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An Overview on Anodes for Magnesium Batteries: Challenges towards a Promising Storage Solution for Renewables.
- Source :
-
Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2021 Mar 22; Vol. 11 (3). Date of Electronic Publication: 2021 Mar 22. - Publication Year :
- 2021
-
Abstract
- Magnesium-based batteries represent one of the successfully emerging electrochemical energy storage chemistries, mainly due to the high theoretical volumetric capacity of metallic magnesium (i.e., 3833 mAh cm <superscript>-3</superscript> vs. 2046 mAh cm <superscript>-3</superscript> for lithium), its low reduction potential (-2.37 V vs. SHE), abundance in the Earth's crust (10 <superscript>4</superscript> times higher than that of lithium) and dendrite-free behaviour when used as an anode during cycling. However, Mg deposition and dissolution processes in polar organic electrolytes lead to the formation of a passivation film bearing an insulating effect towards Mg <superscript>2+</superscript> ions. Several strategies to overcome this drawback have been recently proposed, keeping as a main goal that of reducing the formation of such passivation layers and improving the magnesium-related kinetics. This manuscript offers a literature analysis on this topic, starting with a rapid overview on magnesium batteries as a feasible strategy for storing electricity coming from renewables, and then addressing the most relevant outcomes in the field of anodic materials (i.e., metallic magnesium, bismuth-, titanium- and tin-based electrodes, biphasic alloys, nanostructured metal oxides, boron clusters, graphene-based electrodes, etc.).
Details
- Language :
- English
- ISSN :
- 2079-4991
- Volume :
- 11
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Nanomaterials (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 33809914
- Full Text :
- https://doi.org/10.3390/nano11030810