BINDER FOR LITHIUM ION CAPACITOR ELECTRODES, ELECTRODE FOR LITHIUM ION CAPACITORS, AND LITHIUM ION CAPACITOR

摘要

PROBLEM TO BE SOLVED: To provide a binder for lithium ion capacitor electrodes, which keeps a binding property that a binder is required to have and is superior oxidation resistant.SOLUTION: A binder for lithium ion capacitor electrodes comprises a copolymer having, as monomer units, an ethylenic unsaturated monomer having a cycloalkyl group, and other monomers copolymerizable with the ethylenic unsaturated monomer having a cycloalkyl group.