CATHODE MATERIAL CONTAINING TWO TYPES OF CONDUCTIVE MATERIALS AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

摘要

A cathode slurry comprising a binary conductive agent is provided to realize improved conductivity and loading density and excellent discharge characteristics, and to ensure uniform quality among batteries. A cathode slurry comprises a cathode active material, a conductive agent and a binder, wherein the conductive agent contains (a) a flake type carbonaceous material, and (b) a spherical carbonaceous material in a weight ratio(a/b) of 0.01-1. The flake type carbonaceous material is at least one material selected from the group consisting of SP270, KS6, KS10 and KS15. The spherical carbonaceous material is at least one material selected from the group consisting of acetylene black, denka black and super-P.