Long porous separator sheet, method for producing the same, roll, and lithium-ion battery

A lateral surface (12e) of a long separator sheet (12a, 12b) has a value of edge length (R)/longer side length (P) which is less than 1.04. It is therefore possible to provide the long porous separator sheet that is less likely to be torn in processing.

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Bibliographische Detailangaben
Hauptverfasser:	Yashiki, Daizaburo, Sembara, Masateru, Ozeki, Tomoaki
Format:	Patent
Sprache:	eng
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:	A lateral surface (12e) of a long separator sheet (12a, 12b) has a value of edge length (R)/longer side length (P) which is less than 1.04. It is therefore possible to provide the long porous separator sheet that is less likely to be torn in processing.