公开(公告)号：US20210347787A1

公开(公告)日：2021-11-11

申请号：US17121347

申请日：2020-12-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Minah LEE ,  Jihyun HONG ,  Kyung Yoon CHUNG ,  Jin-Yoo SUH ,  Sang Ok KIM ,  Hyungseok KIM ,  Inyeong KANG ,  Ju Young JANG ,  Jin Kwan CHOI

IPC: C07F1/02 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/36

Abstract: The present disclosure relates to a prelithiation solution and a method for preparing a prelithiated anode using the same. The prelithiation solution and the method for preparing a prelithiated anode using the same according to the present disclosure allow uniform intercalation of lithium ions throughout the anode chemically in a solution via a simple process of immersing the anode in a prelithiation solution having a sufficiently low redox potential as compared to an anode active material. A prelithiated anode prepared by this method has an ideal initial coulombic efficiency and a lithium secondary battery with a high energy density can be prepared based thereon. In addition, the prepared anode is advantageously applicable to large-scale production due to superior stability even in dry air.