High energy density MnO4-/MnO42- redox couple for alkaline redox flow batteries

Alejandro N Colli; Pekka Peljo; Hubert H Girault

doi:10.1039/c6cc08070g

High energy density MnO₄^-/MnO₄^2- redox couple for alkaline redox flow batteries

Chem Commun (Camb). 2016 Nov 29;52(97):14039-14042. doi: 10.1039/c6cc08070g.

Authors

Alejandro N Colli¹, Pekka Peljo¹, Hubert H Girault¹

Affiliation

¹ Laboratoire d'Electrochimie Physique et Analytique, École Polytechnique Fédérale de Lausanne, EPFL, Valais Wallis, Rue de l'Industrie 17, Case Postale 440, CH-1951 Sion, Switzerland. ancolli@gmail.com.

PMID: 27853767
DOI: 10.1039/c6cc08070g

Abstract

The MnO₄^-/MnO₄^2- redox couple has a positive redox potential, high electrochemical reversibility and high solubility, up to 3.62 M at room temperature. Careful optimization of the electrolyte composition and the potential limits eliminates the side reactions, making this redox couple an attractive option for alkaline redox flow batteries.