Hierarchical Porous Structured Si/C Anode Material for Lithium‐Ion Batteries by Dual Encapsulating Layers for Enhanced Lithium‐Ion and Electron Transports Rates

Silicon (Si) is a promising anode material for next-generation lithium-ion batteries (LIBs) due to its high specific capacity and abundance. However, challenges such as significant volume expansion during cycling and poor electrical conductivity hinder its large-scale application. In this study, the multifunction of sodium polyacrylate (PAAS) utilized to develop a hierarchical porous silicon-carbon anode (Si/SiO