Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery

An electrode for a non-aqueous secondary battery comprising an electrode mixed material layer containing:

• a polymer α and a polymer β as a binder component;
• a plasticizer;
• an electrode active material;
• and a conductive material, wherein
• the polymer α is a particulate polymer that includes a (meth)acrylic acid ester monomer unit and an ethylenically unsaturated acid monomer unit, and
• the polymer β is a highly soluble polymer that includes a nitrile group-containing monomer unit, selected from acrylonitrile unit and methacrylonitrile unit, and both of an amide group-containing monomer unit, selected from acrylamide and methacrylamide, and a (meth)acrylic acid ester monomer unit having a linear chain carbon number of not less than 1 and not more than 6, wherein a proportional content of the nitrile group-containing monomer unit is not less than 70 mass % and not more than 95 mass %, total proportional content of the amide group-containing monomer unit and the (meth)acrylic acid ester monomer unit is not less than 0.1 mass % and not more than 20 mass %, and a proportional content of the amide group-containing monomer unit is not less than 0.5 mass % and not more than 8 mass % when all monomer units forming the polymer J are taken to be 100 mass %, in total.