{HEAD ~ The present invention} relates to a long cycle life and high output spinel cathode active material, in which an inner core portion and {TAIL ~ an outer shell portion} have different transition metal composition distributions 
{ HEAD ~ The present invention } relates to a long cycle life and high output spinel cathode active material , in which an inner core portion and { TAIL ~ an outer shell portion } have different transition metal composition distributions
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH