BASE LAYER FOR BATTERY ELECTRODES, COLLECTOR USING SAME, ELECTRODE AND LITHIUM ION SECONDARY BATTERY

摘要

Provided are: a base layer that is capable of suppressing decrease of adhesion between a collector and an electrode layer; a collector with a base layer, which is obtained by forming the base layer on a collector; an electrode which is obtained by additionally coating an electrode layer on the collector; and a lithium ion secondary battery which is provided with the electrode. This base layer is provided between a collector and an electrode layer of an electrode of a secondary battery, and contains conductive materials and an amorphous polyester resin having a bisphenol A skeleton in the main chain, said amorphous polyester resin serving as a binder for binding the conductive materials.