Natural wood-derived free-standing films as efficient and stable separators for high-performance lithium ion batteries.

ABSTRACT: A sustainable and low-cost separator is highly required for electrochemical energy storage systems. Herein, a type of modified natural wood film with excellent mechanical properties, ion conductivity and thermal stability is fabricated for high-performance lithium ion batteries. Using the modified natural wood film as a separator, the fabricated symmetric cell exhibits a more stable and lower plating/stripping voltage for Li than that of the cell with a commercialized polypropylene (PP) separator. The LiFePO₄/Li half-cell with the modified wood film separator shows a small polarization voltage and high discharge capacity because of the multi-level nanostructure and abundant functional groups of the modified wood films. The results suggest that the modified wood films are a promi

SUBMITTER: Yang Y 

PROVIDER: S-EPMC9417349 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature