ANODE MATERIAL OF EXCELLENT CONDUCTIVITY AND HIGH POWER SECONDARY BATTERY EMPLOYED WITH THE SAME

摘要

An anode material with excellent conductivity is provided to ensure high power density due to low internal resistance of a secondary battery and to improve energy density and cycleability. An anode material comprises a carbon material and lithium titanium oxide. The average particle diameter rate of LTO to the average particle diameter of the carbon material is 0.1 ~ 20%. The LTO is mainly distributed on the surface of the carbon-based cathode active material. The carbon material is at least one or two selected from a group consisting of artificial graphite of potato shape or MCMB shape, surface-treated natural graphite, phenol resin, hard carbon thermally decomposed with a furan resin, cokes and graphitizing carbon graphitized with needle cokes or pitch.