公开(公告)号：US20220131181A1

公开(公告)日：2022-04-28

申请号：US17398592

申请日：2021-08-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dong Ok SHIN ,  Young-Gi LEE ,  Myeong Ju LEE ,  Seok Hun KANG ,  Kwang Man KIM ,  Jumi KIM ,  Ju Young KIM ,  Jimin OH

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/052 ,  H01M10/44

Abstract: Provided is a method for manufacturing a solid secondary battery, wherein the method includes forming a composite electrolyte film, and forming a positive electrode and a negative electrode respectively on both surfaces of the composite electrolyte film. The forming of a composite electrolyte film includes preparing inorganic ion conductor powder coated with an ion resistance layer, removing the ion resistance layer to expose the surface of the inorganic ion conductor powder, mixing the inorganic ion conductor powder with an organic ion conductor and a solvent to prepare a composite electrolyte solution, and removing the solvent from the composite electrolyte solution.