Pore‐Stitching Engineering of Biomass‐Derived Hard Carbon for Enhanced Sodium‐Ion Storage
Biomass‐derived hard carbon (HC) is a promising and cost‐effective anode for sodium‐ion batteries (SIBs). Prior to carbonization, biomass precursors are commonly subjected to acid/alkali purification to remove metallic and non‐metallic impurities. However, the accompanying ionic etching process often generates abun...