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Surface films of lithium: an overview of electrochemical studies

Munichandraiah, N and Scanlon, LG and Marsh, RA (1998) Surface films of lithium: an overview of electrochemical studies. In: Journal of Power Sources, 72 (2). pp. 203-210.

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Abstract

There is considerable ambiguity in the literature about the importance of lithium surface film on the electrochemical reaction at the lithiumrelectrolyte interface. Some studies attribute the measured interfacial properties to the surface film on lithium alone and other studies consider the measured properties due entirely to electron-transfer reaction; while a few studies provide due recognition to both the surface film as well as the charge-transfer reaction. Literature on DC polarization and AC impedance spectroscopic studies of Lirnon-aqueous liquid and solid polymer electrolyte interface is reviewed. Our electrochemical impedance spectroscopic studies of lithium/solid polymer electrolyte interface are analyzed using simple equivalent circuit models. The models include both the surface film properties as well as the electron-transfer reaction. The experimental results and reviewed literature support that both the surface film on lithium and the electron-transfer reaction are equally important interfacial phenomena, and should be considered simultaneously during an investigation.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Lithium;Surface film;Electron-transfer reaction;DC polarization;AC impedance
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 04 Dec 2006
Last Modified: 19 Sep 2010 04:32
URI: http://eprints.iisc.ernet.in/id/eprint/9031

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