Application of magnetron sputtering technique to fabricate sulfur/carbon composites cathode plates of lithium-sulfur battery

Prepare sulfur/carbon target and use magnetron sputtering to deposit sulfur and carbon atoms together onto the Al foil substrate to form sulfur/carbon composites. [Display omitted] •Magnetron sputtering to fabricate sulfur/carbon composite cathode for Li-S battery.•Improved electrochemical propertie...

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Veröffentlicht in:Materials letters 2020-08, Vol.273, p.127888, Article 127888
Hauptverfasser: Yan, Shijian, Yan, Xiaoyan, Tong, Yang, Zhang, Mingang, Liu, Jiansheng
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Sprache:eng
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Zusammenfassung:Prepare sulfur/carbon target and use magnetron sputtering to deposit sulfur and carbon atoms together onto the Al foil substrate to form sulfur/carbon composites. [Display omitted] •Magnetron sputtering to fabricate sulfur/carbon composite cathode for Li-S battery.•Improved electrochemical properties from small S particles and good layer porosity.•Battery productivity improved as binder and solvent are removed from processing. The magnetron sputtering technique is introduced to fabricate sulfur/carbon composite cathode plates for lithium-sulfur (Li-S) batteries by reducing the size of sulfur particles so they combine well with carbon particles without adding a binder to simplify the traditional technology. The bulk sulfur/carbon powder target is prepared to sputter sulfur and carbon atoms together onto Al foil to form a porous and reticular structure that overcomes the disadvantages of traditional technologies and improves the electrochemical properties of Li-S batteries. Li-S button cells are assembled using the developed cathode plates, and the electrochemical test results show that the 1st and 100th discharge specific capacities are 1240.8 and 926.2 mA·g−1, respectively, which are much greater than the performance of Li-S battery made using traditional technologies.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.127888