Tin Disulfide Nanoplates on Graphene Nanoribbons for Full Lithium Ion Batteries

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• 作者：Caitian Gao ; Lei Li ; Abdul-Rahman O. Raji ; Anton Kovalchuk ; Zhiwei Peng ; Huilong Fei ; Yongmin He ; Nam Dong Kim ; Qifeng Zhong ; Erqing Xie ; James M. Tour
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：December 9, 2015
• 年：2015
• 卷：7
• 期：48
• 页码：26549-26556
• 全文大小：576K
• ISSN：1944-8252

文摘

A nanocomposite material made of layered tin disulfide (SnS₂) nanoplates vertically grown on reduced graphene oxide nanoribbons (rGONRs) has been successfully developed as an anode in lithium ion batteries by a facile method. At a rate of 0.4 A/g, the material exhibits a high discharge capacity of 823 mAh/g even after 800 cycles. It shows excellent rate stability when the current density varies from 0.1 to 3.0 A/g with a Coulombic efficiency larger than 99%. In order to demonstrate the anode material for practical applications, SnS₂-rGONR/LiCoO₂ full cells were constructed. To the best of our knowledge, this is the first time that a full cell has been successfully developed using metal chalcogenides as an anode. The full cell delivers a high capacity of 642 mAh/g at 0.2 A/g, superior rate, and cycling stability after long-term cycling. Moreover, the full cell has a high output working voltage of 3.4 V. These excellent lithium storage performances in half and full cells can be mainly attributed to the synergistic effect between the highly conductive network of rGONRs and the high lithium-ion storage capability of layered SnS₂ nanoplates.