Fabrication of NiO–carbon nanotube/sulfur composites for lithium-sulfur battery application |
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| Authors: | Xiaobo Jia Baosheng Liu Jinghua Liu Shaohui Zhang Zijun Sun Xiong He Hongda Li Guofu Wang Haixin Chang |
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| Affiliation: | Center for Materials Science and Engineering, School of Electrical and Information Engineering, Guangxi University of Science and Technology, Liuzhou 545006 China.; Quantum-Nano Matter and Device Lab, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 China |
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| Abstract: | The practical applications of lithium–sulfur batteries are still a great challenge due to the polysulfide shuttle and capacity decay. Herein, we report a NiO–carbon nanotube/sulfur (NiO–CNT/S) composite by hydrothermal and thermal treatments. This hybrid combines the high conductivity of CNTs and double adsorption of CNTs and NiO (physical and chemical adsorption) to improve the electrochemical performance for the sulfur electrodes. Compared with CNT/S and NiO/S, the developed NiO–CNT/S composites present a preferable initial reversible discharge capacity (1072 mA h g−1) and is maintained at 609 mA h g−1 after 160 cycles at 0.1C.The NiO–CNT/S composites combine the high conductivity of CNT and double adsorption of CNT and NiO (physical adsorption and chemical adsorption) to enhance electrochemical performance for sulfur electrode materials. |
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