KR100938058B1 - 리튬 이차전지용 음극 및 이를 이용한 리튬 이차 전지 - Google Patents
리튬 이차전지용 음극 및 이를 이용한 리튬 이차 전지 Download PDFInfo
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- KR100938058B1 KR100938058B1 KR1020070106595A KR20070106595A KR100938058B1 KR 100938058 B1 KR100938058 B1 KR 100938058B1 KR 1020070106595 A KR1020070106595 A KR 1020070106595A KR 20070106595 A KR20070106595 A KR 20070106595A KR 100938058 B1 KR100938058 B1 KR 100938058B1
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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
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/02—Electrodes composed of, or comprising, active material
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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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/134—Electrodes based on metals, Si or alloys
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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
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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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
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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
- H01M4/58—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
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
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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
- H01M4/621—Binders
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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
- H01M4/621—Binders
- H01M4/622—Binders being polymers
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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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- Chemical & Material Sciences (AREA)
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
용량 유지율 | |
실시예 1 | 78% |
비교예 1 | 70% |
Claims (8)
- 리튬과 화합물을 형성하는 금속 또는 금속 산화물 중에서 선택되는 적어도 하나의 활물질 및 탄소계 활물질로 구성되는 금속-탄소 복합계 활물질 입자, 표면 적어도 일부에 수지 코팅을 가지는 흑연 입자, 상기 활물질 입자들 및 상기 흑연 입자들을 서로 결합 고정되도록 하는 결합재를 구비한 활물질층; 및상기 활물질층이 표면에 적층 형성되는 집전체;를 구비하여 이루어지는 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제1항에 있어서,상기 흑연 입자를 이루는 흑연은 X선 회절법에 의한 d002 층간거리가 0.335 ± 0.01㎚ 이고, 평균 입경이 5 내지 40㎛ 인 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제1항에 있어서,상기 수지는 폴리비닐아세테이트(PVA), 폴리비닐부티랄(PVB), 폴리비닐클로라이드(PVC), 카르복실메틸셀룰로오스(CMC) 중 선택되는 적어도 하나인 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제1항에 있어서,상기 금속-탄소 복합계 활물질은 Sn, Al, Si, SnO, SnO2, SiO2 중에서 선택되는 1 이상의 물질 및 탄소계 물질이 혼련되어 복합화된 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제4항에 있어서,상기 금속-탄소 복합계 활물질의 단독 방전 용량은 단위 그램당 450 내지 1000㎃h 인 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제1항에 있어서,상기 흑연 입자를 이루는 흑연은 인조 흑연 또는 천연 흑연인 것을 특징으로 하는 리튬 이차 전지용 음극.
- 제1항에 있어서,상기 흑연 입자는 상기 활물질층 전체의 10 내지 70 중량%를 차지하는 것을 특징으로 하는 리튬 이차 전지용 음극.
- 음극, 세퍼레이터, 양극이 적층 형성된 전극 조립체, 상기 전극 조립체를 수용하도록 형성된 케이스를 포함하며.상기 전극조립체는 제1 항 내지 제 6항 가운데 하나의 항의 음극을 가지는 것을 특징으로 하는 리튬 이차 전지.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070106595A KR100938058B1 (ko) | 2007-10-23 | 2007-10-23 | 리튬 이차전지용 음극 및 이를 이용한 리튬 이차 전지 |
US12/255,139 US8263262B2 (en) | 2007-10-23 | 2008-10-21 | Anode for a lithium rechargeable battery and lithium rechargeable battery using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020070106595A KR100938058B1 (ko) | 2007-10-23 | 2007-10-23 | 리튬 이차전지용 음극 및 이를 이용한 리튬 이차 전지 |
Publications (2)
Publication Number | Publication Date |
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KR20090041074A KR20090041074A (ko) | 2009-04-28 |
KR100938058B1 true KR100938058B1 (ko) | 2010-01-21 |
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KR1020070106595A KR100938058B1 (ko) | 2007-10-23 | 2007-10-23 | 리튬 이차전지용 음극 및 이를 이용한 리튬 이차 전지 |
Country Status (2)
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US (1) | US8263262B2 (ko) |
KR (1) | KR100938058B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10529983B2 (en) | 2016-07-04 | 2020-01-07 | Samsung Electronics Co., Ltd. | Composite electrode active material, lithium battery including the same, and method of preparing the composite electrode active material |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102623702B (zh) * | 2012-03-19 | 2014-07-23 | 宁德新能源科技有限公司 | 一种锂离子电池及其负极极片及其制备方法 |
CN105074975B (zh) * | 2013-02-26 | 2018-04-03 | 三洋电机株式会社 | 非水电解质二次电池用负极以及非水电解质二次电池 |
US20150372290A1 (en) * | 2013-05-30 | 2015-12-24 | Applejack 199 L,P., A California Limited Partnership | Hybrid silicon-metal anode using microparticles for lithium-ion batteries |
CN103633303B (zh) * | 2013-11-21 | 2016-01-20 | 广东烛光新能源科技有限公司 | 包覆改性的锂离子电池阳极材料 |
FR3044830B1 (fr) * | 2015-12-08 | 2020-06-12 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Cellule electrochimique pour batterie au lithium comprenant un electrolyte specifique |
US10818976B2 (en) | 2016-06-29 | 2020-10-27 | International Business Machines Corporation | Rechargeable battery |
JP6981338B2 (ja) * | 2018-03-28 | 2021-12-15 | トヨタ自動車株式会社 | 負極材料、非水電解質二次電池およびそれらの製造方法 |
CN109638260B (zh) * | 2018-12-19 | 2022-10-25 | 中国科学院山西煤炭化学研究所 | 一种炭包覆石墨负极材料的制备方法 |
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- 2007-10-23 KR KR1020070106595A patent/KR100938058B1/ko active IP Right Grant
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US10529983B2 (en) | 2016-07-04 | 2020-01-07 | Samsung Electronics Co., Ltd. | Composite electrode active material, lithium battery including the same, and method of preparing the composite electrode active material |
Also Published As
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US8263262B2 (en) | 2012-09-11 |
KR20090041074A (ko) | 2009-04-28 |
US20090104535A1 (en) | 2009-04-23 |
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