MANUFACTURING METHOD OF NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY PROVIDED THEREBY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode active material for a nonaqueous electrolyte secondary battery which is high in capacity; and a high-capacity battery using it.

SOLUTION: This high-capacity battery is characterized by using this negative electrode active material for a nonaqueous electrolyte secondary battery that is characterized by being a compound containing three layers of a minute Si phase, SiO2and a carbonaceous substance. The negative electrode active material can be manufactured by baking SiOx and a carbonaceous substance material.

COPYRIGHT: (C)2009,JPO&INPIT