期刊
CHEMICAL PAPERS
卷 73, 期 10, 页码 2583-2589出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s11696-019-00812-y
关键词
Titanium disulfide; Activated carbon; Sodium ion; Supercapattery
资金
- Special fund of key technology research and development projects [20180201097GX, 20180201099GX, 20180201096GX]
- Jilin province science and technology department
- Key Subject Construction of Physical Chemistry of Northeast Normal University
- R&D Program of power batteries with low temperature and high energy, Science and Technology Bureau of Changchun [19SS013]
- National Key R&D Program of China [2016YFB0100500]
- Doctoral Research Initiation Fund Project of Jilin Engineering Normal University [BSKJ201823]
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 3V. 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 0.2Ag(-1).
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