Template-free synthesis of novel SnS2 array and its superior performances for lithium ion battery

Publication date: Available online 6 February 2018 Source:Journal of Solid State Chemistry Author(s): Anquan Zhu, Lulu Qiao, Pengfei Tan, Yongjin Ma, Yi Liu, Jun Pan A kind of novel three-dimensional SnS2 array was fabricated by an ethylenediamine (EDA) assisting low-temperature solvothermal method. It was observed that as-obtained SnS2 array was composed of numerous SnS2 nanosheets with the thickness of about 22nm. When used as lithium ion batteries (LIBs) anode, the SnS2 array displayed remarkable performances on rate and cycling performances, delivering the rates with reversible capacities of 763.3, 658.6, 593.6, 554.4 and 450.3 mAh g−1 at the current densities of 0.2, 0.5, 1, 2 and 5Ag−1, respectively. Moreover, the satisfactory cycling performance was also disclosed, remaining capacity of 547.8 mAh g−1 after 100th cycle at 0.2Ag−1, better than some reported pure SnS2 nanostructures. Based on the characterization and experimental results, the reasons of such superior electrochemical performances were determined and elaborated. It means that the SnS2 array possesses promising potential on the renewable energy field. Graphical abstract
Source: Journal of Solid State Chemistry - Category: Chemistry Source Type: research