期刊
NANOMATERIALS
卷 8, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/nano8030135
关键词
freeze drying; SnS; carbon nano-networks; lithium ion batteries; sodium ion batteries
类别
资金
- National Nature Science Foundations of China [51772257, 11704321]
- Doctor Foundation of Shandong Province [ZR2017BB081]
The three-dimensional (3D) SnS decorated carbon nano-networks (SnS@C) were synthesized via a facile two-step method of freeze-drying combined with post-heat treatment. The lithium and sodium storage performances of above composites acting as anode materials were investigated. As anode materials for lithium ion batteries, a high reversible capacity of 780 mAh.g(-1) for SnS@C composites can be obtained at 100 mA.g(-1) after 100 cycles. Even cycled at a high current density of 2 A.g(-1), the reversible capacity of this composite can be maintained at 610 mAh.g(-1) after 1000 cycles. The initial charge capacity for sodium ion batteries can reach 333 mAh.g(-1), and it retains a reversible capacity of 186 mAh.g(-1) at 100 mA.g(-1) after 100 cycles. The good lithium or sodium storage performances are likely attributed to the synergistic effects of the conductive carbon nano-networks and small SnS nanoparticles.
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