ORGANIC/INORGANIC COMPOSITE SEPARATOR HAVING POROUS ACTIVE COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME

An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active la...

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Hauptverfasser:	HONG, Jang-Hyuk, Sohn, Joon-Yong, PARK, Jong-Hyeok, LEE, Sang-Young, KIM, Seok-Koo, JANG, Hyun-Min, SHIN, Byoung-Jin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator	HONG, Jang-Hyuk Sohn, Joon-Yong PARK, Jong-Hyeok LEE, Sang-Young KIM, Seok-Koo JANG, Hyun-Min SHIN, Byoung-Jin
description	An organic/inorganic composite separator includes (a) a polyolefin porous substrate having pores; and (b) a porous active layer containing a mixture of inorganic particles and a binder polymer, with which at least one surface of the polyolefin porous substrate is coated, wherein the porous active layer has a peeling force of 5 gf/cm or above, and a thermal shrinkage of the separator after being left alone at 150°C. for 1 hour is 50% or below in a machine direction (MD) or in a transverse direction (TD). This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.
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This organic/inorganic composite separator solves the problem that inorganic particles in the porous active layer formed on the porous substrate are extracted during an assembly process of an electrochemical device, and also it may prevent an electric short circuit between cathode and anode even when the electrochemical device is overheated.</abstract><oa>free_for_read</oa></addata></record>
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subjects	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title	ORGANIC/INORGANIC COMPOSITE SEPARATOR HAVING POROUS ACTIVE COATING LAYER AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME
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