公开(公告)号：US20210111396A1

公开(公告)日：2021-04-15

申请号：US17035660

申请日：2020-09-28

申请人： ECOPRO BM CO., LTD.

发明人： Moon Ho CHOI ,  Jun Won SUH ,  Jin Kyeong YUN ,  Jung Han LEE ,  Mi Hye YUN ,  Seung Woo CHOI ,  Gwang Seok CHOE ,  Joong Ho BAE ,  Jin-Oh SON

IPC分类号： H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/134 ,  H01M10/0525 ,  C01G53/00

摘要： The present invention relates to a lithium composite oxide including a coating layer having a boron-containing oxide and a lithium secondary battery including the same. More particularly, the present invention relates to a lithium composite oxide improved in lifetime and capacity characteristics by inducing a predetermined correlation between the molar ratio of nickel in a lithium composite oxide including a coating layer having a boron-containing oxide and a full width at half-maximum (FWHM; deg., 2θ) of a (104) peak among XRD peaks defined by the hexagonal lattice with an R-3m space group, and a lithium secondary battery including the same.