Binder for non-aqueous secondary battery porous membrane-use, composition for non-aqueous secondary battery porous membrane-use, porous membrane for non-aqueous secondary battery-use, and non-aqueous secondary battery

Provided is a binder for non-aqueous secondary battery porous membrane-use that enables formation of a porous membrane having excellent durability and that can improve stability under high shear of a composition for porous membrane-use. The binder for non-aqueous secondary battery porous membrane-us...

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Bibliographische Detailangaben
1. Verfasser:	Sasaki, Tomokazu
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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 USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Provided is a binder for non-aqueous secondary battery porous membrane-use that enables formation of a porous membrane having excellent durability and that can improve stability under high shear of a composition for porous membrane-use. The binder for non-aqueous secondary battery porous membrane-use includes a particulate polymer. The particulate polymer is a random copolymer including at least 35 mass % of an alkyl (meth)acrylate monomer unit and at least 20 mass % and no greater than 65 mass % of an aromatic monovinyl monomer unit. A degree of swelling of the particulate polymer with respect to a non-aqueous electrolysis solution is greater than a factor of 1 and no greater than a factor of 2.