ANODE MATERIALS OF LITHIUM SECONDARY BATTERY

摘要

Provided is a binder in the present invention, which is suitable for each silicon which is a high capacity negative electrode material, a silicon-carbon composite and a silicon alloy based-carbon electrode active material and reduces swelling for the same wherein the active material has greater connection between the active material particles and greater connection with current collector and makes a secondary battery performance such as a cycle life property better. The electrode composition for secondary lithium battery of the present invention has the characteristics in that the composite material of 1-10 wt% of silicon and 90-99 wt% of carbon are used as negative electrode materials, and polyamide-imide is used as the binder.