公开(公告)号：US20210013493A1

公开(公告)日：2021-01-14

申请号：US16925579

申请日：2020-07-10

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yungu CHO ,  Doori OH ,  Heeyoung CHU ,  Hyun SOH ,  Yoonyoung CHOI ,  Yubin HWANG

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/134 ,  H01M4/133 ,  H01M10/0525

Abstract: A composite anode active material, an anode, and a lithium secondary battery, the composite anode active material including a silicon-carbon composite; a first graphite; and a second graphite that is different from the first graphite, wherein the first graphite has an average particle diameter D50 of about 10 μm or greater, and the second graphite has an average particle diameter D50 of about 18 μm or greater.