三维花状MoS2锌离子电池正极材料的设计构筑及其储能机制研究

采用水热法设计构筑三维花状二硫化钼,并利用XRD、SEM、RAMAN、TG等测试方法对产物的结构和形貌进行了表征,进而作为正极材料组装成锌离子电池并对其进行电化学测试分析,在充放电电压区间为0.2~1.2V、电流密度为1.0A/g条件下,首次放电比容量可达63.9 mAh/g,100次循环后其放电比容量保持在53.6mAh/g,容量保持率为83.9%。较高的比容量和循环稳定性使MoS_2成为有前景的锌离子电池正极材料之一。

Three-dimensional Flower-like MoS2:Construction Design, Reaction Mechanism and Zn Ion Storage Performance Improvement

Three-dimensional (3D) flower-like MoS₂ was constructed through a simple hydrothermal method. The structure and morphology were characterized by XRD, SEM, RAMAN and TGA. Electrochemical performance was further tested by assembling the zinc ion batteries. The MoS₂ electrode delivers an initial discharge specific capacity of 63.9 mAh/g with the voltage range of 0.2-1.2 V and current density of 1.0 A/g. After 100 cycles, the discharge specific capacity achieves 53.6 mAh/g, corresponding to a capacity retention of 83.9%. High specific capacity and cyclic stability make MoS₂ become one of the promising cathode materials for zinc ion battery.