WO2012060604A3 - 내열성 분리막, 전극 조립체 및 이를 이용한 이차 전지와 그 제조방법 - Google Patents

내열성 분리막, 전극 조립체 및 이를 이용한 이차 전지와 그 제조방법 Download PDF

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WO2012060604A3
WO2012060604A3 PCT/KR2011/008242 KR2011008242W WO2012060604A3 WO 2012060604 A3 WO2012060604 A3 WO 2012060604A3 KR 2011008242 W KR2011008242 W KR 2011008242W WO 2012060604 A3 WO2012060604 A3 WO 2012060604A3
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secondary battery
heat
electrode assembly
negative electrode
positive electrode
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PCT/KR2011/008242
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French (fr)
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WO2012060604A2 (ko
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서인용
조병광
최송이
정용식
김윤혜
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주식회사 아모그린텍
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Publication of WO2012060604A2 publication Critical patent/WO2012060604A2/ko
Publication of WO2012060604A3 publication Critical patent/WO2012060604A3/ko
Priority to US13/869,322 priority Critical patent/US20130236766A1/en

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    • H—ELECTRICITY
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    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
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    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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    • H01M10/0436—Small-sized flat cells or batteries for portable equipment
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    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
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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
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    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
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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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    • H01M50/40—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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    • H01M50/40—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
    • H01M50/497—Ionic conductivity
    • 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
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    • Y02E60/10—Energy storage using batteries
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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)

Abstract

본 발명은 전기방사방법을 이용하여 초극세 섬유의 다공성 고분자 웹층과 전해액에 팽윤이 이루어지며 전해질 이온의 전도가 가능한 재료로 이루어진 무기공 필름층을 양극 또는 음극의 일면 또는 양면에 일체로 구비하여 전지의 과열이 발생할지라도 고분자 웹에 함유된 무기물 입자에 의해 양극과 음극 사이의 단락을 방지할 수 있는 분리막, 전극 조립체 및 이를 이용한 이차 전지와 그의 제조방법에 관한 것이다. 본 발명의 전극 조립체는, 양극, 음극, 및 상기 양극과 음극을 분리시키는 분리막을 포함하며, 상기 분리막은 제1 무기공 고분자 필름층; 및 상기 제1 무기공 고분자 필름층 위에 형성되며 내열성 고분자 또는 내열성 고분자 및 팽윤성 고분자와, 무기물 입자가 혼합된 혼합물의 초극세 섬유상으로 이루어진 다공성 고분자 웹층을 포함하는 것을 특징으로 한다.
PCT/KR2011/008242 2010-11-01 2011-11-01 내열성 분리막, 전극 조립체 및 이를 이용한 이차 전지와 그 제조방법 WO2012060604A2 (ko)

Priority Applications (1)

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US13/869,322 US20130236766A1 (en) 2010-11-01 2013-04-24 Heat-resistant separator, electrode assembly and secondary battery using the same, and method for manufacturing secondary battery

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KR20100107643 2010-11-01
KR10-2010-0107643 2010-11-01

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US13/869,322 Continuation US20130236766A1 (en) 2010-11-01 2013-04-24 Heat-resistant separator, electrode assembly and secondary battery using the same, and method for manufacturing secondary battery

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WO2012060604A2 WO2012060604A2 (ko) 2012-05-10
WO2012060604A3 true WO2012060604A3 (ko) 2012-09-07

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