NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD FOR NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL SLURRY FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

摘要

Provided are: a negative electrode material for lithium ion secondary batteries, which is a mixture including first particles constituted of a plurality of flat graphite particles aggregated or bonded to one another such that primary surfaces are non-horizontal, and second particles containing silicon atoms; a method for producing the same; a negative electrode material slurry for lithium ion secondary batteries including said negative electrode material for lithium ion secondary batteries; a negative electrode for lithium ion secondary batteries; and a lithium ion secondary battery.