KR101154876B1 - 리튬 이차전지용 양극 활물질 - Google Patents
리튬 이차전지용 양극 활물질 Download PDFInfo
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- KR101154876B1 KR101154876B1 KR1020100001022A KR20100001022A KR101154876B1 KR 101154876 B1 KR101154876 B1 KR 101154876B1 KR 1020100001022 A KR1020100001022 A KR 1020100001022A KR 20100001022 A KR20100001022 A KR 20100001022A KR 101154876 B1 KR101154876 B1 KR 101154876B1
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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
- 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
- H01M4/36—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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- 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
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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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
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- Manufacturing & Machinery (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
LixMyO2 (1)
상기 식에서, M는 Ni1-a-bMnaCob (0.05≤a≤0.4, 0.1≤b≤0.4, 0.4≤1-a-b≤0.9)이고, x+y 2로서 0.95≤x≤1.15 이다.
본 발명에 따른 양극 활물질을 포함하는 리튬 이차전지는 레이트 특성과 고온 안전성이 향상되어 우수한 전지 특성을 발휘할 수 있다는 장점이 있다.
Description
도 2는 실험예 1에서의 비교예 1에 따른 SEM 사진이다;
도 3은 실험예 3에서의 비교예 1에 따른 DSC 그래프이다;
도 4는 실험예 3에서의 실시예 1에 따른 DSC 그래프이다;
도 5는 실험예 3에서의 실시예 2에 따른 DSC 그래프이다;
도 6은 실험예 4에서의 비교예 1에 따른 SCC 그래프이다;
도 7은 실험예 4에서의 실시예 1에 따른 SCC 그래프이다;
도 8은 실험예 4에서의 실시예 2에 따른 SCC 그래프이다.
Claims (15)
- 제 1 항에 있어서, 상기 리튬 니켈-망간-코발트 산화물은 미소 입자들의 응집체로 이루어진 응집상(agglomerated) 구조의 입자인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 리튬 니켈-망간-코발트 산화물의 평균 입경(D50)은 8 ㎛ 이하인 것을 특징으로 하는 양극 활물질.
- 제 2 항에 있어서, 상기 리튬 니켈-망간-코발트 산화물은 평균 입경(D90)이 0.01 내지 5 ㎛의 크기를 가진 미소 입자들의 응집체로 이루어진 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 도전성 카본은 천연 흑연, 인조 흑연, 카본블랙, 아세틸렌 블랙, 케첸 블랙, 채널 블랙, 퍼네이스 블랙, 램프 블랙, 서머 블랙 및 탄소 섬유로 이루어지는 군으로부터 선택된 1종 이상인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 도전성 카본은 입경이 0.01 내지 1 ㎛인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 이온전도성 고체 화합물은 리튬포스페이트, 리튬설파이드 및 리튬란타늄타이타네이트로 이루어지는 군으로부터 선택되는 1종 이상인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 도전성 카본: 이온전도성 고체 화합물의 함량비는 90: 10 내지 10: 90(중량%)인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 이온전도성 고체 화합물 및 도전성 카본은 리튬 니켈-망간-코발트 산화물의 표면 전체 또는 일부에 도포되어 있는 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 이온전도성 고체 화합물 및 도전성 카본은 리튬 니켈-망간-코발트 산화물 전체 표면의 20% 내지 80%를 도포하는 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 도포량은 활물질 전체 중량을 기준으로 0.5 내지 10%의 범위인 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 이온전도성 고체 화합물과 도전성 카본은 상호 독립적인 상(phase)로 리튬 니켈-망간-코발트 산화물의 표면에 도포되어 있는 것을 특징으로 하는 양극 활물질.
- 제 1 항에 있어서, 상기 이온전도성 고체 화합물과 도전성 카본은 도전성 카본이 이온전도성 고체 화합물의 내부에 포획되어 있는 복합체 형태로 리튬 니켈-망간-코발트 산화물의 표면에 도포되어 있는 것을 특징으로 하는 양극 활물질.
- 제 1 항 내지 제 13 항 중 어느 하나에 따른 양극 활물질을 포함하는 리튬 이차전지.
- 제 14 항에 있어서, 상기 이차전지는 파워 툴(power tool), 전기차, 전기 이륜차, 또는 전기 골프 카트(electric golf cart)의 전원으로 사용되는 것을 특징으로 하는 리튬 이차전지.
Applications Claiming Priority (2)
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KR1020090000703 | 2009-01-06 | ||
KR20090000703 | 2009-01-06 |
Publications (2)
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KR20100081955A KR20100081955A (ko) | 2010-07-15 |
KR101154876B1 true KR101154876B1 (ko) | 2012-06-18 |
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KR1020100001022A Active KR101154876B1 (ko) | 2009-01-06 | 2010-01-06 | 리튬 이차전지용 양극 활물질 |
Country Status (6)
Country | Link |
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US (1) | US9225019B2 (ko) |
EP (1) | EP2375477B1 (ko) |
JP (2) | JP5922410B2 (ko) |
KR (1) | KR101154876B1 (ko) |
CN (1) | CN102265433B (ko) |
WO (1) | WO2010079965A2 (ko) |
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JP2012514834A (ja) | 2012-06-28 |
US9225019B2 (en) | 2015-12-29 |
WO2010079965A2 (ko) | 2010-07-15 |
EP2375477A2 (en) | 2011-10-12 |
JP5922410B2 (ja) | 2016-05-24 |
JP2015026622A (ja) | 2015-02-05 |
CN102265433A (zh) | 2011-11-30 |
EP2375477A4 (en) | 2013-10-16 |
EP2375477B1 (en) | 2016-12-21 |
US20110086274A1 (en) | 2011-04-14 |
WO2010079965A3 (ko) | 2010-10-14 |
JP6071969B2 (ja) | 2017-02-01 |
CN102265433B (zh) | 2015-05-20 |
KR20100081955A (ko) | 2010-07-15 |
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