EPOXY GROUP-CONTAINING VINYLIDENE FLUORIDE-BASED COPOLYMER, RESIN COMPOSITION CONTAINING THE SAME, ELECTRODE STRUCTURE AND NON-AQUEOUS ELECTROCHEMICAL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vinylidene fluoride-based copolymer having good adhesive property to a substrate such as of metal and high thermal stability, thus highly suitable as an electrode binder for non-aqueous electrochemical devices such as secondary batteries or electrical double layer capacitors, to provide a composition containing the copolymer, and to provide such an electrochemical device. SOLUTION: This copolymer is obtained by suspension copolymerization between vinylidene fluoride as the main component and a minor amount of an epoxy group-containing acrylic vinyl monomer preferably in an aqueous dispersion medium.