POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide: a positive active material for a rechargeable lithium battery which suppresses deterioration of discharge capacity caused by repeated charge and discharge cycles and improves cycle-life characteristics; and a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same.SOLUTION: The positive active material for a rechargeable lithium battery includes a lithium manganese oxide-based solid solution having a specific surface area of 3-12 m/g and a crystallite diameter of 40-120 nm.