A negative electrode material for a lithium secondary battery, a negative electrode for a lithium secondary battery, a lithium secondary battery using the same, a method for producing a negative electrode material for a lithium secondary battery, and a method for producing a negative electrode for a lithium secondary battery.

摘要

PPROBLEM TO BE SOLVED: To provide an anode material for a lithium secondary battery having a large capacity and superior charge/discharge cycle characteristics and a lithium secondary battery using the anode material to solve the problem that a carbon nanofiber used as a conductive agent for an anode material for a lithium secondary battery offers an insufficient effect in reducing expansion/contraction distortion of an anode active material in a charge/discharge cycle due to a shape-related constraint. PSOLUTION: A silicon-based material having a large discharge capacity is used as an anode active material, and a hybridized carbon nanohorn is used as a conductive agent to ensure sufficient volume occupation rate of the anode active material. This allows providing an anode material for a lithium secondary battery having a large capacity and superior charge/discharge cycle characteristics and a lithium secondary battery using the anode material. PCOPYRIGHT: (C)2010,JPO&INPIT