Construction of 3D flower-like MoS₂ spheres with nanosheets as anode materials for high-performance lithium ion batteries

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• 作者：Ting Yang ; Yuejiao Chen ; Baihua Qu ; Lin Mei ; Danni Lei ; Haonan Zhang ; Qiuhong Li ; Taihong Wang
• 关键词：MoS2 ; 3D flower-like ; Nanosheets ; Alcohol-assisted ; Lithium ion battery
• 刊名：Electrochimica Acta
• 出版年：1 January, 2014
• 年：2014
• 卷：115
• 期：Complete
• 页码：165-169
• 全文大小：2430 K

文摘

In this work, we constructed 3D flower-like MoS₂ spheres with nanosheets (less than 10 nm) by a simple alcohol-assisted solvothermal route. It was found that the presence of alcohol enhanced the dispersity of MoS₂ samples, and the distilled water facilitated the formation of nanosheets through varying the volume ratio of alcohol and distilled water. The prepared MoS₂ samples delivered high initial discharge capacity (1346 mA h g^鈭? at a current density of 100 mA g^鈭?), good coulombic efficiency (77.49% retention for the first cycle and 鈭?00% for the subsequent cycles), excellent cycling performance (947 mA h g^鈭? at 100 mA g^鈭? after 50 cycles) and remarkable rate behavior as anode materials for lithium ion batteries. The superior behavior of MoS₂ samples for lithium ion batteries can be ascribed to the thin nanosheets, high specific surface area and their unique layered structure.