METHOD FOR REGULATING TERMINAL VOLTAGE OF CATHODE DURING OVERDISCHARGE AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY

摘要

Disclosed is a method for regulating terminal voltage of a cathode during overdischarge. Also disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature.