Metal chalcogenides are considered as promising anode materials for lithium and sodium-ion batteries because of their large theoretical capacities. However, large volume expansion and low conductivity still limit their practical… Click to show full abstract
Metal chalcogenides are considered as promising anode materials for lithium and sodium-ion batteries because of their large theoretical capacities. However, large volume expansion and low conductivity still limit their practical applications. In this work, three-dimensional cube-like Sb2Se3/C assembled by ultrathin nanosheets is prepared by a facile solvothermal method and a carbonization process. The as-achieved cube-like Sb2Se3/C displays good electrochemical performance both in lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). When applied as anode for LIBs, a capacity of 440.9 mAh g−1 can be maintained after 100 cycles at the current density of 0.2 A g−1. When used as the anode for SIBs, it exhibits the discharge capacity of 433 mAh g−1 at the 100th cycle at 0.2 A g−1.
               
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