Patent ID: 7547493
Filing Date: 2009-06-16
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. A method for manufacturing a lithium cobalt oxide, said method comprising the steps of: providing a lithium cobalt oxide (A) composed of uniformly monodisperse particles, which refers to particles present independently of each other, having an average particle diameter in a range of 5 to 30 μm and a tap density of 1.7 to 3.0 g/cm providing a lithium cobalt oxide (B) composed of an aggregation of primary particles forming a secondary particle, having an average particle diameter in a range of 0.1 to 10 μm and a tap density of 1.0 to 2.0 g/cm selecting a lithium cobalt oxide (A) and a lithium cobalt oxide (B) so that a difference in the tap density between the lithium cobalt oxide (A) and the lithium cobalt oxide (B) is at least 0.2 g/cm mixing the lithium cobalt oxide (A) and the lithium cobalt oxide (B) selected in said step of selecting.