▎ 摘　　要

NOVELTY - Cathode material comprises a graphite material, a binder and a conductive agent, where the graphite material comprises first graphite material and second graphite material, the first graphite material is synthetic graphite whose particle diameter D50 is 9-20 microns and specific surface area is 0.9-2 m2/g, and the second graphite material is synthetic graphite with particle diameter D50 is 3-9 microns and specific surface area is 1.8-3.5 m2/g. USE - The cathode material is useful in plug-in hybrid electric vehicle (PHEV) type automobile. ADVANTAGE - The cathode material effectively improves energy density and power performance of the lithium-ion battery, reduces battery impedance, ensures high power performance requirement of the PHEV type automobile, improves energy density of the power battery, and improves driving mileage of the automobile. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) cathode sheet; (2) preparing cathode sheet; and (3) lithium ion battery.