MANUFACTURING METHOD OF NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL OBTAINED BY THAT MANUFACTURING METHOD, NEGATIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode material for nonaqueous electrolyte secondary battery in which robust granules utilizing the binding of an organic compound prevent the negative electrode material from returning back to primary particles by pulverization, the irreversible capacity is reduced, and degradation of rate characteristics and cycle efficiency is minimized, and to provide a nonaqueous electrolyte secondary battery.

SOLUTION: The manufacturing method of a negative electrode material for nonaqueous electrolyte secondary battery includes step (1) for mixing an organic compound and scale-like graphite, step (2) for pressure molding a mixture obtained in the step (1) from one direction, step (3) for calcining a molding obtained in the step (2), and step (4) for pulverizing the molding calcined in the step (3).

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