| abstract |
A cathode composite material for a Li-ion battery, a method for producing the same, and its use in a Li-ion battery. The composite material of the present invention includes the following (a) to (c): (a) 1 to 2.5% by weight, preferably 1.5 to 2.2% by weight, based on the total weight of the composite material. At least one conductive additive comprising carbon nanotubes in an amount of (b) from among compounds having a LiM y (XO z ) n type polyanionic skeleton with an electrochemical potential for Li / Li + pairs of 2 V or more An electrode active material capable of reversibly forming a selected lithium insertion compound, (c) a polymer binder. The Li-ion battery including the electrode having the positive electrode composite material of the present invention has a high cycle capacity, a low internal resistance, a high charge / discharge rate, and a low storage KW cost. |