Application of terpene resin-based composite binder in electrochemical energy storage device

摘要

The present invention relates to a terpene resin-based composite binder for the preparation of electrodes of lithium-ion battery cathode or supercapacitor. The terpene resin-based composite binder is a terpene resin-based aqueous binder or a terpene resin-based oil binder; the terpene resin-based aqueous binder comprises a water-soluble terpene resin emulsion and a water-soluble polymer auxiliary agent, the water-soluble polymer auxiliary agent is one or more selected from the group of carboxymethyl cellulose, polyacrylic acid or metal salts, a mass ratio of a terpene resin in the water-soluble terpene resin emulsion to the water-soluble polymer auxiliary agent is 50:1 to 1:50; the terpene resin-based oil binder comprises an oil-soluble terpene resin and an oil-soluble polymer auxiliary agent, the oil-soluble polymer auxiliary agent is a polyvinylidene fluoride, a mass ratio of the oil-soluble terpene resin to the polyvinylidene fluoride ranges from 1:4 to 1:50.