Bridging silicon materials and electrode engineering for high energy density lithium ion battery anodes

Silicon anodes are among the most promising candidates for next-generation lithium-ion batteries because of their exceptionally high theoretical capacity, but their practical implementation remains constrained by severe volume expansion, unstable interfacial chemistry, low initial Coulombic efficiency, and limited scalability. In this Perspective, we highlight that these challenges cannot be resolved through active-material design alone, but require an integrated co-design strategy that connects