Achieving high-capacity and long-life K+ storage enabled by constructing yolk-shell Sb2S3@N, S-doped carbon nanorod anodes

A in situ transmission electron microscopy study of an anode consisting of yolk-shell structured Sb2S3 confined in N, S co-doped hollow carbon nanorod clearly demonstrates that the buffer space between the Sb2S3 core and N, S co-doped carbon shell can effectively accommodate the large expansion of active Sb2S3 during potassiation, thus ensuring the high-capacity and long-cycle stability.