Hierarchical assembly and superior lithium/sodium storage properties of a flowerlike C/SnS@C nanocomposite. (10th February 2019)

• Record Type: Journal Article
• Authors: Zhang, Yaohui; Wang, Nana; Lu, Zhenxiao; Xue, Pan; Liu, Yuanlin; Zhai, Yanjun; Tang, Bin; Guo, Meiqing; Qin, Lin; Bai, Zhongchao
• Is Part Of: Electrochimica acta. Volume 296(2019)
• Page Start: 891
• Page End: 900
• Publication Date: 2019-02-10
• Subjects: Flowerlike -- C/SnS@C nanocomposite -- Anode -- S, N co-doping -- Lithium/sodium storage; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2018.11.102
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: A flowerlike C/SnS@C nanocomposite assembled from SnS@C nanoflakes vertically anchored on carbon nanoparticles is constructed by one facile hydrothermal method combined with an annealing process. Electrochemical results indicates that the sample displays remarkable lithium/sodium storage properties owing to the synergetic effect of the existence of carbon matrix and the void space between the SnS nanoflakes, which improve the electro-conductivity and alleviate volume fluctuations during the cycling process. Furthermore, S, N co-doped carbon shells can provide more active sites, which can improve Li + /Na + adsorption. As anode materials for lithium/sodium ion batteries (LIBs/SIBs), the sample demonstrates splendid capacities of 740 mA h g −1 at 1 A g −1 after 1000 cycles in LIBs and 485 mA h g −1 at 500 mA g −1 after 400 cycles in SIBs, respectively. Graphical abstract: Image 1