METHOD OF PRODUCING SECONDARY BATTERY ANODE MATERIAL, AND SECONDARY BATTERY

摘要

A method of producing a secondary battery anode material for producing an anode material by firing raw materials, characterized in that the raw materials are fired by being added with one kind or at least two kinds selected from a group consisting of hydrogen, water and vapor, and a conductive carbon and/or a substance capable of producing a conductive carbon by thermolysis. The secondary battery anode material obtained by this method facilitates the entry/exit of alkali metal ions including lithium ions between the interiors of anode material grains and an electrolyte due to fine−grained crystals to restrict electrode reaction polarization, and increases a contact area between the anode material and a conductivity imparting material to improve conductivity and enhance a voltage efficiency and an effective battery capacity.