CATHODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD OF CATHODE ACTIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a lithium secondary battery excellent in discharge characteristics and cycle characteristics in a large current.

SOLUTION: The cathode active material includes an active material carrier capable of storing and discharging lithium ion and solid powder for coating at least a part of a surface of the active material carrier. The above solid powder includes an olivine structure and contains primary particles containing an electrolyte decomposition inhibiting agent with crystallinity as shown in LiMgPO4and an electrolyte decomposition inhibiting agent with crystallinity as shown in Li3PO4as a mixed phase.

COPYRIGHT: (C)2010,JPO&INPIT