非水電解質二次電池用負極活物質の製造方法およびこれによって得られる非水電解質電池用負極活物質

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode active material for a nonaqueous electrolyte secondary battery which has high capacity, and to provide a high capacity battery using it.SOLUTION: A high-capacity battery uses a negative electrode active material for a nonaqueous electrolyte secondary battery that is a compound containing three phases of a minute Si phase, SiO, and a carbonaceous substance. The negative electrode active material can be manufactured by burning SiOx and carbonaceous substance material.