Three-dimensional hierarchically structured aerogels constructed with layered MoS₂/graphene nanosheets as free-standing anodes for high-performance lithium ion batteries

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• 作者：Jiarui He^a ; Pingjian Li^a ; ^{lipingjian@uestc.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Weiqiang Lv^b ; Kechun Wen^b ; Yuanfu Chen^a ; Wanli Zhang^a ; Yanrong Li^a ; Wu Qin^c ; Weidong He^b ; ^d ; ^{weidong.he@uestc.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：MoS2 ; Graphene ; Aerogel ; Lithium ion battery
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：10 October 2016
• 年：2016
• 卷：215
• 期：Complete
• 页码：12-18
• 全文大小：1872 K

文摘

In this report, three-dimensional hierarchically structured aerogels constructed with ultrathin layered MoS₂/graphene nanosheets (3DMG) synthesized with a facile one-pot hydrothermal method, are employed as anodes for lithium-ion batteries (LIBs) without conductive additives, polymer binders or metal current-collectors. Due to the integration of three-dimensional porous structure and ultrathin layered MoS₂/graphene, the 3DMG aerogel anode exhibits a high reversible capacity and an excellent high-rate capability. In addition, the 3DMG aerogels anode maintains a capacity of ∼870 mAh g⁻¹ at 1 A g⁻¹ after 200 cycles, demonstrating superior long-cycle performances of 3DMG aerogels at a high current density. The reported 3DMG aerogels have promising application potentials in highly-efficient lightweight LIBs.