ELECTROCHEMICAL CELL WITH TWO TYPES OF SEPARATORS

Provided is an electrochemical device comprising two types of separators having different energy to break, wherein the outermost electrode layer of t he electrode assembly includes an active material non-coated cathode, an active material non-coated anode, and a separator (second separator) disposed...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, SEOKKOO, LEE, YOUNG TAE, LEE, SANG-YOUNG, PARK, PIL KYU, AHN, SOONHO, KIM, JE YOUNG
Format:	Patent
Sprache:	eng ; fre
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:	Provided is an electrochemical device comprising two types of separators having different energy to break, wherein the outermost electrode layer of t he electrode assembly includes an active material non-coated cathode, an active material non-coated anode, and a separator (second separator) disposed betwe en the cathode and anode and having relatively low energy to break compared to that of separators (first separator) in other electrode layers. Therefore, i t is possible to remarkably improve safety of the battery by including primary short-circuiting in the outermost electrode layer of a battery, thus facilitating heat dissipation of the battery, upon application of external impact.