公开(公告)号：US20230327107A1

公开(公告)日：2023-10-12

申请号：US18210427

申请日：2023-06-15

Applicant: LG Energy Solution, Ltd.

Inventor： So Ra Baek ,  Min Suk Kang ,  Sang Wook Lee ,  Wang Mo Jung ,  Dong Hun Lee ,  Hye Lim Jeon ,  Eun Sol Lho

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/13915 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/62 ,  C01G53/00 ,  C01B35/12

CPC classification number: H01M4/525 ,  H01M4/0471 ,  H01M4/366 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/13915 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/628 ,  C01G53/50 ,  C01B35/121 ,  H01M2004/028

Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1.


LiaM1bOc  [Formula 1]



wherein, M1 is at least one selected from the group consisting of boron (B), aluminum (Al), silicon (Si), titanium (Ti), and phosphorus (P), and 1≤a≤4, 1≤b≤8, and 1≤c≤20.

公开(公告)号：US12176535B2

公开(公告)日：2024-12-24

申请号：US18210427

申请日：2023-06-15

Applicant: LG Energy Solution, Ltd.

Inventor： So Ra Baek ,  Min Suk Kang ,  Sang Wook Lee ,  Wang Mo Jung ,  Dong Hun Lee ,  Hye Lim Jeon ,  Eun Sol Lho

IPC: H01M4/525 ,  C01B35/12 ,  C01G53/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/36 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525

Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), and a glassy coating layer formed on surfaces of particles of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the glassy coating layer includes a glassy compound represented by Formula 1. LiaM1bOc  [Formula 1] wherein, M1 is at least one selected from the group consisting of boron (B), aluminum (Al), silicon (Si), titanium (Ti), and phosphorus (P), and 1≤a≤4, 1≤b≤8, and 1≤c≤20.

公开(公告)号：US20250046814A1

公开(公告)日：2025-02-06

申请号：US18926592

申请日：2024-10-25

Applicant: LG Energy Solution, Ltd.

Inventor： So Ra Baek ,  Min Suk Kang ,  Sang Wook Lee ,  Wang Mo Jung ,  Dong Hun Lee ,  Hye Lim Jeon ,  Eun Sol Lho

IPC: H01M4/525 ,  C01B35/12 ,  C01G53/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1315 ,  H01M4/1391 ,  H01M4/13915 ,  H01M4/36 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525

Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide comprising nickel (Ni), cobalt (Co), and manganese (Mn), and a coating layer formed on surfaces of the lithium composite transition metal oxide, wherein, in the lithium composite transition metal oxide, an amount of the nickel (Ni) in a total amount of transition metals is 60 mol % or more, and an amount of the manganese (Mn) is greater than an amount of the cobalt (Co), and the coating layer comprises a compound represented by Formula 1: LiaM1bOc   [Formula 1] wherein, M1 includes aluminum (Al) and at least one selected from the group consisting of boron (B), silicon (Si), titanium (Ti), and phosphorus (P), and 1≤a≤4, 1≤b≤8, and 1≤c≤20.