BINDER COMPOSITION FOR ELECTROCHEMICAL ELEMENTS, SLURRY COMPOSITION FOR ELECTROCHEMICAL ELEMENT FUNCTIONAL LAYER, SLURRY COMPOSITION FOR ELECTROCHEMICAL ELEMENT ADHESION LAYER, AND COMPOSITE MEMBRANE

摘要

Provided is a binder composition for electrochemical elements, having excellent binding properties and capable of forming a functional layer that can improve the rate characteristics and cycle characteristics of electrochemical elements (e.g., secondary batteries). This binder composition for electrochemical elements includes a binding material and a bicarbonate. The binding material is a polymer having at least one type of functional group selected from the group consisting of a carboxyl group, a hydroxyl group, a cyano group, an amino group, an epoxy group, an oxazoline group, an isocyanate group, and a sulfonic acid group.