title: Influence of conversion material morphology on electrochemistry studied with operando X-ray tomography and diffraction.
abstract: X-ray diffraction and X-ray tomography are performed on intermetallic particles undergoing lithiation in a porous electrode. Differences between ensemble phase evolution and that at a single-particle level are explored. It is found that all particles evidence core-shell lithiation; however, particles with internal porosity are more mechanically robust and exhibit less fracture.
authors.affiliation: Electrochemistry Laboratory, Paul Scherrer Institute, CH-5232, Villigen PSI, Switzerland.
authors.forename: Claire
authors.initials: C
authors.lastname: Villevieille
authors.forename: Martin
authors.initials: M
authors.lastname: Ebner
authors.forename: Juan Luis
authors.initials: JL
authors.lastname: Gómez-Cámer
authors.forename: Federica
authors.initials: F
authors.lastname: Marone
authors.forename: Petr
authors.initials: P
authors.lastname: Novák
authors.forename: Vanessa
authors.initials: V
authors.lastname: Wood
keywords: Li-ion batteries; conversion reactions; operando X-ray tomography and diffraction; particles fractures