COMPOSITION FOR HEAT RESISTANT POROUS LAYER FORMATION, SEPARATION FILM INCLUDING HEAT RESISTANT POROUS LAYER, ELECTROCHEMICAL BATTERY ARRANGED BY USE OF SEPARATION FILM, AND METHOD FOR MANUFACTURING SEPARATION FILM

PROBLEM TO BE SOLVED: To provide: a separation film which can retain its own form rather than bursts even under an environment such that the temperature in a battery is raised to 200°C or higher in several seconds, and which has a good adhesive force; and an electrochemical battery arranged by use o...

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Bibliographische Detailangaben
Hauptverfasser:	PARK JIN KYU, CHOI HYEON SUN, CHOI JONG SUP
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide: a separation film which can retain its own form rather than bursts even under an environment such that the temperature in a battery is raised to 200°C or higher in several seconds, and which has a good adhesive force; and an electrochemical battery arranged by use of such a separation film.SOLUTION: An electrochemical battery separation film and an electrochemical battery are provided. The separation film comprises: a porous base material; and a heat resistant porous layer formed on one or each face of the porous base material. In the separation film, the heat resistant porous layer includes a crosslink type binder. The separation film has a tensile strength of 50-350 kgf/cmafter left at 200°C for 10 minutes.SELECTED DRAWING: Figure 1 【課題】電池内部の温度が数秒で２００℃以上に上昇する環境でも分離膜が破裂せずに形態を維持でき、かつ接着力が良好な分離膜およびこれを用いた電気化学電池を提供すること。【解決手段】多孔性基材、および多孔性基材の一面あるいは両面に形成された耐熱性多孔層を含み、耐熱性多孔層は架橋型バインダーを含み、２００℃で１０分間放置した後の引張強度が５０ｋｇｆ／ｃｍ2ないし３５０ｋｇｆ／ｃｍ2である、電気化学電池分離膜およびこれを含む電気化学電池を提供する。【選択図】図１