Regularly Arranged Micropore Architecture Enables Efficient Lithium-Ion Transport in SiO_x/Artificial Graphite Composite Electrode.

ABSTRACT: To enhance the electrochemical performance of lithium-ion battery anodes with higher silicon content, it is essential to engineer their microstructure for better lithium-ion transport and mitigated volume change as well. Herein, we suggest an effective approach to control the micropore structure of silicon oxide (SiO_x)/artificial graphite (AG) composite electrodes using a perforated current collector. The electrode features a unique pore structure, where alternating high-porosity domains and low-porosity domains markedly reduce overall electrode resistance, leading to a 20% improvement in rate capability at a 5C-rate discharge condition. Using microstructure-resolved modeling and simulations, we demonstrate that the patterned micropore structure enhances lithium-ion transport, m

SUBMITTER: Lim J 

PROVIDER: S-EPMC12508359 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature