公开(公告)号：US20240372089A1

公开(公告)日：2024-11-07

申请号：US18773371

申请日：2024-07-15

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Mihwa YANG ,  Moonju CHO ,  Minjae KIM ,  Beomkwon KIM

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/505 ,  H01M10/0525

Abstract: A lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolyte located therebetween. The positive electrode active material includes a lithium cobalt-based active material and a lithium nickel cobalt-based active material, wherein the lithium cobalt-based active material is larger in size and amount than the lithium nickel cobalt-based active material, and the lithium nickel cobalt-based active material is a one-body positive electrode active material.

公开(公告)号：US20210305561A1

公开(公告)日：2021-09-30

申请号：US17211650

申请日：2021-03-24

Applicant: Samsung SDI Co., Ltd.

Inventor： Mihwa YANG ,  Moonju CHO ,  Minjae KIM ,  Beomkwon KIM

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

Abstract: A lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolyte located therebetween. The positive electrode active material includes a lithium cobalt-based active material and a lithium nickel cobalt-based active material, wherein the lithium cobalt-based active material is larger in size and amount than the lithium nickel cobalt-based active material, and the lithium nickel cobalt-based active material is a one-body positive electrode active material.