KR20170117063A - 비수전해질 이차 전지용 정극 활물질, 비수전해질 이차 전지 - Google Patents
비수전해질 이차 전지용 정극 활물질, 비수전해질 이차 전지 Download PDFInfo
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- KR20170117063A KR20170117063A KR1020177022225A KR20177022225A KR20170117063A KR 20170117063 A KR20170117063 A KR 20170117063A KR 1020177022225 A KR1020177022225 A KR 1020177022225A KR 20177022225 A KR20177022225 A KR 20177022225A KR 20170117063 A KR20170117063 A KR 20170117063A
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- active material
- electrode active
- positive electrode
- secondary battery
- nonaqueous electrolyte
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- 239000007774 positive electrode material Substances 0.000 title claims abstract description 50
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000002245 particle Substances 0.000 claims abstract description 30
- 239000011163 secondary particle Substances 0.000 claims abstract description 25
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 16
- 239000011164 primary particle Substances 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 8
- -1 lithium transition metal Chemical class 0.000 claims abstract description 6
- 238000005054 agglomeration Methods 0.000 claims abstract description 3
- 230000002776 aggregation Effects 0.000 claims abstract description 3
- 238000000137 annealing Methods 0.000 claims description 14
- 239000011572 manganese Substances 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 239000007773 negative electrode material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 19
- 230000003252 repetitive effect Effects 0.000 abstract description 11
- 239000000843 powder Substances 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 18
- 150000003624 transition metals Chemical class 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 12
- 239000011149 active material Substances 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 10
- 238000009826 distribution Methods 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000005430 electron energy loss spectroscopy Methods 0.000 description 6
- 238000007086 side reaction Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 241000252073 Anguilliformes Species 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910001417 caesium ion Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 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
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 1
- 229940044175 cobalt sulfate Drugs 0.000 description 1
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000002524 electron diffraction data Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 description 1
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 1
- 229940053662 nickel sulfate Drugs 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/40—Complex oxides containing cobalt and at least one other metal element
- C01G51/42—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2
- C01G51/44—Complex oxides containing cobalt and at least one other metal element containing alkali metals, e.g. LiCoO2 containing manganese
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Complex oxides containing manganese and at least one other metal element
- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/1228—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO2)-, e.g. LiMnO2 or Li(MxMn1-x)O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Complex oxides containing nickel and at least one other metal element
- C01G53/42—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2
- C01G53/44—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/80—Compounds containing nickel, with or without oxygen or hydrogen, and containing one or more other elements
- C01G53/82—Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements
-
- 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
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
-
- 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
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/028—Positive electrodes
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
2: 이차 입자
3: 조성비를 측정하는 기준이 되는 직선
Claims (5)
- 조성이 Lia(NixCoyMn1-x-y)O2(1.0≤a≤1.15, 0<x<1, 0<y<1)로 표시되는 리튬 전이 금속 층상 산화물을 포함하는 비수전해질 이차 전지용 정극 활물질이며, 상기 정극 활물질은 일차 입자의 응집에 의해 이차 입자가 형성되어 있고, 해당 이차 입자의 단면의 조성비 Li/Me(Me=Ni+Co+Mn)의 변동 계수가 25% 이하인 것을 특징으로 하는 비수전해질 이차 전지용 정극 활물질.
- 제1항에 있어서, 평균 이차 입자 직경이 3.0 내지 16㎛인, 비수전해질 이차 전지용 정극 활물질.
- 제1항 또는 제2항에 있어서, 일차 입자(결정자 크기)가 100 내지 600nm인, 비수전해질 이차 전지용 정극 활물질.
- 제1항 내지 제3항 중 어느 한 항에 기재된 비수전해질 이차 전지용 정극 활물질을 사용한, 비수전해질 이차 전지.
- 원료가 되는, 구상(球狀)의 니켈ㆍ코발트ㆍ망간계 복합 화합물 입자를 얻고, 이 복합 화합물 입자와 수산화리튬을, 몰비로 Li/(Ni+Co+Mn)을 1.00 내지 1.20의 범위로 한 혼합물을 얻고, 이 혼합물을 산소 함유 분위기에서 600 내지 900℃의 온도에서 소성하고, 수세 처리하지 않고, 500 내지 750℃에서 소성 온도보다 저온에서 어닐링 처리하는 것을 포함하는, 제1항 내지 제3항 중 어느 한 항에 기재된 비수전해질 이차 전지용 정극 활물질의 제조 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015029055 | 2015-02-17 | ||
JPJP-P-2015-029055 | 2015-02-17 | ||
PCT/JP2016/054278 WO2016133042A1 (ja) | 2015-02-17 | 2016-02-15 | 非水電解質二次電池用正極活物質、非水電解質二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170117063A true KR20170117063A (ko) | 2017-10-20 |
KR102636863B1 KR102636863B1 (ko) | 2024-02-19 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020177022225A Active KR102636863B1 (ko) | 2015-02-17 | 2016-02-15 | 비수전해질 이차 전지용 정극 활물질, 비수전해질 이차 전지 |
Country Status (8)
Country | Link |
---|---|
US (2) | US20180026265A1 (ko) |
EP (1) | EP3261158A4 (ko) |
JP (1) | JP6874676B2 (ko) |
KR (1) | KR102636863B1 (ko) |
CN (1) | CN107408689B (ko) |
CA (1) | CA2976022C (ko) |
TW (1) | TW201705591A (ko) |
WO (1) | WO2016133042A1 (ko) |
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WO2020175925A1 (ko) * | 2019-02-28 | 2020-09-03 | 주식회사 엘지화학 | 이차전지용 양극 활물질 전구체, 양극 활물질, 그 제조방법 및 이를 포함하는 리튬 이차전지 |
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DE102013111356B4 (de) | 2013-10-15 | 2019-04-18 | Lemken Gmbh & Co. Kg | Säherz für Einzelkornsämaschine |
CN108886144B (zh) * | 2016-03-30 | 2022-03-04 | 巴斯夫户田电池材料有限公司 | 用于非水电解质二次电池的正极活性物质及其制造方法、以及使用其的非水电解质二次电池 |
JP2017188428A (ja) | 2016-03-30 | 2017-10-12 | Basf戸田バッテリーマテリアルズ合同会社 | 非水電解質二次電池用の正極活物質及びその製造方法、並びにそれを用いた非水電解質二次電池 |
KR102698846B1 (ko) * | 2017-11-22 | 2024-08-26 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 양극활물질 및 그 제조방법 |
KR102357941B1 (ko) * | 2018-01-29 | 2022-02-03 | 삼성에스디아이 주식회사 | 리튬이차전지용 양극 활물질, 이를 포함하는 양극, 및 이를 포함하는 리튬이차전지 |
KR102569296B1 (ko) * | 2019-01-10 | 2023-08-22 | 주식회사 엘지화학 | 리튬 이차전지용 양극 활물질의 제조 방법, 상기 제조방법에 의해 제조된 양극 활물질 |
CN113474297A (zh) * | 2019-02-26 | 2021-10-01 | 住友金属矿山株式会社 | 锂离子二次电池用正极活性物质、锂离子二次电池用正极活性物质的制造方法、锂离子二次电池 |
US20220407078A1 (en) * | 2019-08-20 | 2022-12-22 | Carnegie Mellon University | Lithium metal batteries having anode-free current collectors |
CN114914429B (zh) * | 2021-01-11 | 2024-08-16 | 宁德新能源科技有限公司 | 正极材料、电化学装置和电子设备 |
JP2024102945A (ja) | 2023-01-20 | 2024-08-01 | プライムプラネットエナジー&ソリューションズ株式会社 | 正極用ncm系活物質、正極および電池 |
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Also Published As
Publication number | Publication date |
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JPWO2016133042A1 (ja) | 2017-11-24 |
CA2976022C (en) | 2023-08-15 |
EP3261158A1 (en) | 2017-12-27 |
WO2016133042A1 (ja) | 2016-08-25 |
CN107408689B (zh) | 2022-05-17 |
US11492266B2 (en) | 2022-11-08 |
CA2976022A1 (en) | 2016-08-25 |
EP3261158A4 (en) | 2018-08-08 |
CN107408689A (zh) | 2017-11-28 |
TW201705591A (zh) | 2017-02-01 |
US20180026265A1 (en) | 2018-01-25 |
JP6874676B2 (ja) | 2021-05-19 |
US20200058934A1 (en) | 2020-02-20 |
KR102636863B1 (ko) | 2024-02-19 |
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