TiS2as negative electrode material for sodium-ion supercapattery
- Resource Type
- Article
- Authors
- Zhao, Li-Ping; Liu, Gang; Zhang, Peng; Sun, Li-Qun; Cong, Li-Na; Lu, Wei; Sun, Qi-Qi; Xie, Hai-Ming; Wang, Hong-Yu
- Source
- Chemical Papers; October 2019, Vol. 73 Issue: 10 p2583-2589, 7p
- Subject
- Language
- ISSN
- 25857290; 13369075
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.