Establishing operando diffraction capability through the study of Li-ion (de) intercalation in LiFePO4. (May 2020)

• Record Type: Journal Article
• Authors: Wilson, George; Zilinskaite, Silvija; Unka, Shiv; Boston, Rebecca; Reeves-McLaren, Nik
• Is Part Of: Energy reports. Volume 6(2020)Supplement 5
• Page Start: 174
• Page End: 179
• Publication Date: 2020-05
• Subjects: Energy storage -- Operando XRD -- Lithium iron phosphate -- Phase change; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2020.03.022
• Languages: English
• ISSNs: 2352-4847

Abstract

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.