title: Understanding surface reactivity of Si electrodes in Li-ion batteries by in operando scanning electrochemical microscopy.
abstract: In operando SECM is employed to monitor the evolution of the electrically insulating character of a Si electrode surface during (de-)lithiation. The solid-electrolyte interface (SEI) formed on Si electrodes is shown to be intrinsically electrically insulating. However, volume changes upon (de-)lithiation lead to the loss of the protecting character of the initially formed SEI.
authors.affiliation: Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, D-44780 Bochum, Germany. edgar.ventosa@rub.de wolfgang.schuhmann@rub.de.
authors.forename: E
authors.initials: E
authors.lastname: Ventosa
authors.forename: P
authors.initials: P
authors.lastname: Wilde
authors.forename: A-H
authors.initials: AH
authors.lastname: Zinn
authors.forename: M
authors.initials: M
authors.lastname: Trautmann
authors.forename: A
authors.initials: A
authors.lastname: Ludwig
authors.forename: W
authors.initials: W
authors.lastname: Schuhmann