LITHIUM SECONDARY BATTERY WITH IMPROVED DISCHARGING CHARACTERISTIC BY ANODE ACTIVATING MATERIAL CONTAINING SPECIFIED LITHIUM-COBALT COMPOSITE OXIDES

摘要

PURPOSE: Provided is a lithium secondary battery having improved discharging characteristic by anode activating material containing specified lithium-cobalt composite oxides. CONSTITUTION: The secondary battery comprises: an anode(3) containing lithium-cobalt composite oxide as anode activating material, a cathode(2), and a separator(1) equipped between the anode and the cathode. The lithium-cobalt composite oxide comprises 100ppm or less of Ni and is represented by formula of LixCo(1-y)MyO2N2 (wherein M means at least one element selected from transition metal elements, elements of groups II, XIII, XIV and XV among periodic table of elements except for Co and Ni; N is halogen element; x is 0.10=x=1.25, y is 0=y=0.05, and z is 0=z=0.05).