Abstract
Molybdenum disulfide (MoS2) can as a aussichtsreich electrode for sodium-ion batteries (SIBs) considering multi-electron redox processes, which can meet the requirements of high discharge capacity and superb rate performance. However, Molybdenum disulfide tends to agglomerate during the preparation process, resulting in low mass energy density. In this paper, hollow rod shape MoS2@C composite is prepared by using hydrothermal method. The remarkable structure increases specific surface area and facilitates ion migration rate. The alternating superposition of MoS2 and carbon layer expand the material layer spacing, and maintain the structure stability sue to the van der Waal’s force interaction in multilayer film. As expected, the MoS2@C shows significant electrochemical performance the first lap specific capacity can reach 1003.5 mAh/g, and Coulomb efficiency (CE) reaches 66.2%. The specific capacity is 401.2 mAh/g at 100th cycle, and the CE achieves 100%. This work demonstrates the feasibility of this synthesis strategy in preventing structural degradation of template materials.
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