Chalcogenides as Anode Material for All-Solid-State Li-Ion Batteries

Abstract

All-solid-state batteries (ASSBs) propose more attractive option than batteries with liquid electrolytes, due to their high energy and power densities with safer reaction potential. However, the battery community is still facing issues to commercialize ASSBs due to the shortage of suitable electrode and electrolyte materials for practical applications. According to the available reports, Bi & Sb-based chalcogenides materials have been considered as promising anode materials due to their unique properties like layered crystal structure, narrow bandgap, good thermal conductivity, and high specific and volumetric capacity. However, at the same time, Bi & Sb-based chalcogenide materials are known to suffer from poor ion diffusion rate, large volume change, and multiple phase transformations during charge/discharge cycles. Herein, the electrochemical performance of all-solid-state batteries using bulk and nanostructured Bi & Sb –based chalcogenides electrode materials, mainly controlled morphologies like nanoparticles, nanorods, nanosheets etc. are summarized. Perspectives for further improving chalcogenides anode materials and solid electrolytes are also discussed.