Atypical Hydrogen Bond Interaction Enables Anion-Rich Solvation Structure in Polymer Electrolytes for High-Voltage Flexible Lithium Metal Batteries.

ABSTRACT: Flexible lithium metal batteries (LMBs) using polymer-based solid-state electrolytes (PSSEs) are highly desirable for wearable applications because of the potential advantages in energy density and safety. Recently, ether-based polyelectrolytes have received extensive attention because of their good stability, high ionic conductivity, and Li metal anode compatibility. However, it typically forms organic-rich cathode electrolyte interphase (CEI) at the cathode, which is still a pain point that impedes the high-voltage performance. To address this challenge, herein a fluorinated plasticizer, bis(2-fluoroethyl) ether (BFE) is reported, which can be easily blended into ether-based PSSE and enables high-voltage-stable flexible LMBs. The BFE and PSSE molecules form an atypical hydrogen bond inte

SUBMITTER: Wen S 

PROVIDER: S-EPMC12442591 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature