公开(公告)号：US20240380005A1

公开(公告)日：2024-11-14

申请号：US18597194

申请日：2024-03-06

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： FENG LIANG ,  DONGRONG YANG ,  DA ZHANG ,  BAOQIANG XU ,  BIN YANG

IPC: H01M10/0565 ,  H01M10/054 ,  H01M50/403 ,  H01M50/414 ,  H01M50/451

Abstract: An asymmetric sodium-based solid-state composite electrolyte includes a first solid-state composite electrolyte layer and a second composite electrolyte layer obtained by laminated coating method. Both the two solid-state composite electrolyte layers include a polymer matrix, an inorganic filler, a sodium salt and a plasticizer, the difference is the electron conductive agent added with the mass ratio ranges from 1 wt. %˜10 wt. % into the second solid-state composite electrolyte layer. In a battery assembled with the asymmetric sodium-based solid-state composite electrolyte, the first solid-state composite electrolyte layer is contiguous with a positive electrode, and the second solid-state composite electrolyte layer is disposed between the first solid-state composite electrolyte layer and a negative electrode.