Oxygen Transport Properties of Organic Electrolytes and Performance of Lithium/Oxygen Battery
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 150 (10), A1351-A1356
- https://doi.org/10.1149/1.1606454
Abstract
The oxygen transport properties of several organic electrolytes were characterized through measurements of oxygen solubility and electrolyte viscosity. Oxygen diffusion coefficients were calculated from electrolyte viscosities using the Stokes-Einstein relation. Oxygen solubility, electrolyte viscosity, and oxygen partial pressure were all directly correlated to discharge capacity and rate capability. Substantial improvement in cell performance was achieved through electrolyte optimization and increased oxygen partial pressure. The concentration of oxygen in the electrode under discharge was calculated using a semi-infinite medium model with simultaneous diffusion and reaction. The model was used to explain the dependence of cell performance on oxygen transport in organic electrolyte. © 2003 The Electrochemical Society. All rights reserved.Keywords
This publication has 6 references indexed in Scilit:
- Characterization of the Lithium/Oxygen Organic Electrolyte BatteryJournal of the Electrochemical Society, 2002
- Noncontact and Noninvasive Monitoring of Gas Diffusion from Aqueous Solution to Aprotic Solvent Using the Optical Beam Deflection MethodThe Journal of Physical Chemistry B, 1997
- A Polymer Electrolyte‐Based Rechargeable Lithium/Oxygen BatteryJournal of the Electrochemical Society, 1996
- Temperature and composition dependence of viscosity I. Propylene carbonate-dimethoxyethane mixtures and thermodynamics of fluid flowJournal of Solution Chemistry, 1995
- Corrosion of Lithium in Alkaline SolutionJournal of the Electrochemical Society, 1977
- Solubility of oxygen in selected organic solventsJournal of Chemical & Engineering Data, 1972