CELL SEPARATOR

PROBLEM TO BE SOLVED: To provide a thinned separator whose resistivity is low.SOLUTION: The cell separator includes a porous film layer containing inorganic particles on a porous support, wherein the inorganic particles are inorganic salt particles, and the porous film layer contains a water-soluble...

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Bibliographische Detailangaben
Hauptverfasser: TAKAOKA KAZUCHIYO, HYODO KENJI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a thinned separator whose resistivity is low.SOLUTION: The cell separator includes a porous film layer containing inorganic particles on a porous support, wherein the inorganic particles are inorganic salt particles, and the porous film layer contains a water-soluble cellulose derivative. It is preferable that a solubility product of the inorganic salt particles is equal to or less than 10.