Carbon coated chevrel phase of Mo6S8 as anode material for improving electrochemical properties of aqueous lithium-ion batteries

• DOI: 10.1016/j.electacta.2017.10.015
• Publication Date: 2017-10-11T12:32:00Z
• Authors: Haomiao Chu; Junli Pan; Shouli Bai; Yaqiang Ma; Yongjun Feng; Yuehua Wen; Yusheng Yang; Ruixian Luo; Aifan Chen
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

Abstract The carbon-coated chevrel phase of Mo6S8 as electrode material was fabricated for the first time. Compared with the bare Mo6S8 and 10%C-Mo6S8 anodes, the 5%C-Mo6S8 anode possesses excellent rate capability and cyclic performance at the cutoff voltage of 1.5 V using LiMn2O4 as the cathode, which delivers a reversible capacity of ∼ 85 mAh·g−1 and an average discharge voltage of as high as ∼ 2 V maintains 93% of initial discharge capacity even after 400 cycles at 1C and in 21 M aqueous electrolyte. This study provides a promising anode material for aqueous lithium-ion batteries because of its high capacity, stability and environmental inertness. Furthermore, the results demonstrate that this method could expand the synthesis and application of these unique compounds.