公开(公告)号：US11855286B2

公开(公告)日：2023-12-26

申请号：US17105943

申请日：2020-11-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sang Baek Park ,  Byung Kook Kim ,  Jong Ho Lee ,  Ji Won Son ,  Kyung Joong Yoon ,  Hyoung Chul Kim ,  Ho Il Ji ,  Sung Eun Yang ,  Seung Hwan Lee ,  Joo Sun Kim

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M10/0562 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/134

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0562

Abstract: Disclosed are a cathode for an all-solid-state battery including a cathode thin film for an all-solid-state battery or a cathode composite membrane for an all-solid-state battery, and an all-solid-state battery including the same. The cathode for an all-solid-state battery contains a grain that has a plane having a low surface energy and has a grain boundary arranged parallel to the electron movement direction, thus effectively lowering the interfacial resistance of the thin film while suppressing the dissolution and diffusion of the transition metal, thereby improving the cycle stability of the all-solid-state battery including the same.