ANODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD OF PRODUCING ANODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, ANODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY

摘要

An anode material for a lithium ion secondary battery including a carbon material satisfying the following (1) to (3), (6), and (7):(1) an average particle size (D50) is 22 μm or less,(2) D90/D10 of particle sizes is 2.2 or less,(3) a linseed oil absorption amount is 50 mL/100 g or less,(6) a portion of the carbon material with a sphericity of from 0.6 to 0.8 and a particle size of from 10 μm to 20 μm is 5% by number or more, and(7) a portion of the carbon material with the sphericity of 0.7 or less and a particle size of 10 μm or less is 0.3% by number or less.