AN ELECTRODE FOR LITHIUM ION BATTERIES AND THE METHOD FOR MANUFACTURING THE SAME

摘要

The present invention relates to an electrode formed of a ternary composite of silicon, carbon, and carbon fiber foil, for lithium ion batteries. The present invention also relates to a method for manufacturing silicon/carbon/carbon fiber foil composite electrode for lithium itteries, comprising the steps of: A. mixing silicon and an organic substance capable of forming carbon after heat treatment, in a solvent, to form a slurry; B. immersing the carbon fiber foil in said slurry until the slurry coats on and penetrates into the carbon fiber foil; and C. heating the carbon fiber foil, which has been coated and penetrated with the slurry, in an inert gas atmosphere or an inert gas atmosphere mixed with a reductive gas at a temperature of at least 400? for at least 2 hours.