Highly Graphitized Straw-Derived Carbon via Molten Salt Electrolysis for Potassium-Ion Batteries.

ABSTRACT: The conversion of straw biomass into highly graphitized carbon materials is achieved through an efficient molten salt electrolysis process at moderate temperatures (900-950 °C). Increasing the electrolysis temperature significantly enhances the degree of graphitization, structural ordering, and heteroatom removal efficiency, as evidenced by multiscale characterization and electrochemical simulations. The resulting graphitic material exhibits a highly ordered layered structure with improved crystallinity and a larger specific surface area. When used as a potassium-ion battery anode, this biomass-derived carbon delivers a reversible capacity of 232.9 mA·h·g^-1 after 100 cycles and retains 230.8 mA·h·g^-1 after 500 cycles, owing to its well-developed graphite framework, wh

SUBMITTER: Chang Y 

PROVIDER: S-EPMC12608522 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature