Using polyoxometalates to enhance the capacity of lithium–oxygen batteries

Tom Homewood; James T. Frith; J. Padmanabhan Vivek; Nieves Casañ-Pastor; Dino Tonti; John R. Owen; Nuria Garcia-Araez

doi:10.1039/C8CC03832E

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Using polyoxometalates to enhance the capacity of lithium–oxygen batteries†

Tom Homewood,^a James T. Frith,^a J. Padmanabhan Vivek,

^a Nieves Casañ-Pastor,

^b Dino Tonti,

^b John R. Owen

^a and Nuria Garcia-Araez

*^a

Author affiliations

* Corresponding authors

^a Chemistry, University of Southampton, Southampton, UK
E-mail: n.garcia-araez@soton.ac.uk

^b ICMAB-CSIC, Campus UAB 08193 Bellaterra, Barcelona, Spain

Abstract

The Keggin-type polyoxometalate α-SiW₁₂O₄₀⁴⁻ increases the discharge capacity and potential of lithium–oxygen batteries, by facilitating the reduction of O₂ to Li₂O₂, as confirmed by in situ electrochemical pressure measurements and XRD. Compared to organic redox mediators, polyoxometalates have higher chemical and structural stability, which could lead to longer cycling lithium–oxygen batteries.

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Article information

DOI: https://doi.org/10.1039/C8CC03832E
Article type: Communication
Submitted: 12 May 2018
Accepted: 30 Jul 2018
First published: 30 Jul 2018

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Chem. Commun., 2018,54, 9599-9602

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Using polyoxometalates to enhance the capacity of lithium–oxygen batteries

T. Homewood, J. T. Frith, J. P. Vivek, N. Casañ-Pastor, D. Tonti, J. R. Owen and N. Garcia-Araez, Chem. Commun., 2018, 54, 9599 DOI: 10.1039/C8CC03832E

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Chemical Communications

Using polyoxometalates to enhance the capacity of lithium–oxygen batteries†

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Using polyoxometalates to enhance the capacity of lithium–oxygen batteries

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