Intercalation Pseudocapacitance of Exfoliated Molybdenum Disulfide for Ultrafast Energy Storage
- University of Houston, TX (United States). Department of Electrical & Computer Engineering and Materials Science and Engineering Program
- Morgan State University, Baltimore, MD (United States). Department of Physics and Engineering Physics
- Brookhaven National Lab. (BNL), Upton, NY (United States). Sustainable Energy Technologies Department
- University of Houston, TX (United States). Department of Electrical & Computer Engineering and Materials Science and Engineering Program and Texas Centre for Superconductivity
In this study, we report intercalation pseudocapacitance of 250 F g-1 for exfoliated molybdenum disulfide (MoS2) in non-aqueous electrolytes that contain lithium ions. The exfoliated MoS2 shows surface-limited reaction kinetics with high rate capability up to 3 min of charge or discharge. The intercalation pseudocapacitance originates from the extremely fast kinetics due to the enhanced ionic and electronic transport enabled by the slightly expanded layer structure as well as the metallic 1T-phase. The exfoliated MoS2 could be also used in a Li-Mg-ion hybrid capacitor, which shows full cell specific capacitance of 240 F g-1.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- OSTI ID:
- 1347281
- Report Number(s):
- BNL--112700-2016-JA
- Journal Information:
- ChemNanoMat, Journal Name: ChemNanoMat Journal Issue: 7 Vol. 2; ISSN 2199-692X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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