公开(公告)号：US20210119247A1

公开(公告)日：2021-04-22

申请号：US16807095

申请日：2020-03-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoungchul KIM ,  Byung Kook KIM ,  Hae-Weon LEE ,  Jong Ho LEE ,  Ji-Won SON ,  Kyung Joong YOON ,  Ho Il JI ,  Sangbaek PARK ,  Sungeun YANG ,  Ji-Su KIM ,  Sung Soo SHIN ,  Eu Deum JUNG

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M10/058

Abstract: Provided are a sulfide-based lithium-argyrodite ion superconductor containing multiple chalcogen elements and a method for preparing the same. More specifically, provided are a sulfide-based lithium-argyrodite ion superconductor containing multiple chalcogen elements and a method for preparing the same that are capable of significantly improving lithium ion conductivity by substituting a sulfur (S) element in a PS43- tetrahedron with a chalcogen element such as a selenium (Se) element, other than the sulfur (S) element, while maintaining an argyrodite-type crystal structure of a sulfide-based solid electrolyte represented by Li6PS5Cl.