SEPERATORS IMPROVED THERMAL RESISTANCE AND SECONDARY BATTERY COMPRISING SAME

The present invention relates to a separator that includes a coating layer and a substrate and has a phase change peak temperature at the time of a first temperature increase and a second temperature increase in a differential scanning calorimetry (DSC) satisfying a specific range, a method for manu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIM WHEESUNG, KIM JEONGHAN, JO YUNKYUNG, KIM JAEWOONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	The present invention relates to a separator that includes a coating layer and a substrate and has a phase change peak temperature at the time of a first temperature increase and a second temperature increase in a differential scanning calorimetry (DSC) satisfying a specific range, a method for manufacturing the same, and an electrochemical device including the same. More specifically, the present invention relates to a separator that improves battery safety by improving heat resistance and enables stable lithium ion movement, and a lithium secondary battery including the same. 본 발명은 코팅층 및 기재를 포함하는 분리막이 시차주사열량법(DSC) 상의 1차 승온 시와 2차 승온 시의 상변화 피크온도가 특정 범위를 만족하는 분리막, 이의 제조방법 및 이를 포함하는 전기화학소자에 관한 것이다. 보다 상세하게는 내열성을 향상시켜 전지 안전성 특성을 향상시키고 안정적인 리튬이온 이동을 가능하게 하는 분리막 및 이를 구비한 리튬이차전지에 관한 것이다.