TiS2 as negative electrode material for sodium-ion supercapattery

Titanium disulfide (TiS 2 ) was adopted as a negative electrode material for the asymmetric sodium-ion supercapattery of TiS 2 /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 ele...

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Veröffentlicht in:Chemical papers 2019-10, Vol.73 (10), p.2583-2589
Hauptverfasser: Zhao, Li-Ping, Liu, Gang, Zhang, Peng, Sun, Li-Qun, Cong, Li-Na, Lu, Wei, Sun, Qi-Qi, Xie, Hai-Ming, Wang, Hong-Yu
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Sprache:eng
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Zusammenfassung:Titanium disulfide (TiS 2 ) was adopted as a negative electrode material for the asymmetric sodium-ion supercapattery of TiS 2 /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 .
ISSN:2585-7290
0366-6352
1336-9075
DOI:10.1007/s11696-019-00812-y