An electrochemical cell with sapphire windows for operando synchrotron X-ray powder diffraction and spectroscopy studies of high-power and high-voltage electrodes for metal-ion batteries

Journal of Synchrotron Radiation
Oleg A DrozhzhinDmitry Chernyshov

Abstract

A new multi-purpose operando electrochemical cell was designed, constructed and tested on the Swiss-Norwegian Beamlines BM01 and BM31 at the European Synchrotron Radiation Facility. Single-crystal sapphire X-ray windows provide a good signal-to-noise ratio, excellent electrochemical contact because of the constant pressure between the electrodes, and perfect electrochemical stability at high potentials due to the inert and non-conductive nature of sapphire. Examination of the phase transformations in the Li1-xFe0.5Mn0.5PO4 positive electrode (cathode) material at C/2 and 10C charge and discharge rates, and a study of the valence state of the Ni cations in the Li1-xNi0.5Mn1.5O4 cathode material for Li-ion batteries, revealed the applicability of this novel cell design to diffraction and spectroscopic investigations of high-power/high-voltage electrodes for metal-ion batteries.

References

Aug 1, 2015·ChemSusChem·Neeraj SharmaVanessa K Peterson
Aug 13, 2015·The Journal of Physical Chemistry Letters·Olaf J BorkiewiczKarena W Chapman
May 4, 2016·Journal of Synchrotron Radiation·Vadim DyadkinDmitry Chernyshov

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Citations

Feb 24, 2018·Journal of the American Chemical Society·Ivan V TereshchenkoArtem M Abakumov
Nov 18, 2021·ACS Applied Materials & Interfaces·Oleg A DrozhzhinEvgeny V Antipov

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