SEPARATOR FOR RECHARGEABLE BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

The present invention provides a separator for a secondary battery having high heat resistance and strong adhesion, and provides a lithium secondary battery which includes the same and has improved heat resistance, stability, life properties, rate properties, and oxidation resistance. The separator...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, JIN KYU, SEO, DONG WAN, CHOI, HYEON SUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides a separator for a secondary battery having high heat resistance and strong adhesion, and provides a lithium secondary battery which includes the same and has improved heat resistance, stability, life properties, rate properties, and oxidation resistance. The separator for a secondary battery comprises a porous substrate and a heat resistance layer located at one surface of the porous substrate. The heat resistance layer includes an acrylic heat resistance binder, a water-soluble binder, and a filler. The acrylic heat resistance binder includes a structural unit induced from (meta) acrylate or (meta) acrylic acid, a cyano group-containing structural unit, and a sulfonate group-containing structural unit. 다공성 기재 및 상기 다공성 기재의 적어도 일면에 위치하는 내열층을 포함하고, 상기 내열층은 아크릴계 내열 바인더, 수용성 바인더, 및 필러를 포함하며, 상기 아크릴계 내열 바인더는 (메타)아크릴레이트 또는 (메타)아크릴산으로부터 유도되는 구조단위, 시아노기 함유 구조단위 및 설포네이트기 함유 구조단위를 포함하는 이차 전지용 분리막 및 이를 포함하는 리튬 이차 전지에 관한 것이다.