Over-oxidized Mo3Se4 enriched with selenium: an anode for high performance Li-ion batteries

Abstract

One-step hydrothermally synthesized over-oxidized Mo₃Se₄ with enriched selenium exhibited a specific capacity of 1006.75 mA h g⁻¹ at 0.1C. It retained 71% of the initial value during the rate performance test. This novel electrode demonstrated a large specific capacity of 897.62 mA h g⁻¹ at 0.4C at the end of 332 cycles. The exceptional results for mixed phase Mo₃Se₄ suggest its structural and chemical stability.