▎ 摘 要
NOVELTY - A composite material preparation method involves providing graphene oxide, and reducing the graphene oxide by providing graphene. The graphene oxide is reduced with the active carbon and PTFE to obtain a composite material. USE - Method for preparing a composite material that is utilized for preparing a thin film electrode and a super capacitor having an electric double-layer (all claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing a thin film electrode (2) a method for preparing a super capacitor (3) a composite material prepared by a method.