MANUFACTURING METHOD OF Si-CONTAINING CARBON MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium ion secondary battery, composed of a composite of Si and C, excellent in initial capacity and cycle characteristics.SOLUTION: The present invention provides a method of manufacturing Si-containing carbon material that is obtained by carbonizing an organic Si compound formed by combining an organic part having a reactive functional group and an aromatic ring and an Si part having a structure represented by Formula (1). [Ris an alkyl group of C1 to 8; Ris an alkyl group or an alkoxy group of C1 to 8; and q is an integer of 1 to 100]SELECTED DRAWING: None