PREPATATION OF MATERIALS FOR ENERGY STORAGE DEVICES USING MONOLITHIC 3 DIMENSIONAL OF REDUCED GRAPHENE OXIDE AND FABRICATION METHOD THEREBY

摘要

The present invention provides a method for manufacturing a negative electrode for an energy storage element including reduced graphene oxide with a monolithic structure, a negative electrode manufactured therefrom and an energy storage device including a negative electrode, wherein the method comprises the steps of: mixing reduced graphene oxide paste with an aqueous polymer to make complex paste; covering the complex paste on a current collector; and freeze-drying the current collector to form monolithic reduced grahene oxide. Thus, the present invention freeze-dries the complex paste of the reduced graphene oxide and the aqueous polymer to form the monolithic three dimensional structure with high conductivity, thereby increasing regularly arranged active sites of the reduced graphene oxide, implementing a long life cycle by forming a stable structure and providing an electrode effect of the energy storage element having high capacity and high output properties.