Establishing operando diffraction capability through the study of Li-ion (de) intercalation in LiFePO <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e101" altimg="si17.svg"> <mml:msub> <mml:mrow/> <mml:mrow> <mml:mn>4</mml:mn> </mml:mrow> </mml:msub> </mml:math>
George Wilson, Silvija Zilinskaite, Shiv Unka, R.C. Boston, Nik Reeves‐McLaren
Abstract
We have used a laboratory diffractometer to perform operando X-ray diffraction on LiFePO4 during electrochemical cycling in a coin cell fitted with a Kapton window. The results obtained are in good agreement with previous studies, verifying that extraction of Li from LiFePO4 follows dual-phase solid solution behaviour, with neither LiFePO4 nor FePO4 maintaining a static composition during deintercalation.
Topics & Concepts
Powder diffractionDiffractometerDiffractionIntercalation (chemistry)Window (computing)Materials scienceKaptonExtraction (chemistry)ElectrochemistryAnalytical Chemistry (journal)CrystallographyChemistryElectrodePhysicsInorganic chemistryComputer scienceNanotechnologyOpticsScanning electron microscopePhysical chemistryComposite materialPolyimideLayer (electronics)Operating systemChromatographyAdvancements in Battery MaterialsExtraction and Separation ProcessesAdvanced Battery Materials and Technologies