公开(公告)号：US10673068B2

公开(公告)日：2020-06-02

申请号：US15753055

申请日：2016-12-26

申请人： LG Chem, Ltd.

发明人： Min-A Park ,  Dae-Hong Kim ,  Jae-Kyung Kim ,  Won-Hee Jeong

IPC分类号： H01M4/36 ,  H01M4/485 ,  H01M4/48 ,  H01G11/28 ,  H01G11/46 ,  H01G11/04 ,  H01M4/131 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/62 ,  C01F7/02 ,  C01G23/00 ,  H01G11/52 ,  H01G11/86 ,  H01M4/02

摘要： The present disclosure relates to a negative electrode active material having excellent output characteristics and causing little gas generation, and an electrode including the negative electrode active material. The negative electrode active material includes metal oxide-lithium titanium oxide (MO-LTO) composite particles which have a shape of secondary particles formed by aggregation of primary particles, wherein the primary particles have a core-shell structure including a core and a shell totally or at least partially covering the surface of the core, the core includes primary particles of lithium titanium oxide (LTO), and the shell includes a metal oxide.

公开(公告)号：US10411249B2

公开(公告)日：2019-09-10

申请号：US15542994

申请日：2016-01-21

申请人： LG CHEM, LTD.

发明人： Soo-Hyun Lim ,  Dae-Hong Kim ,  Won-Hee Jeong ,  Tae-Jin Park

IPC分类号： H01M4/02 ,  H01M4/131 ,  H01M10/052 ,  H01M4/40 ,  H01M4/485

摘要： The present disclosure relates to a lithium secondary battery using lithium titanium oxide (LTO) as a negative electrode active material. More specifically, the present disclosure relates to a secondary battery having improved input and output characteristics through the optimization of the pore ratio of the LTO. The lithium secondary battery including the lithium titanium oxide negative electrode active material according to the present disclosure provides an effect of significantly improved output density through the maximization of reaction active sites with electrolyte due to a porous structure.

公开(公告)号：US20180233741A1

公开(公告)日：2018-08-16

申请号：US15753055

申请日：2016-12-26

申请人： LG Chem, Ltd.

发明人： Min-A Park ,  Dae-Hong Kim ,  Jae-Kyung Kim ,  Won-Hee Jeong

IPC分类号： H01M4/36 ,  H01G11/28 ,  H01G11/46 ,  H01G11/04 ,  H01G11/52 ,  H01G11/86 ,  C01G23/00 ,  C01F7/02 ,  H01M4/485 ,  H01M4/48

CPC分类号： H01M4/366 ,  C01F7/02 ,  C01G23/005 ,  C01P2004/84 ,  C01P2006/40 ,  H01G11/04 ,  H01G11/28 ,  H01G11/46 ,  H01G11/52 ,  H01G11/86 ,  H01M4/131 ,  H01M4/483 ,  H01M4/485 ,  H01M4/628 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

摘要： The present disclosure relates to a negative electrode active material having excellent output characteristics and causing little gas generation, and an electrode including the negative electrode active material. The negative electrode active material includes metal oxide-lithium titanium oxide (MO-LTO) composite particles which have a shape of secondary particles formed by aggregation of primary particles, wherein the primary particles have a core-shell structure including a core and a shell totally or at least partially covering the surface of the core, the core includes primary particles of lithium titanium oxide (LTO), and the shell includes a metal oxide.