Stress-affected Chemical Reactions in the Vertices of Honeycomb-structured Silicon Anodes
This project models the stress-affected chemical reactions in honeycomb-structured silicon anodes for lithium-ion batteries. Inspired by stress relaxation mechanisms such as wall buckling in honeycomb structures, the research examines the coupling of mechanical stresses and chemical reaction rates using a finite element approach. The study introduces a novel hyperelastic model to predict post-buckling behavior and reveals that stress influences reaction kinetics, slowing the chemical reaction in certain conditions. This work highlights how structural geometry and material behavior can be optimized to enhance silicon anode lifespan and efficiency, addressing challenges in next-generation battery technologies.