ALKALINE BATTERY SEPARATOR AND ALKALINE BATTERY

The present invention provides a separator for alkaline batteries and an alkaline battery improving reliability of prevention in internal short-circuits, and having good liquid retention and shielding property. To achieve this, the separator for alkaline batteries is made from a wet nonwoven fabric...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OGAWA Kentaro, KUROIWA Masahiro, KAWAZAWA Naoya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTRICITY 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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Beschreibung
Zusammenfassung:	The present invention provides a separator for alkaline batteries and an alkaline battery improving reliability of prevention in internal short-circuits, and having good liquid retention and shielding property. To achieve this, the separator for alkaline batteries is made from a wet nonwoven fabric which contains at least alkali-resistant cellulose fibers and alkali-resistant synthetic fibers bound using a binder component; wherein an average pore diameter of the wet nonwoven fabric is 1 to 10 pm. Moreover, the separator for alkaline batteries uses the wet nonwoven fabric having a maximum pore diameter of 20 to 60 pm, a liquid retention rate of 400 to 700% during immersion in a 40% by mass KOH solution, and a swelling ratio of 30 to 45% during immersion in a 40% by mass KOH solution.