Rights statement: This is the author’s version of a work that was accepted for publication in Current Opinion in Electrochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Current Opinion in Electrochemistry, 31, 2022 DOI: 10.1016/j.coelec.2021.100817
Accepted author manuscript, 1.36 MB, PDF document
Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Progress in high-voltage MgMn2O4 oxyspinel as a cathode material in Mg batteries
AU - Michail, Alexandra
AU - Silvan Uriarte, Begona
AU - Tapia-Ruiz, Nuria
N1 - This is the author’s version of a work that was accepted for publication in Current Opinion in Electrochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Current Opinion in Electrochemistry, 31, 2022 DOI: 10.1016/j.coelec.2021.100817
PY - 2022/2/28
Y1 - 2022/2/28
N2 - Rechargeable magnesium batteries (RMBs) are a promising post-lithium battery technology that benefits from the use of a Mg metal anode, which provides a high volumetric capacity (3833 mAh/cm3), low reduction potential, and dendrite-free deposition. In parallel to the development of novel electrolytes compatible with Mg, the future realisation of rechargeable magnesium batteries demands cathode materials with high-energy densities and suitable Mg intercalation kinetics. In this mini-review, the focus will be laid on the high-voltage intercalation MgMn2O4 oxyspinel cathode (and substituted derivatives). We aim at providing an updated understanding of the reaction mechanisms occurring during (de)magnesiation of MgMn2O4, and the role of Mg/Mn anti-site defects in its electrochemical behaviour. We then critically evaluate the performance of MgMn2O4 in organic and aqueous-based electrolytes, highlighting their merits and challenges, and provide an overview of the most recent developments to improving battery performance. Finally, we will highlight key areas that require further attention to provide an understanding of their charge storage behaviour.
AB - Rechargeable magnesium batteries (RMBs) are a promising post-lithium battery technology that benefits from the use of a Mg metal anode, which provides a high volumetric capacity (3833 mAh/cm3), low reduction potential, and dendrite-free deposition. In parallel to the development of novel electrolytes compatible with Mg, the future realisation of rechargeable magnesium batteries demands cathode materials with high-energy densities and suitable Mg intercalation kinetics. In this mini-review, the focus will be laid on the high-voltage intercalation MgMn2O4 oxyspinel cathode (and substituted derivatives). We aim at providing an updated understanding of the reaction mechanisms occurring during (de)magnesiation of MgMn2O4, and the role of Mg/Mn anti-site defects in its electrochemical behaviour. We then critically evaluate the performance of MgMn2O4 in organic and aqueous-based electrolytes, highlighting their merits and challenges, and provide an overview of the most recent developments to improving battery performance. Finally, we will highlight key areas that require further attention to provide an understanding of their charge storage behaviour.
KW - Batteries
KW - Mg battery
KW - Oxyspinel
KW - Inversion
KW - Reaction mechanism
KW - Organic electrolyte
KW - Aqueous electrolyte
KW - Cathode
KW - Nanosizing
U2 - 10.1016/j.coelec.2021.100817
DO - 10.1016/j.coelec.2021.100817
M3 - Journal article
VL - 31
JO - Current Opinion in Electrochemistry
JF - Current Opinion in Electrochemistry
SN - 2451-9103
M1 - 100817
ER -