POROUS LAYER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

POROUS LAYER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Provided is a nonaqueous electrolyte secondary battery porous layer which has both high-voltage resistance and adhesiveness. The nonaqueous electrolyte secondary battery porous layer contains: a block copolymer; and a filler, the block copolymer having: a block A containing, as a main component, uni...

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Bibliographische Detailangaben
Hauptverfasser: HAYASHI, Eri, MATSUMINE, Riku, FURUKAWA, Makoto, HASHIWAKI, Hiroki, HORIE, Kensaku
Format: Patent
Sprache:eng
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:Provided is a nonaqueous electrolyte secondary battery porous layer which has both high-voltage resistance and adhesiveness. The nonaqueous electrolyte secondary battery porous layer contains: a block copolymer; and a filler, the block copolymer having: a block A containing, as a main component, units each represented by "-(NH-Ar1-O-NHCO-Ar2-CO)-"; and a block B containing, as a main component, units each represented by "-(NH-Ar313 NHCO-Ar4-CO-)-". Not less than 50% of all Ar1 each have a structure in which two aromatic rings are connected by a sulfonyl bond. Not more than 50% of all Ar3 each have a structure in which two aromatic rings are connected by a sulfonyl bond. 30% to 70% of all Ar1 and Ar3 each have a structure in which two aromatic rings are connected by a sulfonyl bond.