Designing bi-layer electrode-electrolyte interfaces with an asymmetric ether to enable wide-temperature lithium metal batteries.

ABSTRACT: Lithium metal batteries (LMBs) are promising next-generation energy storage solutions, but face challenges in achieving stable performance across wide temperature ranges. While sulfurized polyacrylonitrile (SPAN) offers advantages over traditional sulfur positive electrodes, its compatibility with ether electrolytes remains problematic. This work introduces a temperature-resistant, anion-rich solvation structure using an asymmetric ether solvent, ethyl butyl ether, to enable Li | |SPAN batteries with a wide operational range of 100 °C ( - 40 to 60 °C). The tailored electrolyte fosters a bi-layer interphase on Li negative electrode, which is more effective than the conventional mosaic interphase in suppressing dendrite growth and electrochemically inactive Li accumulation. Concurrently, it

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12690081 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature