FUNCTIONAL LAYER FOR ELECTROCHEMICAL ELEMENTS AND METHOD FOR PRODUCING SAME, SEPARATOR WITH FUNCTIONAL LAYER FOR ELECTROCHEMICAL ELEMENTS AND METHOD FOR PRODUCING SAME, AND ELECTROCHEMICAL ELEMENT AND METHOD FOR PRODUCING SAME

摘要

A functional layer for electrochemical elements according to the present invention contains inorganic particles and a particulate polymer, and is characterized in that: the functional layer has particle fall-off parts; the area ratio of the particle fall-off parts in the total area of the particulate polymer and the particle fall-off parts is from 0.1% to 40.0% when the surface of the functional layer for electrochemical elements is viewed in plan; and the volume average particle diameter of the particulate polymer is larger than the thickness of an inorganic particle layer that contains the inorganic particles.