UNDERLAYER FOR CELL ELECTRODES, CURRENT COLLECTOR USING THE SAME, ELECTRODE, AND LITHIUM ION SECONDARY CELL

摘要

An underlayer for better suppressing the lowering of adhesion between a current collector and an electrode layer. The underlayer is provided between a current collector and an electrode layer of a secondary cell and comprises a conductive material, and an amorphous polyester resin having a bisphenol A skeleton in the main chain, which serves as a binder for binding the conductive material together. Further disclosed are an underlayer-attached current collector wherein the underlayer is formed on a current collector, an electrode wherein an electrode is further overcoated on this current collector, and a lithium ion secondary cell provided with this electrode.

主权项

1. An underlayer is provided between a current collector and an electrode layer of a secondary cell, comprising:
a conductive agent, and an amorphous polyester resin that acts as a binder for binding the conductive agent together and having a bisphenol A skeleton in the main chain.