公开(公告)号：US20220029145A1

公开(公告)日：2022-01-27

申请号：US17311914

申请日：2019-12-06

Applicant: LG Energy Solution, Ltd.

Inventor： Sung Bin Park ,  Dong Hun Lee ,  Hyung Man Cho ,  Jung Min Han ,  Jin Tae Hwang ,  Wang Mo Jung

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  C23C16/40

Abstract: The present disclosure provides a method for manufacturing a positive electrode for a secondary battery, the method including forming a positive electrode mixture layer including a positive electrode active material on a positive electrode current collector, and forming a metal oxide coating layer on the positive electrode mixture layer by atomic layer deposition, wherein the positive electrode active material includes lithium composite transition metal oxide particles and a boron-containing coating layer formed on the lithium composite transition metal oxide particles, and the lithium composite transition metal oxide particles include nickel (Ni), cobalt (Co), and manganese (Mn), wherein the nickel (Ni) is 60 mol % or greater of all metals excluding lithium.

公开(公告)号：US20220020983A1

公开(公告)日：2022-01-20

申请号：US17294923

申请日：2019-11-28

Applicant: LG Energy Solution, Ltd.

Inventor： Eun Sol Lho ,  Wang Mo Jung ,  Min Suk Kang ,  Sang Wook Lee ,  So Ra Baek ,  Wen Xiu Wang

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  C01G53/00

Abstract: The present disclosure relates to a positive electrode active material for a secondary battery, the positive electrode active material being a lithium composite transition metal oxide particle including nickel (Ni) and cobalt (Co) and including at least one of manganese (Mn) and aluminum (Al), wherein the lithium composite transition metal oxide particle includes 60 mol % or greater of the nickel (Ni) in all metals excluding lithium, a doping element is doped on the lithium composite transition metal oxide particle, and the particle intensity of the lithium composite transition metal oxide particle is 210 MPa to 290 MPa.