Patent ID: 6773852
Filing Date: 2004-08-10
Classification: C01G,C01P,H01M,Y02E

Abstract:
A lithium secondary cell, comprising a positive electrode containing lithium oxide as an active material a negative electrode containing a carbonaceous material and a non-aqueous electrolyte, wherein the lithium oxide of the positive electrode is a lithium composite oxide expressed asLiaNi(1-x-y)COxMyO2 where M is at least one metal atom selected from the group consisting of Al, Ca, Mg and B,a=0.97Ëœ1.05, x=0.1Ëœ0.3, and 0said lithium composite oxide including generally spherical secondary particles, and having a tap density of 2.4Ëœ3.2 g/cm3.