Investigations of the Electrochemical Stability of Aqueous Electrolytes for Lithium Battery Applications

Colin Wessells, Riccardo Ruffο, Robert A. Huggins, Yi Cui

Research output: Contribution to journalArticlepeer-review

94 Scopus citations


The electrolytic stability windows of several aqueous electrolytes were investigated by a constant current method. The electrode potential range depended upon the value of the imposed current. The magnitude of this behavior varied with the salt solution, its concentration, and pH of the electrolyte. At a leakage current density of 50 μA/cm2, a 5 M solution of LiNO3 had an electrolytic window of 2.3 V, spanning from -0.55 to 1.75 V with respect to the standard hydrogen electrode. These results demonstrate the feasibility of operating lithium batteries at voltages appreciably above the theoretical decomposition voltage of water. © 2010 The Electrochemical Society.
Original languageEnglish (US)
Pages (from-to)A59
JournalElectrochemical and Solid-State Letters
Issue number5
StatePublished - 2010
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-001-12
Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST) Investigator Award (no. KUS-11-001-12) and the Global Climate and Energy Program at Stanford University.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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