METHOD OF MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND METHOD OF MANUFACTURING LITHIUM ION SECONDARY BATTERY

A method of manufacturing a negative electrode material for a lithium ion secondary battery, the method includes (a) a step of obtaining a mixture containing a graphitizable aggregate and a graphitizable binder; (b) a step of obtaining a molded product by molding the mixture; (c) a step of obtaining a graphitized product by graphitizing the molded product; and (d) a step of obtaining a ground product by grinding the graphitized product, and a standard deviation of particle size distribution of the aggregate is less than 0.20.