An Ultrafast Charge-Driven Topological Intercalation Prelithiation Strategy for Carbon-Silicon Composite Anodes.

ABSTRACT: Prelithiation emerges as an effective technique to enhance the initial Coulombic efficiency (ICE) and cycling stability of silicon oxide based carbon composite (C/SiO_x) anodes, yet traditional approaches remain plagued by sluggish kinetics, cumbersome procedures, safety hazards, and inadequate precision. Here, a facile topological intercalation prelithiation method capable of forming a robust and homogeneous solid electrolyte interface (SEI) network on porous C/SiO_x nanofiber anodes in merely 30 s is reported. Through constructing three charge-driven topology models derived from flexible SiO_x/porous carbon nanofiber (SiO_x/PCNF) films, the mechanism of this fast Li⁺-intercalation process is unraveled. Abundant surface defects on SiO

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC12407273 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature