KR20070112717A - 과충전시의 안전성 향상을 위한 전극을 포함하고 있는이차전지 - Google Patents
과충전시의 안전성 향상을 위한 전극을 포함하고 있는이차전지 Download PDFInfo
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- KR20070112717A KR20070112717A KR1020070048927A KR20070048927A KR20070112717A KR 20070112717 A KR20070112717 A KR 20070112717A KR 1020070048927 A KR1020070048927 A KR 1020070048927A KR 20070048927 A KR20070048927 A KR 20070048927A KR 20070112717 A KR20070112717 A KR 20070112717A
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- South Korea
- Prior art keywords
- electrode
- secondary battery
- battery
- overcharge
- electrode assembly
- Prior art date
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Images
Classifications
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
-
- 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
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into batteries
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
Claims (10)
- 충방전이 가능한 구조의 전극조립체를 포함하고 있는 이차전지에서, 과충전시 전기화학 반응이 일어나는 물질('과충전 반응물질')로 구성된 별도의 전극('안전전극')이 상기 전극조립체에 포함되어 있는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 전극조립체는 양극/분리막/음극 구조의 전극조립체로서 젤리-롤형 또는 스택형 구조로 적층되어 있는 것을 특징으로 하는 이차전지.
- 제 2 항에 있어서, 안전전극은 상기 젤리-롤형 전극조립체에서 1 회 권회층의 일부 또는 전부이거나, 상기 스택형 전극조립체에서 하나 또는 두 개의 전극층을 이루고 있는 것을 특징으로 하는 이차전지.
- 제 2 항에 있어서, 상기 전극조립체는 스택형 전극조립체이고, 상기 안전층은 그것의 최외각 전극층을 구성하는 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 안전전극은 금속시트의 집전체 일면 또는 양면에 과충전 반응물질이 도포되어 있는 구조, 또는 과충전 반응물질로 이루어진 전극 형태의 구조물에 전극단자로서의 금속편이 접속되어 있는 구조인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 전기화학 반응은 분해반응, 중합반응, 축합반응 또는 상변환반응인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 과충전 반응물질은 과충전 전압에서 분해되는 폴리우레탄계 물질인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 과충전 전압은 정격전압이 4.0 내지 4.5 V인 이차전지에서 5.0 V 이상인 것을 특징으로 이차전지.
- 제 1 항에 있어서, 상기 전지는 리튬 이차전지인 것을 특징으로 하는 이차전지.
- 제 1 항에 있어서, 상기 전지는 고출력 대용량의 이차전지 또는 전지팩의 단위전지인 것을 특징으로 하는 이차전지.
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KR1020060045439 | 2006-05-22 | ||
KR20060045439 | 2006-05-22 |
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KR20070112717A true KR20070112717A (ko) | 2007-11-27 |
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KR1020070048927A KR100879892B1 (ko) | 2006-05-22 | 2007-05-19 | 과충전시의 안전성 향상을 위한 전극을 포함하고 있는이차전지 |
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US (1) | US8021788B2 (ko) |
KR (1) | KR100879892B1 (ko) |
CN (1) | CN101490891B (ko) |
WO (1) | WO2007136206A1 (ko) |
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WO2017213332A2 (ko) | 2016-06-09 | 2017-12-14 | 주식회사 엘지화학 | 2차 전지 전극의 두께 변화 측정 장치 및 그를 장착한 2차 전지 |
KR20190008638A (ko) * | 2017-07-17 | 2019-01-25 | 주식회사 엘지화학 | 이차전지 |
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KR101514393B1 (ko) * | 2009-01-06 | 2015-04-23 | 삼성전자주식회사 | 일체화된 전기 흡착 탈이온화용 전극-집전체 시트, 및 이를구비하는 전기 흡착 탈이온 장치와 전기이중층 커패시터 |
KR101145716B1 (ko) | 2009-12-23 | 2012-05-14 | 주식회사 엘지화학 | 상변환 물질을 이용한 과충전 보호소자와 이를 적용한 이차전지 |
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- 2007-05-19 CN CN2007800269035A patent/CN101490891B/zh active Active
- 2007-05-19 KR KR1020070048927A patent/KR100879892B1/ko active IP Right Grant
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KR20170107433A (ko) * | 2014-11-25 | 2017-09-25 | 아메리칸 리튬 에너지 코포레이션 | 내부 전류 제한기 및 차단기를 갖는 재충전가능 배터리 |
WO2017213332A2 (ko) | 2016-06-09 | 2017-12-14 | 주식회사 엘지화학 | 2차 전지 전극의 두께 변화 측정 장치 및 그를 장착한 2차 전지 |
US10777853B2 (en) | 2016-06-09 | 2020-09-15 | Lg Chem, Ltd. | Apparatus for measuring variation in thickness of electrode of secondary battery and secondary battery with the same mounted therein |
KR20190008638A (ko) * | 2017-07-17 | 2019-01-25 | 주식회사 엘지화학 | 이차전지 |
Also Published As
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WO2007136206A1 (en) | 2007-11-29 |
US8021788B2 (en) | 2011-09-20 |
KR100879892B1 (ko) | 2009-01-21 |
US20100021821A1 (en) | 2010-01-28 |
CN101490891A (zh) | 2009-07-22 |
CN101490891B (zh) | 2011-11-23 |
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