CONDUCTIVE SILICON OXIDE POWDER, PREPARATION THEREOF, AND NEGATIVE ELECTRODE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL

摘要

A conductive silicon oxide powder in which particles of silicon oxide having the formula: SiOx wherein 1 ‰¤ x < 1.6 are covered on their surfaces with a conductive carbon coating by chemical vapor deposition treatment is useful as a negative electrode active material to construct a lithium ion secondary cell having a high capacity and improved cycle performance.