Formation of the Graphite/Electrolyte Interface by Lithium Bis(oxalato)borate
- 1 January 2003
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 6 (6) , A117-A120
- https://doi.org/10.1149/1.1568173
Abstract
Solid electrolyte interface (SEI) formed on graphitic anode in electrolyte containing a salt, lithium bis(oxalato)borate (LiBOB), was investigated using electrochemical means, and an irreversible reduction process was found for LiBOB on graphitic anode at ca. 1.6 V vs. Li. To ascertain whether this process is responsible for the unique LiBOB property in stabilizing graphene structure against propylene carbonate (PC), we systematically interrupted the lithiation of graphitic anodes in LiBOB-electrolytes at a series of potentials and then tested the survivability of these preformed anodes in PC solution of an electrolyte composition known to exfoliate graphite materials readily. The results demonstrate that the formation of a functioning SEI is completed at potentials around 0.50 V vs. Li, and confirmed that BOB-anion plays a critical role in the effectiveness of the formed SEI to protect the graphene structure from exfoliation even in PC. © 2003 The Electrochemical Society. All rights reserved.Keywords
This publication has 14 references indexed in Scilit:
- DEMS study of gas evolution at thick graphite electrodes for lithium-ion batteries: the effect of γ-butyrolactoneJournal of Power Sources, 2001
- Chemical Composition and Morphology of the Elevated Temperature SEI on GraphiteJournal of the Electrochemical Society, 2001
- Comparison Between the Electrochemical Behavior of Disordered Carbons and Graphite Electrodes in Connection with Their StructureJournal of the Electrochemical Society, 2001
- Origin of Graphite Exfoliation An Investigation of the Important Role of Solvent CointercalationJournal of the Electrochemical Society, 2000
- In Situ Investigation of the Electrochemical Reduction of Carbonate Electrolyte Solutions at Graphite ElectrodesJournal of the Electrochemical Society, 1998
- The dependence of the performance of Li-C intercalation anodes for Li-ion secondary batteries on the electrolyte solution compositionElectrochimica Acta, 1994
- Dependence of the electrochemical intercalation of lithium in carbons on the crystal structure of the carbonElectrochimica Acta, 1993
- Electrochemical and spectroscopic studies of carbon electrodes in lithium battery electrolyte systemsJournal of Power Sources, 1993
- Rechargeable LiNiO2 / Carbon CellsJournal of the Electrochemical Society, 1991
- Studies of Lithium Intercalation into Carbons Using Nonaqueous Electrochemical CellsJournal of the Electrochemical Society, 1990