| abstract |
The present invention relates to a cathode mixture for a lithium secondary battery and a lithium secondary battery using the same. According to the present invention, the cathode mixture for the lithium secondary battery including a cathode active material, a binding agent, and a conductive material comprises: a core unit in which the cathode active material is formed of a metal or a metalloid capable of being alloyed and dealloyed with lithium, or a compound thereof; and a plurality of cathode active material particles which have shell portions formed on the outside of the core unit and including Ketjen black, wherein the conductive material includes carbon nano fiber. The cathode mixture of the present invention employs a metal-based cathode active material capable of suppressing expansion in volume, and uses a conductive material with an excellent dispersing effect, thereby improving the duration of the battery. |