Cobalt oxide for lithium secondary battery lithium cobalt oxide for lithium secondary battery formed from the same preparing method of the lithium cobalt oxide and lithium secondary battery including positive electrode comprising the lithium cobalt oxide

摘要

Provided are a cobalt oxide (Co_3O_4) for a lithium secondary battery, a lithium cobalt oxide for a lithium secondary battery formed therefrom, a manufacturing method thereof, and a lithium secondary battery provided with a positive electrode comprising the same. The cobalt oxide (Co_3O_4) for a lithium secondary battery has 25-50 Mpa of the particle strength, has 14-18 m of the granularity (D10) at a point reaching 10% of the accumulated volume, and has the difference between the granularity (D10) and the granularity (D90) at the point reaching 90% of the accumulated volume. Provided is the cobalt oxide for a lithium secondary battery, having the improved particle strength.