Beam damage in operando X-ray diffraction studies of Li-ion batteries

This study investigates the extent of X-ray beam damage during operando PXRD synchrotron experiments on battery materials with varying X-ray energies, amount of X-ray exposure and battery cell chemistries. Battery cells were exposed to 15, 25 or 35   keV X-rays (with varying dose) during charge or discharge in a battery test cell specially designed for operando experiments. The observed beam damage was probed by µ PXRD mapping of the electrodes recovered from the operando battery cell after charge/discharge. The investigation reveals that the beam damage depends strongly on both the X-ray energy and the amount of exposure, and that it also depends strongly on the cell chemistry, i.e. the chemical composition of the electrode.

Source: Journal of Synchrotron Radiation - March 23, 2023 Category: Physics Authors: Christensen, C.K. Karlsen, M.A. Drejer, A. Ø . Andersen, B.P. Jakobsen, C.L. Johansen, M. S ø rensen, D.R. Kantor, I. J ø rgensen, M.R.V. Ravnsb æ k, D.B. Tags: batteries operando studies beam damage powder diffraction research papers Source Type: research