A non-aqueous electrolyte secondary battery negative electrode material production method

The present invention provides a method for producing a non-aqueous electrolyte secondary battery having a negative electrode material and the battery characteristics equivalent to the conventional product by a simple manufacturing process than the conventional method. After treatment by the heat of heavy petroleum-based or coal-based pitch to cool below the softening point to obtain a cured cured, the solid material was crushed to an average particle diameter (median diameter) of 60μm or less to form a fine powder asphalt , then the pitch fine powder at a pressure of 20 ~ 100MPa or 0.1 ~ 6MN / m to compression molding to form a porous material compression-molded, compression-molded for the porous body does not melt processing.