Ultra-fast cycling of nanoscale thin-film LiCoO2 electrodes in aqueous electrolytes

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Ultra-fast cycling of nanoscale thin-film LiCoO2 electrodes in aqueous electrolytes

Clancy, Tomás M.; Rohan, James F.
Date: 2018-08-03
Copyright: © 2018, John Wiley & Sons Inc. This is the peer reviewed version of the following article: Clancy, T. M. and Rohan, J. F. (2018) 'Ultra-fast cycling of nanoscale thin-film LiCoO2 electrodes in aqueous electrolytes', ChemElectroChem. doi: 10.1002/celc.201800822, which has been published in final form at https://doi.org/10.1002/celc.201800822. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Full text restriction information: Access to this article is restricted until 12 months after publication by request of the publisher.
Restriction lift date: 2019-08-03
Citation: Clancy, T. M. and Rohan, J. F. (2018) 'Ultra-fast cycling of nanoscale thin-film LiCoO2 electrodes in aqueous electrolytes', ChemElectroChem. doi: 10.1002/celc.201800822
Published Version: doi:10.1002/celc.201800822

Abstract:

Additive‐free nanoscale LiCoO2 thin‐films deposited on Si substrates using DC sputtering show exceptional electrochemical performance due to the unique kinetics of the nanoscale thin‐film in aqueous environment. At extremely high scan rates and galvanostatic current densities of up to 100 mV s−1 and 200 C respectively, a capacity retention equivalent to 97 mAh g−1 (4.8 μAh cm−2, 48.3 μAh cm−2 μm−1) is obtained. A significant contribution of non‐diffusion controlled kinetics in a LiCoO2 electrode is shown.

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