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Phendione-Transition Metal Complexes with Bipolar Redox for Lithium Batteries

preprint
submitted on 29.01.2020 and posted on 30.01.2020 by Alae Eddine Lakraychi, Simon De Kreijger, Deepak Gupta, Benjamin Elias, Alexandru Vlad
1,10-Phenanthroline-5,6-dione (Phendione) - based transition metal complexes are known for their use in pharmacological and catalysis applications. However, their application in electrochemical energy storage has not been investigated thus far. Herein we prove the feasibility of employing phendione - transition metal complexes for electrochemical charge storage by taking advantage of the reversible redox of both, carbonyl groups and transition metal center, contributing thus to augmented charge storage. Interestingly, the chemistry of the counter ion in the studied complexes effectively tunes the solubility and improves the cycling stability. Whereas further studies are required to limit the solubility and active species shuttle, this study explores the bottlenecks of phendione - transition metal complexes as electrode materials for solid electrode format batteries.

Funding

European Research Council - grant agreement no. 770870

F.R.S.-FNRS - N° J.0111.16 - Equinox

History

Email Address of Submitting Author

alexandru.vlad@uclouvain.be

Institution

Universite catholique de Louvain

Country

Belgium

ORCID For Submitting Author

0000-0002-0059-9119

Declaration of Conflict of Interest

The authors declare no conflict of interest.

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