WINDING CORE SEPARATOR ROLL

The present invention suppresses winding displacement of a battery separator to a winding core. The core has one or more grooves extending in the width direction of the core on the outer circumferential surface. The groove satisfies N/D>0.0025 when the depth is equal to or greater than 30um, the...

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Bibliographische Detailangaben
1. Verfasser:	HASHIWAKI HIROKI
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS CONVEYING ELECTRICITY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention suppresses winding displacement of a battery separator to a winding core. The core has one or more grooves extending in the width direction of the core on the outer circumferential surface. The groove satisfies N/D>0.0025 when the depth is equal to or greater than 30um, the length of the outer periphery of the core is D mm, and the number of grooves formed on the outer periphery is N. [과제] 전지용 세퍼레이터의 권취 코어에 대한 권취 어긋남을 억제한다. [해결 수단] 코어는, 외주면에, 코어의 폭 방향으로 연장되는 1개 이상의 홈이 형성되어 있고, 홈은 깊이가 30㎛ 이상이고, 코어의 외주의 길이를 D ㎜로 하고, 외주면에 형성되어 있는 홈의 개수를 N개로 했을 때, N/D>0.0025를 만족시킨다.