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ISSN electronic edition: 1336-9075
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TiS2 as negative electrode material for sodium-ion supercapattery

Li-Ping Zhao, Gang Liu, Peng Zhang, Li-Qun Sun, Li-Na Cong, Wei Lu, Qi-Qi Sun, Hai-Ming Xie, and Hong-Yu Wang

Jilin Engineering Normal University, Changchun, People’s Republic of China

 

E-mail: xiehm136@nenu.edu.cn

Abstract: Titanium disulfide (TiS2) was adopted as a negative electrode material for the asymmetric sodium-ion supercapattery of TiS2/activated carbon using Na+-based organic electrolytes. This type of supercapattery possesses a working voltage as high as 3 V. The physical properties of the negative electrode were characterized by X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy. The electrochemical performance tests revealed that the supercapattery had a relatively high rate performance and good cycle stability, displaying 77% capacity retention after 1000 cycles at a current density of 0.2 A g−1.

Keywords: Titanium disulfide ; Activated carbon ; Sodium ion ; Supercapattery 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-019-00812-y

 

Chemical Papers 73 (10) 2583–2589 (2019)

Tuesday, July 14, 2020

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