POSITIVE ELECTRODE ACTIVATOR FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD OF THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a positive electrode activator for a nonaqueous electrolyte secondary battery, wherein cycle life property and thermal stability of the positive electrode activator are improved to the utmost without reducing tap density of the positive electrode activator.

SOLUTION: The positive electrode activator for the nonaqueous electrolyte secondary battery is composed of complex oxide grains containing Li and Co, the complex oxide further containing element M1and element M2. The element M1is at least one chosen from Mg, Cu, and Zn. The element M2is at least one chosen from Al, Ca, Ba, Sr, Y, and Zr. The element M1is uniformly distributed in the above particles. The element M2is distributed more on a surface part than inside the particles.

COPYRIGHT: (C)2004,JPO