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Intercalation Pseudocapacitance of Exfoliated Molybdenum Disulfide for Ultrafast Energy Storage

Journal Article · · ChemNanoMat
 [1];  [1];  [1];  [2];  [3];  [4]
  1. University of Houston, TX (United States). Department of Electrical & Computer Engineering and Materials Science and Engineering Program
  2. Morgan State University, Baltimore, MD (United States). Department of Physics and Engineering Physics
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Sustainable Energy Technologies Department
  4. 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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Cited By (8)

Materials Data on MoS2 by Materials Project dataset January 2020
Advanced Energy Storage Devices: Basic Principles, Analytical Methods, and Rational Materials Design journal November 2017
Interlayer Nanoarchitectonics of Two-Dimensional Transition-Metal Dichalcogenides Nanosheets for Energy Storage and Conversion Applications journal June 2017
Emergent Pseudocapacitance of 2D Nanomaterials journal February 2018
An Investigation into the Charge‐Storage Mechanism of MnO@Graphite as Anode for Lithium‐Ion Batteries at Low Temperature journal April 2019
Hybrid Charge‐Storage Route to Nb 2 CT x MXene as Anode for Sodium‐Ion Batteries journal January 2020
A Pseudolayered MoS 2 as Li-Ion Intercalation Host with Enhanced Rate Capability and Durability journal October 2018
Electrochemical performance of interspace-expanded molybdenum disulfide few-layer journal July 2018

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