SEPARATOR, AND ELECTROCHEMICAL DEVICE USING THE SAME

PROBLEM TO BE SOLVED: To provide a separator being excellent in liquid permeability while having a porous heat-resistant layer, and an electrochemical device using the separator.SOLUTION: The separator comprises a porous film 1, and a porous heat-resistant resin film 2 disposed on the porous film 1....

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Bibliographische Detailangaben
Hauptverfasser:	EMOTO KAZUTOSHI, SATOMI TOMOAKI, MINAMI TAKAMASA
Format:	Patent
Sprache:	eng
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 separator being excellent in liquid permeability while having a porous heat-resistant layer, and an electrochemical device using the separator.SOLUTION: The separator comprises a porous film 1, and a porous heat-resistant resin film 2 disposed on the porous film 1. An average pore diameter of a first region 2a of the heat-resistant resin film 2 including an interface with the porous film 1 is larger than that of a second region 2b of the heat-resistant resin film 2 farther from the interface than the first region.