WO2011019187A3 - 리튬 이차전지 - Google Patents

리튬 이차전지 Download PDF

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Publication number
WO2011019187A3
WO2011019187A3 PCT/KR2010/005235 KR2010005235W WO2011019187A3 WO 2011019187 A3 WO2011019187 A3 WO 2011019187A3 KR 2010005235 W KR2010005235 W KR 2010005235W WO 2011019187 A3 WO2011019187 A3 WO 2011019187A3
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WIPO (PCT)
Prior art keywords
aqueous solvent
secondary battery
lithium secondary
particles
inorganic substances
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PCT/KR2010/005235
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English (en)
French (fr)
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WO2011019187A2 (ko
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유성훈
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주식회사 엘지화학
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Priority to CN2010800040422A priority Critical patent/CN102272999A/zh
Priority to JP2011538575A priority patent/JP5719306B2/ja
Priority to EP10808336.1A priority patent/EP2466678B1/en
Priority to US12/944,930 priority patent/US9070948B2/en
Publication of WO2011019187A2 publication Critical patent/WO2011019187A2/ko
Publication of WO2011019187A3 publication Critical patent/WO2011019187A3/ko
Priority to US14/716,266 priority patent/US10439188B2/en

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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
    • 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
    • H—ELECTRICITY
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    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
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    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
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    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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    • 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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  • Chemical & Material Sciences (AREA)
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  • Secondary Cells (AREA)
  • Cell Separators (AREA)

Abstract

본 발명은 양극, 음극, 상기 양극과 음극 사이에 개재된 세퍼레이터 및 비수용매에 리튬염이 용해된 비수전해액을 포함하는 리튬 이차전지에 관한 것으로서, 상기 세퍼레이터는, 기공들을 갖는 다공성 기재; 및 상기 다공성 기재의 적어도 일면 위에 위치하고, 무기물 입자들과 바인더 고분자의 혼합물을 포함하며, 상기 무기물 입자들이 상기 바인더 고분자에 의해 서로 연결 및 고정되어 있고 상기 무기물 입자들 간의 빈공간(interstitial volume)으로 인해 형성된 기공들을 갖는 다공성 코팅층을 포함하고, 상기 비수용매는, 25 ℃에서의 점도가 1.4 cP 이상인 고점도 비수용매인 것을 특징으로 한다. 본 발명에 따르면, 고점도의 비수용매와 이에 대한 젖음성이 양호한 세퍼레이터를 구비함으로서 안전성이 향상되면서도 충방전 특성이 양호한 리튬 이차전지가 제공된다.
PCT/KR2010/005235 2009-08-10 2010-08-10 리튬 이차전지 WO2011019187A2 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN2010800040422A CN102272999A (zh) 2009-08-10 2010-08-10 锂二次电池
JP2011538575A JP5719306B2 (ja) 2009-08-10 2010-08-10 リチウム二次電池
EP10808336.1A EP2466678B1 (en) 2009-08-10 2010-08-10 Lithium secondary battery
US12/944,930 US9070948B2 (en) 2009-08-10 2010-11-12 Lithium secondary battery
US14/716,266 US10439188B2 (en) 2009-08-10 2015-05-19 Lithium secondary battery

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20090073369 2009-08-10
KR10-2009-0073369 2009-08-10
KR20090073374 2009-08-10
KR10-2009-0073374 2009-08-10
KR10-2010-0076689 2010-08-10
KR1020100076689A KR101060400B1 (ko) 2009-08-10 2010-08-10 리튬 이차전지

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/944,930 Continuation US9070948B2 (en) 2009-08-10 2010-11-12 Lithium secondary battery

Publications (2)

Publication Number Publication Date
WO2011019187A2 WO2011019187A2 (ko) 2011-02-17
WO2011019187A3 true WO2011019187A3 (ko) 2011-06-30

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ID=43774814

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/005235 WO2011019187A2 (ko) 2009-08-10 2010-08-10 리튬 이차전지

Country Status (6)

Country Link
US (1) US9070948B2 (ko)
EP (1) EP2466678B1 (ko)
JP (2) JP5719306B2 (ko)
KR (1) KR101060400B1 (ko)
CN (2) CN106848377B (ko)
WO (1) WO2011019187A2 (ko)

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