Molecular engineering of pore structure/interfacial functional groups toward hard carbon anode in sodium-ion batteries

• Hard carbon with abundant micropores and C = O is obtained by molecular design. • The micropores provides abundant storage sites to enhance plateau capacity. • The interface C = O induces the inorganic rich SEI to improve the cycling stability. • The HC O anode displays a high reversible capacity of 352.9 mAh g -1 and ICE of 88.0 %. Hard carbon with abundant pore structure and suitable interface has become a promising anode for sodium-ion batteries. However, it is still a challenge to accurately regulate the hard carbon micropore structure and customize the appropriate interface. Herein, different heteroatoms are introduced into the precursor to regulate the pore structure of hard carbon through its…

• NN
  National Natural Science Foundation of China

  Awards: 22478412, 22408389
• YI
  Youth Innovation Promotion Association of the Chinese Academy of Sciences

  Award: Y2023119