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Electrochemical intercalation of Ca2+ ions into TiS2 in organic electrolytes at room temperatureopen access
- Authors
- Lee, Changhee; Jeong, Yun-Taek; Nogales, Paul Maldonado; Song, Hee-Youb; Kim, YangSoo; Yin, Ri-Zhu; Jeong, Soon-Ki
- Issue Date
- Jan-2019
- Publisher
- Elsevier BV
- Keywords
- Calcium-ion batteries; TiS2 electrode; Organic electrolyte; In situ X-ray diffraction analysis
- Citation
- Electrochemistry Communications, v.98, pp 115 - 118
- Pages
- 4
- Journal Title
- Electrochemistry Communications
- Volume
- 98
- Start Page
- 115
- End Page
- 118
- ISSN
- 1388-2481
1873-1902
- Abstract
- This work investigates the electrochemical intercalation of Ca2+ ions into TiS2 in organic electrolytes at room temperature and demonstrates that successful intercalation/de-intercalation can be achieved using a 0.1 M solution of Ca(CF3SO3)(2) in propylene carbonate (PC) as an electrolyte. Additionally, further performance (charge/ discharge capacity, reversibility, and hysteresis) enhancement is observed when a 0.1 M solution of Ca(CF3SO3)(2) in a 1:10 (mol/mol) mixture of PC and dimethyl carbonate (DMC) is employed, which is ascribed to the modulation of the solvation environment of Ca2+ ions by the use of the relatively low-polar DMC. Finally, the structural changes in TiS2 caused by Ca2+ intercalation/de-intercalation during charge/discharge are probed by in situ X-ray diffraction analysis.
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Collections - SCH Media Labs > Department of Energy Systems Engineering > 1. Journal Articles
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Related Researcher
- Jeong, Soon Ki
- SCH Media Labs (에너지공학과)