Flake-shaped MoSe2 composited with biomass-derived hollow carbon sphere used as anode materials for lithium-ion batteries

• Published in: Ionics Vol. 29; no. 11; pp. 4593 - 4602
• Main Authors: Yu, Kaifeng, Yuan, Yongzhi, Zhao, Qianqian, Wang, Xiaofeng, Yue, Liufei, Li, Yi
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2023; Springer Nature B.V
• Subjects: Agglomerated defects; Anodes; Chemistry; Chemistry and Materials Science; Composite materials; Condensed Matter Physics; Electrical resistivity; Electrochemistry; Electrode materials; Energy Storage; Flakes (defects); Lithium-ion batteries; Molybdenum compounds; Optical and Electronic Materials; Reaction kinetics; Rechargeable batteries; Renewable and Green Energy; Transition metals; Lithium-ion battery; Biomass; Anode; Nano-hollow carbon
• ISSN: 0947-7047; 1862-0760
• DOI: 10.1007/s11581-023-05199-1

  Transition metal disulfides (TMDs) are considered as a potential anode material for lithium because of their unique layered structure and high theoretical specific capacity. However, due to their inherent defects, such as poor conductivity, easy agglomeration, slow reaction kinetics, and large volume change during charge and discharge, their practical application is greatly limited. Based on this, a feasible strategy is designed in this experiment. By solvothermal method, MoSe 2 nanosheets are coated on the surface of sunflower shell nano-hollow carbon balls to prepare C/MoSe 2 composite materials. As the frame material, C materials enhanced the electrical conductivity of MoSe 2 and avoided volume collapse and agglomeration problems. At 0.2/5 C current density, the capacity of C/MoSe 2 as a LIBs negative electrode finally stabilized at 1662.5/470.1 mAh·g −1 after 150/5500 cycles.