NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION BATTERY, AND USE THEREFOR

摘要

A lithium ion battery is obtained by using a negative electrode material for lithium ion battery comprises a composite material comprising silicon-containing particles, graphitic carbon material particles, and a carbonaceous carbon material, in which the composite material has a ratio (A/B) of an area (A) of a peak near 100 eV derived from metal Si to an area (B) of a peak near 103 eV derived from silicon oxide, as measured by XPS, of not less than 0.10 and not more than 2.30.