368.1A CN201610628368A CN106058211A CN 106058211 A CN106058211 A CN 106058211A CN 201610628368 A CN201610628368 A CN 201610628368A CN 106058211 A CN106058211 A CN 106058211A
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- Prior art keywords
- native graphite
- graphite composite
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- pulverizing
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Links
- 239000002131 composite material Substances 0.000 title claims abstract description 97
- 229910021382 natural graphite Inorganic materials 0.000 title claims abstract description 50
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 126
- 230000008569 process Effects 0.000 claims abstract description 107
- 229910003481 amorphous carbon Inorganic materials 0.000 claims abstract description 30
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- 230000000996 additive effect Effects 0.000 claims abstract description 18
- 238000005056 compaction Methods 0.000 claims abstract description 9
- 239000007767 bonding agent Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 144
- 229910002804 graphite Inorganic materials 0.000 claims description 136
- 239000010439 graphite Substances 0.000 claims description 136
- 239000000843 powder Substances 0.000 claims description 41
- 238000002156 mixing Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 33
- 238000010298 pulverizing process Methods 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 22
- 239000007791 liquid phase Substances 0.000 claims description 20
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052744 lithium Inorganic materials 0.000 claims description 18
- 239000011230 binding agent Substances 0.000 claims description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 239000011805 ball Substances 0.000 claims description 15
- 239000011294 coal tar pitch Substances 0.000 claims description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical group C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 10
- 239000010426 asphalt Substances 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 230000004927 fusion Effects 0.000 claims description 9
- 238000004898 kneading Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
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- 229910001868 water Inorganic materials 0.000 claims description 8
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 6
- 239000011149 active material Substances 0.000 claims description 6
- 238000005213 imbibition Methods 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 6
- 239000011806 microball Substances 0.000 claims description 6
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 5
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
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- 150000007524 organic acids Chemical group 0.000 claims description 5
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
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- 238000012216 screening Methods 0.000 claims description 4
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
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- 239000011248 coating agent Substances 0.000 abstract description 6
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- 238000007669 thermal treatment Methods 0.000 abstract 2
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- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 238000010792 warming Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000005087 graphitization Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 2
- 229910001290 LiPF6 Inorganic materials 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- GCAIEATUVJFSMC-UHFFFAOYSA-N benzene-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1C(O)=O GCAIEATUVJFSMC-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004438 BET method Methods 0.000 description 1
- 239000006245 Carbon black Super-P Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910003005 LiNiO2 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- GTDPSWPPOUPBNX-UHFFFAOYSA-N ac1mqpva Chemical compound CC12C(=O)OC(=O)C1(C)C1(C)C2(C)C(=O)OC1=O GTDPSWPPOUPBNX-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
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- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- 238000002604 ultrasonography Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
| 循环周数 | 脱锂比容量(mAh/g) | 嵌锂比容量(mAh/g) | 效率(%) |
| 1 | 363.5 | 394.3 | 92.2 |
| 2 | 363.6 | 368.4 | 98.7 |
| 3 | 363.6 | 366.5 | 99.2 |
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628368.1A CN106058211B (zh) | 2016-08-03 | 2016-08-03 | 一种天然石墨复合材料、其制备方法和锂离子电池 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610628368.1A CN106058211B (zh) | 2016-08-03 | 2016-08-03 | 一种天然石墨复合材料、其制备方法和锂离子电池 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106058211A true CN106058211A (zh) | 2016-10-26 |
| CN106058211B CN106058211B (zh) | 2019-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610628368.1A Active CN106058211B (zh) | 2016-08-03 | 2016-08-03 | 一种天然石墨复合材料、其制备方法和锂离子电池 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058211B (zh) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952672A (zh) * | 2016-11-14 | 2019-06-28 | 日立化成株式会社 | 锂离子二次电池用负极材、锂离子二次电池用负极和锂离子二次电池 |
| WO2020107927A1 (zh) * | 2018-11-29 | 2020-06-04 | 贝特瑞新材料集团股份有限公司 | 天然石墨及由其制备得到的改性天然石墨材料、制备方法和应用 |
| CN111463416A (zh) * | 2020-04-14 | 2020-07-28 | 广东东岛新能源股份有限公司 | 一种低成本低膨胀率长循环天然石墨基复合材料及其制备方法与应用 |
| CN111960413A (zh) * | 2020-08-17 | 2020-11-20 | 内蒙古恒胜新能源科技有限公司 | 一种天然石墨负极材料的改性方法 |
| CN112201776A (zh) * | 2019-07-08 | 2021-01-08 | 宁波杉杉新材料科技有限公司 | 一种天然石墨负极材料及其制备方法、锂离子电池 |
| CN113422023A (zh) * | 2021-06-25 | 2021-09-21 | 洛阳月星新能源科技有限公司 | 一种动力电池用改性天然石墨负极材料及其制备方法 |
| CN113903896A (zh) * | 2021-09-28 | 2022-01-07 | 上海普澜特夫精细化工有限公司 | 一种二次颗粒硬碳复合材料及其制备方法和应用 |
| RU2764440C1 (ru) * | 2021-03-02 | 2022-01-17 | Акционерное Общество "Наука И Инновации" | Способ получения сферического графита на основе природного графита |
| CN114203978A (zh) * | 2020-09-17 | 2022-03-18 | 湖南中科星城石墨有限公司 | 一种高容量石墨负极材料及其制备方法和应用 |
| CN114242971A (zh) * | 2017-12-13 | 2022-03-25 | 贝特瑞新材料集团股份有限公司 | 改性复合材料及其制备方法、锂离子电池 |
| CN114765256A (zh) * | 2021-01-13 | 2022-07-19 | 泰星能源解决方案有限公司 | 负极活性物质、锂离子电池和负极活性物质的制造方法 |
| CN115667139A (zh) * | 2020-06-03 | 2023-01-31 | 郑泳云 | 制造粗球状石墨的新方法 |
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