POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTRY

摘要

PURPOSE: To obtain a positive electrode for a lithium secondary battery and a lithium secondary battery which is small in overvoltage, small in average operating voltage drop at the time of high-current discharging and also small in capacity. CONSTITUTION: Conductive material in positive electrode compound containing compound oxide of lithium as the positive electrode active material comprises carbon black of number average primary grain size up to 0.1μm and graphite of weight average grain size up to 20μm. 5-50 wt.% of the carbon black is contained in the conductive material.