KR100790835B1 - 고성능 리튬 이차전지용 재료의 제조방법 - Google Patents
고성능 리튬 이차전지용 재료의 제조방법 Download PDFInfo
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- KR100790835B1 KR100790835B1 KR1020070044441A KR20070044441A KR100790835B1 KR 100790835 B1 KR100790835 B1 KR 100790835B1 KR 1020070044441 A KR1020070044441 A KR 1020070044441A KR 20070044441 A KR20070044441 A KR 20070044441A KR 100790835 B1 KR100790835 B1 KR 100790835B1
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- transition metal
- lithium
- mixed transition
- metal oxide
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- C—CHEMISTRY; METALLURGY
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/40—Nickelates
- C01G53/42—Nickelates containing alkali metals, e.g. LiNiO2
- C01G53/44—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese
- C01G53/50—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [MnO2]n-, e.g. Li(NixMn1-x)O2, Li(MyNixMn1-x-y)O2
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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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
- H01M4/13—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
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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
- H01M4/48—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
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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
- H01M4/48—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
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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
- H01M4/48—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
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/11—Powder tap density
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- 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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- 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
- C01P2006/80—Compositional purity
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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
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- 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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- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims (15)
- 리튬 혼합 전이금속 산화물을 제조하는 방법으로서, 산소 농도 10 내지 50%의 산소 결핍 분위기에서 Li2CO3과 혼합 전이금속 전구체를 고상 반응시켜 하기 화학식 1로 표시되는 조성을 가진 분말상 리튬 혼합 전이금속 산화물을 제조하는 것을 특징으로 하는 방법:LixMyO2 (1)상기 식에서,M = M'1 - kAk, 여기서,M' = Ni1 -a-b(Ni1 /2Mn1 /2)aCob로서 0.65≤a+b≤0.85 및 0.1≤b≤0.4이고;A 는 도펀트이며;0≤k<0.05;x+y≒2으로서 0.95≤x≤1.05이다.
- 제 1 항에 있어서, 상기 산소 농도는 10 내지 30%인 것을 특징으로 하는 방법.
- 제 2 항에 있어서, 상기 분위기는 공기 분위기인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 혼합 전이금속 전구체는 M(OH)2 및 MOOH (여기서, M은 화학식 1에서의 정의와 동일함)로 이루어진 군에서 선택되는 1 종 또는 2 종 이상인 것을 특징으로 하는 양극 활물질.
- 제 4 항에 있어서, 상기 혼합 전이금속 전구체는 MOOH이고, 암모니아가 없는 과정('비암모니아 공정')에 의해 제조되는 것을 특징으로 하는 리튬 혼합 전이금속 산화물.
- 제 1 항에 있어서, 상기 혼합 전이금속 전구체는 탭 밀도(tap density)가 1.1 내지 1.6인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, Li2CO3과 혼합 전이금속 전구체의 혼합 비율은 중량을 기준으로 0.95 ~ 1.04 : 1 (Li2CO3 : 혼합 전이금속 전구체)인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 고상 반응은 600 ~ 1100℃에서 3 ~ 20 시간 동안 소결하는 과정을 포함하는 것을 특징으로 하는 방법.
- 제 8 항에 있어서, 상기 소결 과정 동안 2 m3/kg LiMO2를 초과하는 양의 공기가 상기 공기를 예열하기 위한 열 교환기가 구비된 반응기 안으로 공급되는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 상기 리튬 혼합 전이금속 산화물은 최종 리튬 혼합 전이금속 산화물 1 kg 당 적어도 2 m3(실온에서의 체적)의 공기가 반응기 내부 또는 외부로 펌핑되는 조건에서 대규모 공정에 의해 제조되는 것을 특징으로 하는 방법.
- 삭제
- 제 10 항에 있어서, 상기 최종 리튬 혼합 전이금속 산화물 1 kg 당 적어도 10 m3의 공기가 반응기 내부 또는 외부로 펌핑되는 것을 특징으로 하는 방법.
- 제 9 항에 있어서, 배출 공기를 냉각하면서, 유입 공기가 반응기 내로 들어가기 전에 상기 유입 공기를 예열하는데, 열 교환기를 사용하는 것을 특징으로 하는 방법.
- 삭제
- 삭제
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KR1020070044441A KR100790835B1 (ko) | 2006-05-10 | 2007-05-08 | 고성능 리튬 이차전지용 재료의 제조방법 |
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KR2006001739 | 2006-05-10 | ||
WOPCT/KR2006/001739 | 2006-05-10 | ||
KR1020070044441A KR100790835B1 (ko) | 2006-05-10 | 2007-05-08 | 고성능 리튬 이차전지용 재료의 제조방법 |
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KR20070109863A KR20070109863A (ko) | 2007-11-15 |
KR100790835B1 true KR100790835B1 (ko) | 2008-01-03 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101286762B1 (ko) * | 2009-12-03 | 2013-07-16 | 주식회사 엘앤에프신소재 | 리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 이용한 리튬 이차 전지 |
KR101435776B1 (ko) * | 2010-03-25 | 2014-08-29 | 주식회사 엘지화학 | 이차전지용 양극 활물질의 제조방법 |
KR102091214B1 (ko) | 2016-09-12 | 2020-03-19 | 주식회사 엘지화학 | 고전압용 리튬 코발트 산화물을 포함하는 리튬 이차전지용 양극 활물질 및 이를 제조하는 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006040715A (ja) | 2004-07-27 | 2006-02-09 | Nippon Chem Ind Co Ltd | リチウムマンガンニッケル系複合酸化物、その製造方法及びそれを用いたリチウム二次電池 |
KR20060031787A (ko) * | 2003-08-21 | 2006-04-13 | 세이미 케미칼 가부시끼가이샤 | 리튬 이차 전지용 양극 활성 물질 분말 |
US20060083989A1 (en) | 2003-04-17 | 2006-04-20 | Seimi Chemical Co., Ltd. | Lithium-nickel-cobalt-maganese containing composite oxide, material for positive electrode active material for lithium secondary battery, and methods for producing these |
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- 2007-05-08 KR KR1020070044441A patent/KR100790835B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060083989A1 (en) | 2003-04-17 | 2006-04-20 | Seimi Chemical Co., Ltd. | Lithium-nickel-cobalt-maganese containing composite oxide, material for positive electrode active material for lithium secondary battery, and methods for producing these |
KR20060031787A (ko) * | 2003-08-21 | 2006-04-13 | 세이미 케미칼 가부시끼가이샤 | 리튬 이차 전지용 양극 활성 물질 분말 |
JP2006040715A (ja) | 2004-07-27 | 2006-02-09 | Nippon Chem Ind Co Ltd | リチウムマンガンニッケル系複合酸化物、その製造方法及びそれを用いたリチウム二次電池 |
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