公开(公告)号：US11165059B2

公开(公告)日：2021-11-02

申请号：US16341329

申请日：2018-03-13

申请人： LG CHEM, LTD.

发明人： Sung-Bin Park ,  Ji-Young Park ,  Bo-Ram Lee ,  Chi-Ho Jo ,  Jung-Min Han ,  Hyuck Hur ,  Wang-Mo Jung

IPC分类号： H01M4/485 ,  C01G23/00 ,  H01M10/0525 ,  H01M4/02

摘要： A negative electrode active material including lithium titanium oxide particles, wherein the lithium titanium oxide particles have a Na content of 50 ppm-300 ppm, a K content of 500 ppm-2400 ppm and a crystallite size of 100-200 nm, and a lithium secondary battery including the same.

公开(公告)号：US11114654B2

公开(公告)日：2021-09-07

申请号：US16311110

申请日：2018-03-21

申请人： LG CHEM, LTD.

发明人： Bo-Ram Lee ,  Sung-Bin Park ,  Ji-Young Park ,  Chi-Ho Jo ,  Jung-Min Han ,  Hyuck Hur ,  Wang-Mo Jung

IPC分类号： H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M2/16 ,  H01M10/0525 ,  H01M50/46 ,  H01M4/02

摘要： Disclosed are a negative electrode active material including lithium titanium oxide particles, wherein the lithium titanium oxide particles have an average particle diameter (D50) of 0.5-9 μm, a specific surface area of 3-7 m2/g, and a pellet density of 1.7 g/cc or more under a pressure of 64 MPa, and a lithium secondary battery including the same.