LITHIUM ION BATTERY SEPARATOR

To provide a lithium ion battery separator capable of reducing internal resistance of the lithium ion battery.SOLUTION: The lithium ion battery separator includes: a resin porous membrane; and an inorganic particle layer containing inorganic particles. The inorganic particle layer includes: an inorg...

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Bibliographische Detailangaben
Hauptverfasser:	KATO MAKOTO, AIZAWA WAKANA
Format:	Patent
Sprache:	eng ; jpn
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:	To provide a lithium ion battery separator capable of reducing internal resistance of the lithium ion battery.SOLUTION: The lithium ion battery separator includes: a resin porous membrane; and an inorganic particle layer containing inorganic particles. The inorganic particle layer includes: an inorganic particle layer A containing magnesium hydroxide having an average particle diameter of 2.0 to 4.0 μm; and an inorganic particle layer B containing magnesium hydroxide with an average particle size of 0.5 μm or more and less than 2.0 μm.SELECTED DRAWING: None 【課題】リチウムイオン電池の内部抵抗を低くすることができるリチウムイオン電池用セパレータを提供することを課題とする。【解決手段】樹脂製多孔膜と、無機粒子を含む無機粒子層とを備えてなるリチウムイオン電池用セパレータにおいて、該無機粒子層として、平均粒子径２．０〜４．０μｍの水酸化マグネシウムを含む無機粒子層Ａと、平均粒子径０．５μｍ以上２．０μｍ未満の水酸化マグネシウムを含む無機粒子層Ｂとを有するリチウムイオン電池用セパレータ。【選択図】なし