Rational design for enhanced mechanical and kinetic properties of SnSb-based yolk–shell heterostructure as long cycle-life, high-rate Na-ion battery anode

A long cycle-life, high-rate SnSb@C-SiOC nanohybrid anode for SIBs is designed. The multi-functional shell boosts electrochemical kinetics, and the heterostructure effectively suppresses huge volume change and structural degradation of SnSb.