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.

公开(公告)号：US11631878B2

公开(公告)日：2023-04-18

申请号：US17212261

申请日：2021-03-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: H01M8/1253 ,  H01M4/90 ,  H01M4/88 ,  H01M4/86 ,  H01M8/12

Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell including a multi-layered electrolyte layer using a calendering process. The method for manufacturing a solid oxide fuel cell is a continuous process, thus providing high productivity and maximizing facility investment and processing costs. In addition, the solid oxide fuel cell manufactured by the method includes an anode that is free of interfacial defects and has a uniform packing structure, thereby advantageously greatly improving the production yield and power density. In addition, the solid oxide fuel cell has excellent interfacial bonding strength between respective layers included therein, and includes a multi-layered electrolyte layer in which the secondary phase at the interface is suppressed and which has increased density, thereby advantageously providing excellent output characteristics and long-term stability even at an intermediate operating temperature.