LAMINATED MICROPOROUS FILM AND METHOD FOR PRODUCING THE SAME AND CELL SEPARATOR

PROBLEM TO BE SOLVED: To provide a laminated microporous film having excellent thermal dimensional stability and electric resistance in addition to heat resistance, shutdown function or the like and a method for producing the same, and to provide a cell separator.SOLUTION: There is provided a lamina...

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Hauptverfasser:	NADA JUN, FURUKAWA AKIRA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a laminated microporous film having excellent thermal dimensional stability and electric resistance in addition to heat resistance, shutdown function or the like and a method for producing the same, and to provide a cell separator.SOLUTION: There is provided a laminated microporous film which comprises a microporous film including a polyolefin, a porous film including inorganic particles and a resin binder which is laminated on one surface or both surfaces of the microporous film, where the microporous film has a thickness of 1.0 to 4.0 μm and a basis weight of 1.0 to 5.0 g/m.SELECTED DRAWING: None 【課題】耐熱性、シャットダウン機能等に加えて、熱寸法安定性及び電気抵抗にも優れた積層微多孔フィルム及びその製造方法、並びに電池用セパレータを提供することを目的とする。【解決手段】ポリオレフィンを含む微多孔膜と、前記微多孔膜の片面又は両面に積層された、無機粒子と樹脂バインダとを含む多孔層と、を備え、前記多孔層の厚みが、１．０〜４．０μｍであり、前記多孔層の目付量が１．０〜５．０ｇ／ｍ2である、積層微多孔フィルム。【選択図】なし