Negative electrode material for non-aqueous electrolyte secondary battery, method for manufacturing negative electrode material for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and battery pack

A non-aqueous electrolyte secondary battery comprising:

• a positive electrode which inserts and extracts lithium ions;
• a negative electrode containing a negative electrode material which comprises a porous conductive particle and an active material which inserts and extracts lithium ions and is formed on the surface and within the pores of the porous conductive particle, and
• a non-aqueous electrolyte
• wherein the active material in the negative electrode material is composed of a lithium titanium complex oxide having at least one structure selected from the group consisting of nanotubes and nanowires,
• the lithium titanium complex oxide is expressed by a general formula LixTiO2 (where 0≦x<1), and
• the nanotubes or nanowires have an average diameter of 5 nm or more and 50 mn or less.