▎ 摘　　要

NOVELTY - The method involves mixing graphene, carbon black, and a binder to obtain a first mixture. The positive electrode active material is mixed with the first mixture to obtain a second mixture. A dispersion medium is mixed with the second mixture to obtain electrode slurry. The electrode slurry is applied to a positive electrode current collector. The electrode slurry is dried to prepare a positive electrode. The positive electrode and the negative electrode are superimposed to prepare a secondary battery. The positive electrode active material has lithium, cobalt, nickel, manganese, aluminum, titanium and fluorine. The resin is a secondary battery made of polyvinylidene fluoride. USE - Method for producing secondary battery used in vehicle (all claimed) such as electric vehicle and hybrid vehicles. ADVANTAGE - The aggregation of the second carbon material and the aggregation of the first carbon material are prevented, and reduces the fraction of the mixture accounted for by aggregates. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a secondary battery. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view of the electrodes. (Drawing includes non-English language text)