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Title: How Water Accelerates Bivalent Ion Diffusion at the Electrolyte/Electrode Interface

Journal Article · · Angewandte Chemie (International Edition)
ORCiD logo [1];  [2]; ORCiD logo [3];  [3];  [2];  [2];  [3];  [4]; ORCiD logo [2]
  1. Univ. of Maryland, College Park, MD (United States). Dept. of Chemical and Biomolecular Engineering; Army Research Lab., Adelphi, MD (United States). Electrochemistry Branch, Sensor and Electron Devices Directorate Power and Energy Division
  2. Univ. of Maryland, College Park, MD (United States). Dept. of Chemical and Biomolecular Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Division
  4. Army Research Lab., Adelphi, MD (United States). Electrochemistry Branch, Sensor and Electron Devices Directorate Power and Energy Division
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The effect of H2O in electrolytes and in electrode lattices on the thermodynamics and kinetics of reversible multivalent-ion intercalation chemistry based on a model platform of layered VOPO4 has been investigated. The presence of H2O at the electrolyte/electrode interface plays a key role in assisting Zn2+ diffusion from electrolyte to the surface, while H2O in the lattice structure alters the working potential. More importantly, a dynamic equilibrium between bulk electrode and electrolyte is eventually reached for H2O transport during the charge/discharge cycles, with the water activity serving as the key parameter determining the direction of water movement and the cycling stability.

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); USDOE Advanced Research Projects Agency - Energy (ARPA-E); National Science Foundation (NSF)
Grant/Contract Number:
SC0012704; AR0000389; W911NF-16-2-0202
OSTI ID:
1466598
Report Number(s):
BNL-207998-2018-JAAM
Journal Information:
Angewandte Chemie (International Edition), Vol. 57, Issue 37; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 99 works
Citation information provided by
Web of Science

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Cited By (8)

Highly Reversible and Rechargeable Safe Zn Batteries Based on a Triethyl Phosphate Electrolyte journal January 2019
Inhibiting VOPO 4 ⋅ x  H 2 O Decomposition and Dissolution in Rechargeable Aqueous Zinc Batteries to Promote Voltage and Capacity Stabilities journal November 2019
3D CNTs Networks Enable MnO 2 Cathodes with High Capacity and Superior Rate Capability for Flexible Rechargeable Zn–MnO 2 Batteries journal September 2019
Electrode Materials for Rechargeable Zinc-Ion and Zinc-Air Batteries: Current Status and Future Perspectives journal May 2019
Zinc anode-compatible in-situ solid electrolyte interphase via cation solvation modulation journal November 2019
Intercalation chemistry of graphite: alkali metal ions and beyond journal January 2019
On the unsuspected role of multivalent metal ions on the charge storage of a metal oxide electrode in mild aqueous electrolytes journal January 2019
Inhibiting VOPO 4 ⋅ x  H 2 O Decomposition and Dissolution in Rechargeable Aqueous Zinc Batteries to Promote Voltage and Capacity Stabilities journal September 2019

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Related Subjects

25 ENERGY STORAGE
batteries
electrochemistry
electrolytes
kinetics
water