- By:
- Abouimrane, Ali ; Rahman, Muhammad Mominur ; Amin, Md Ruhul ; Polyzos, Georgios ; Damron, Joshua T; Belharouak, Ilias
- Journal Name:
- ACS Applied Energy Materials
- Page Number:
- 1-5
- Volume:
- 19
- Publication Date:
- September 22, 2026
- View DOI Listing:
- https://doi.org/10.1021/acsaem.6c01930
Abstract
A solid solvent in salt concept is applied to all-solid-state batteries (ASSBs) using a soft solid electrolyte (SE) composed of lithium bis(trifluoromethanesulfonyl)imide, succinonitrile, and ethylene carbonate with a weight ratio of 85/11/4. The developed SE exhibits an ionic conductivity of ∼10−4 S/cm at room temperature and an electrochemical stability window of approximately 5 V. Electrochemical performance was evaluated using lithium, graphite, and SiOX anodes paired with a LiFePO4 (LFP) cathode. The ASSBs, including LFP/SE/SiOX and LFP/SE/graphite configurations, demonstrates reversible cycling at room temperature without the application of external pressure, highlighting the potential of the soft SE for practical ASSB applications.
