Binder particle aggregate for electrochemical element electrode, slurry composition for electrochemical element electrode, and their manufacturing method, and electrode for electrochemical element and electrochemical element

摘要

An object of this invention is provision of the new technique which ensures the coatability of a slurry composition and exhibits the high voltage cycling characteristic excellent in an electrochemical element. The binder particle assembly for an electrochemical device electrode of the present invention consists of a plurality of binder particles containing a polymer containing 75.0 mol% or more and 99.5 mol% or less of a nitrile group-containing monomer unit, and the pore content of the plurality of binder particles is more than 60%