WO2010076989A3 - 다공성 코팅층을 구비한 세퍼레이터 및 이를 구비한 전기화학소자 - Google Patents

다공성 코팅층을 구비한 세퍼레이터 및 이를 구비한 전기화학소자 Download PDF

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WO2010076989A3
WO2010076989A3 PCT/KR2009/007505 KR2009007505W WO2010076989A3 WO 2010076989 A3 WO2010076989 A3 WO 2010076989A3 KR 2009007505 W KR2009007505 W KR 2009007505W WO 2010076989 A3 WO2010076989 A3 WO 2010076989A3
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separator
coating layer
porous coating
particles
woven fabric
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PCT/KR2009/007505
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English (en)
French (fr)
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WO2010076989A2 (ko
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박필규
김종훈
안순호
김제영
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주식회사 엘지화학
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Priority to PL09836310T priority Critical patent/PL2378592T3/pl
Priority to EP09836310.4A priority patent/EP2378592B1/en
Priority to JP2011518670A priority patent/JP5405568B2/ja
Priority to CN200980153541.5A priority patent/CN102272977B/zh
Publication of WO2010076989A2 publication Critical patent/WO2010076989A2/ko
Publication of WO2010076989A3 publication Critical patent/WO2010076989A3/ko
Priority to US13/173,902 priority patent/US8703323B2/en

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    • H01M10/052—Li-accumulators
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    • 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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    • 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
    • H01M50/491—Porosity
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
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    • H01M2200/106—PTC
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  • Chemical & Material Sciences (AREA)
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  • Electrochemistry (AREA)
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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Cell Separators (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

본 발명의 세퍼레이터는 다수의 기공을 갖는 평면상의 부직포 기재; 및 상기 부직포 기재의 적어도 일면에 마련되어 있으며 다수의 필러 입자 및 바인더 고분자의 혼합물로 형성된 다공성 코팅층을 포함하는 세퍼레이터로서, 상기 필러 입자는, 상기 부직포 기재의 융점보다 낮은 융점을 갖는 저융점 수지와 다수의 도전재 입자의 혼합물로 된 도전성 PTC 입자들을 포함한다. 본 발명에 따른 세퍼레이터에 구비된 다공성 코팅층은 도전성 PTC 입자들에 의해 열폭주시 셧다운 기능이 부여될 뿐만 아니라, 적절한 전기 전도성을 나타내므로, 고용량의 전기화학소자의 세퍼레이터로서 유용하게 사용될 수 있다.
PCT/KR2009/007505 2008-12-30 2009-12-15 다공성 코팅층을 구비한 세퍼레이터 및 이를 구비한 전기화학소자 WO2010076989A2 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL09836310T PL2378592T3 (pl) 2008-12-30 2009-12-15 Separator zawierający porowatą warstwę powlekającą oraz zawierające go urządzenie elektrochemiczne
EP09836310.4A EP2378592B1 (en) 2008-12-30 2009-12-15 Separator including porous coating layer and electrochemical device including the same
JP2011518670A JP5405568B2 (ja) 2008-12-30 2009-12-15 多孔性コーティング層を備えたセパレータ及びこれを備えた電気化学素子
CN200980153541.5A CN102272977B (zh) 2008-12-30 2009-12-15 包括多孔性涂层的隔膜和包括所述隔膜的电化学装置
US13/173,902 US8703323B2 (en) 2008-12-30 2011-06-30 Separator including porous coating layer and electrochemical device including the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20080136592 2008-12-30
KR10-2008-0136592 2008-12-30
KR1020090123873A KR101091228B1 (ko) 2008-12-30 2009-12-14 다공성 코팅층을 구비한 세퍼레이터 및 이를 구비한 전기화학소자
KR10-2009-0123873 2009-12-14

Related Child Applications (1)

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US13/173,902 Continuation US8703323B2 (en) 2008-12-30 2011-06-30 Separator including porous coating layer and electrochemical device including the same

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WO2010076989A2 WO2010076989A2 (ko) 2010-07-08
WO2010076989A3 true WO2010076989A3 (ko) 2010-08-26

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US (1) US8703323B2 (ko)
EP (1) EP2378592B1 (ko)
JP (1) JP5405568B2 (ko)
KR (1) KR101091228B1 (ko)
CN (1) CN102272977B (ko)
PL (1) PL2378592T3 (ko)
WO (1) WO2010076989A2 (ko)

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