Understanding surface reactivity of Si electrodes in Li-ion batteries by in operando scanning electrochemical microscopy. Issue 41 (3rd May 2016)

• Record Type: Journal Article
• Authors: Ventosa, E.; Wilde, P.; Zinn, A.-H.; Trautmann, M.; Ludwig, A.; Schuhmann, W.
• Is Part Of: Chemical communications. Volume 52:Issue 41(2016)
• Page Start: 6825
• Page End: 6828
• Publication Date: 2016-05-03
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c6cc02493a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : In operando SECM is employed to monitor the evolution of the electrically insulating character of a Si electrode surface during (de-)lithiation. 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.