ADHESIVE COMPOSITION FOR ELECTRICAL STORAGE DEVICE, FUNCTIONAL LAYER FOR ELECTRICAL STORAGE DEVICE, ELECTRICAL STORAGE DEVICE, AND METHOD OF PRODUCING ELECTRICAL STORAGE DEVICE

An adhesive composition for an electrical storage device contains a polymer A and a solvent. The polymer A includes a nitrile group-containing monomer unit in a proportion of more than 50.0 mass % and not more than 90.0 mass %, and also includes an alicyclic (meth)acrylic acid ester monomer unit.