公开(公告)号：US20230261323A1

公开(公告)日：2023-08-17

申请号：US17900786

申请日：2022-08-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： YOUNG SAM PARK ,  Ju Young Kim ,  Jinyoung Kim ,  Seok Hun Kang ,  Young-Gi Lee ,  Dong Ok Shin ,  Seokyoon Yoon ,  Jaecheol Choi

IPC: H01M50/457 ,  H01M50/417 ,  H01M50/434 ,  H01M50/403 ,  H01M50/489

CPC classification number: H01M50/457 ,  H01M50/417 ,  H01M50/434 ,  H01M50/403 ,  H01M50/489

Abstract: Provided is a secondary battery including: a first electrode structure; a second electrode structure spaced apart from the first electrode structure; a separator between the first electrode structure and the second electrode structure; and an electrolyte filled between the first electrode structure and the separator and between the second electrode structure and the separator, wherein the separator includes: a separator substrate; a polymer layer adsorbed on a surface of the separator substrate; and a ceramic layer on the polymer layer, the polymer layer including a polyethyloxazoline-based polymer, and the ceramic layer including an aqueous binder.