KR100326456B1 - 리튬 이차 전지용 양극 활물질 및 그 제조 방법 - Google Patents
리튬 이차 전지용 양극 활물질 및 그 제조 방법 Download PDFInfo
- Publication number
- KR100326456B1 KR100326456B1 KR1019990011047A KR19990011047A KR100326456B1 KR 100326456 B1 KR100326456 B1 KR 100326456B1 KR 1019990011047 A KR1019990011047 A KR 1019990011047A KR 19990011047 A KR19990011047 A KR 19990011047A KR 100326456 B1 KR100326456 B1 KR 100326456B1
- Authority
- KR
- South Korea
- Prior art keywords
- active material
- lithium secondary
- salt
- mixture
- secondary battery
- Prior art date
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000007774 positive electrode material Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 230000004907 flux Effects 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 6
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 6
- 150000001868 cobalt Chemical class 0.000 claims abstract description 5
- 150000002815 nickel Chemical class 0.000 claims abstract description 5
- 150000000703 Cerium Chemical class 0.000 claims abstract description 4
- 150000002603 lanthanum Chemical class 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 3
- 239000006182 cathode active material Substances 0.000 claims description 10
- 229910052746 lanthanum Inorganic materials 0.000 claims description 9
- 229910052684 Cerium Inorganic materials 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 159000000003 magnesium salts Chemical class 0.000 claims description 3
- 159000000008 strontium salts Chemical class 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 150000008040 ionic compounds Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 229910052759 nickel Inorganic materials 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 2
- 239000011149 active material Substances 0.000 description 25
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229910020599 Co 3 O 4 Inorganic materials 0.000 description 4
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 229910013716 LiNi Inorganic materials 0.000 description 3
- 229910013870 LiPF 6 Inorganic materials 0.000 description 3
- 229910021314 NaFeO 2 Inorganic materials 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 239000002003 electrode paste Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- -1 ion compounds Chemical class 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002388 carbon-based active material Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000007773 negative electrode material 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
- H01M4/48—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
-
- 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
-
- 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
-
- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims (7)
- 화학식 1의 리튬 이차 전지용 양극 활물질.[화학식 1]LiaNi1-(x+y+z)CoxMyNzO2+b식에서, 0.96≤a≤1.05, 0.10≤x+y≤0.15, 0〈y≤0.5, 0≤z≤0.02, -0.3≤b≤0.1이고, M은 La 및 Ce 중에서 적어도 하나이고, N은 Mg 또는 Sr이다.
- (정정) 화학식 2의 리튬 이차 전지용 양극 활물질.[화학식 2]Li1+a-bNbNi1-(x+y)CoxMyO2+z식에서, 0.96≤a≤1.05, 0≤b≤0.02, 0.10≤x+y≤0.15, 0〈y≤0.5, -0.3≤z≤0.1이고, M은 La 및 Ce 중에서 적어도 하나이고, N은 Mg이다.
- 제 1항 또는 제 2항에 있어서, 상기 양극 활물질은 단결정 또는 단결정들이 집합된 형태를 나타내며, 탭 밀도가 2.0-3.0g/㏄인 리튬 이차 전지용 양극 활물질.
- 란타늄염 및 세륨염으로 이루어진 군에서 선택된 적어도 하나의 염, 리튬염, 코발트염, 니켈염 및 융제(flux)를 혼합하는 공정과;상기 혼합물을 섭씨 400-600도에서 일차 열처리하는 공정과;상기 혼합물을 섭씨 700-900도에서 이차 열처리하는 공정; 및상기 이차 열처리된 혼합물을 세정하는 공정을 포함하는 리튬 이차 전지용 양극 활물질.
- 제 4항에 있어서, 상기 융제는 알칼리계 이온 화합물인 리튬 이차 전지용 양극 활물질.
- (정정) 제 5항에 있어서, 상기 알칼리계 이온 화합물은 Na2S인 리튬 이차 전지용 양극 활물질.
- 제 4항에 있어서, 상기 혼합 공정에서 마그네슘염, 스트론튬염 및 이들의 혼합물로 이루어진 군에서 선택되는 물질을 추가적으로 혼합하는 것을 특징으로 하는 리튬 이차 전지용 양극 활물질.
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KR1019990011047A KR100326456B1 (ko) | 1999-03-30 | 1999-03-30 | 리튬 이차 전지용 양극 활물질 및 그 제조 방법 |
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Application Number | Priority Date | Filing Date | Title |
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KR1019990011047A KR100326456B1 (ko) | 1999-03-30 | 1999-03-30 | 리튬 이차 전지용 양극 활물질 및 그 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20000061759A KR20000061759A (ko) | 2000-10-25 |
KR100326456B1 true KR100326456B1 (ko) | 2002-02-28 |
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KR1019990011047A KR100326456B1 (ko) | 1999-03-30 | 1999-03-30 | 리튬 이차 전지용 양극 활물질 및 그 제조 방법 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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TW565961B (en) * | 2001-11-30 | 2003-12-11 | Sanyo Electric Co | Nonaqueous electrolyte secondary battery and its manufacturing method |
CN103904315A (zh) * | 2012-12-24 | 2014-07-02 | 天津工业大学 | 一种含镍锰的固溶体材料及其制备方法 |
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1999
- 1999-03-30 KR KR1019990011047A patent/KR100326456B1/ko not_active IP Right Cessation
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