Review—SEI: Past, Present and Future. Issue 7 (6th June 2017)

• Record Type: Journal Article
• Authors: Peled, E.; Menkin, S.
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 7(2017)
• Page Start: A1703
• Page End: A1719
• Publication Date: 2017-06-06
• Subjects: artificial-SEI -- calcium -- electrolyte -- ion -- lithium -- magnesium -- SEI -- silicon -- sodium; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.1441707jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : The Solid-Electrolyte-Interphase (SEI) model for non-aqueous alkali-metal batteries constitutes a paradigm change in the understanding of lithium batteries and has thus enabled the development of safer, durable, higher-power and lower-cost lithium batteries for portable and EV applications. Prior to the publication of the SEI model (1979), researchers used the Butler-Volmer equation, in which a direct electron transfer from the electrode to lithium cations in the solution is assumed. The SEI model proved that this is a mistaken concept and that, in practice, the transfer of electrons from the electrode to the solution in a lithium battery, must be prevented, since it will result in fast self-discharge of the active materials and poor battery performance. This model provides [E. Peled, in "Lithium Batteries, " J.P. Gabano (ed), Academic Press, (1983), E. Peled, J. Electrochem. Soc., 126, 2047 (1979).] new equations for: electrode kinetics (io and b), anode corrosion, SEI resistivity and growth rate and irreversible capacity loss of lithium-ion batteries. This model became a cornerstone in the science and technology of lithium batteries. This paper reviews the past, present and the future of SEI batteries.