Electrochemical Properties of Tin Sulfide Nano-Sheets as Cathode Material for Lithium-Sulfur Batteries

Muhammad Saleem; Gohar Mehboob; M Shafiq Ahmed; Said Nasir Khisro; M Z Ansar; Kashif Mehmood; Rafiqa-Tul-Rasool; M K Alamgir; Ahsan Ejaz; M Ghazanfar; Shahnwaz Hussain; Adil Ahmed; J M Ashfaq

doi:10.3389/fchem.2020.00254

Electrochemical Properties of Tin Sulfide Nano-Sheets as Cathode Material for Lithium-Sulfur Batteries

Front Chem. 2020 Apr 28:8:254. doi: 10.3389/fchem.2020.00254. eCollection 2020.

Authors

Muhammad Saleem^{1

2}, Gohar Mehboob³, M Shafiq Ahmed³, Said Nasir Khisro³, M Z Ansar⁴, Kashif Mehmood⁴, Rafiqa-Tul-Rasool⁴, M K Alamgir⁴, Ahsan Ejaz⁵, M Ghazanfar⁶, Shahnwaz Hussain⁶, Adil Ahmed⁷, J M Ashfaq³

Affiliations

¹ Institute for Advanced Study, Shenzhen University, Shenzhen, China.
² Department of Optoelectronic Science and Technology, Shenzhen University, Shenzhen, China.
³ Department of Physics, University of Kotli Azad Jammu and Kashmir, Kotli, Pakistan.
⁴ National Institute of Vacuum Science and Technology, National Centre for Physics, Islamabad, Pakistan.
⁵ Civil Engineering Department, Mirpur University of Science and Technology, Mirpur Azad Jammu and Kashmir, Mirpur, Pakistan.
⁶ State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, China.
⁷ School of Material Science and Engineering, Northwestern Polytechnical University, Shaanxi, China.

Abstract

Unprecedented self-assembled hierarchical nano-sheets of SnS were synthesized by the hydrothermal method. In a typical reaction, SnCl₂.2H₂O and Na₂S.9H₂O were used as reactants. Structural and morphological properties were studied by X-ray diffraction (XRD), and scanning electron microscopy (SEM) while the electrochemical properties were measured by cyclic voltammetry, charge-discharge cycles, and electrochemical impedance spectroscopy (EIS). SEM results showed the 1-D SnS nano-sheets with an average thickness of around 20 nm. Cyclic voltammogram and charge-discharge spectra showed good cycling stability. All these results showed that SnS nano-sheets are promising candidate material to be used as electrode for Li-S batteries.

Keywords: cathode material; cyclic voltammetry; electrochemical impedance spectroscopy (EIS); hydrothermal; nano-sheets; tin sulfide.