Fast sodiation/desodiation reactions of electrochemically delithiated olivine LiFePO₄ in aerated aqueous NaNO₃ solution
By Vujković, Milica & Mentus, Slavko
Published in Journal of Power Sources
NULL
2014
Abstract
By potentiodynamic polarization in saturated aqueous NaNO₃ solution, the composite LiFePO₄ /C was transformed completely to LiFePO₄ /C composite. The voltammograms of sodiated olivine were successfully recorded at the rate for two order of magnitude higher than reported for the same material in organic electrolyte. A high storage capacity amounting to 118 mAh g⁻¹ at a scan rate of 10 mV s⁻¹ was measured. The diffusion coefficients have been calculated via cyclic voltammetry and faster diffusion of sodium in comparison to lithium was found. This finding was confirmed also with the impedance measurements. The presence of dissolved oxygen in the electrolyte did not disturb the electrochemical behaviour of this composite material.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.