COATED CARBONACEOUS PARTICLES PARTICULARLY USEFUL AS ELECTRODE MATERIALS IN ELECTRICAL STORAGE CELLS, AND METHODS OF MAKING THE SAME

摘要

A process for the production of coated carbonaceous particles, and the coated carbonaceous particles produced thereby of which process comprises the steps of: providing particles of a carbonaceous material; providing particles of a carbonaceous material; providing a coating of a fusible, carbon residue forming material onto the surface of said particles; stabilizing the coated particles by subjecting said particles to an oxidation reaction using an oxidizing agent; subsequently carbonizing the coated particles; and, optionally thereafter graphitizing the coated particles. The coated carbonaceous particles find particular use in electrodes of electrical storage cells, especially rechargeable lithium ion storage cells.