NEGATIVE ACTIVE MATERIAL FOR LITHIUM BATTERY AND BATTERY COMPRISING THE SAME

摘要

The present invention relates to (a) a core containing one or more non-carbon materials selected from a group comprising silicon, nickel, germanium, and titanium; and (b) a negative active material containing an organic polymer coating layer comprising polymer compounds, which have 50 wt% or more of fluorine content on the core surface. [Reference numerals] (AA) Cycling efficiency;(BB) Active material applied electrode which is not treated with fluorine;(CC) Active material applied electrode which is coated with fluorine;(DD) Cycle number (N)