Energy storage in metal cobaltite electrodes: Opportunities & challenges in magnesium cobalt oxide

Syam G. Krishnan, Arunachalam Arulraj, Mohammad Khalid, M.V. Reddy and Rajan Jose

Renewable and Sustainable Energy Reviews, 2021, vol. 141, issue C

Abstract: Ternary metal cobaltites (TMCs) offering high charge storability, multiple oxidation states, and improved electrical conductivity are widely explored as electrodes for energy storage devices. Among them, magnesium cobalt oxide or magnesium cobaltite (MgCo2O4) could be a cheaper analogue due to the abundance of magnesium; however, limited by materials stability in certain electrolytic conditions, formation of insulating layers hindering the charge response under charge/discharge conditions. While certain morphologies of MgCo2O4 delivered capacities higher than the theoretical capacity in lithium ion storage mode, it delivered only a quarter of the theoretical value in a supercapattery storage mode. This review critically analyzes the progress in MgCo2O4 as a charge storing electrode for lithium-ion battery, supercapattery (battery-type electrode), and magnesium rechargeable battery cathodes. A detailed account of the research undertaken is presented herewith and identifies opportunities and research gaps, which are expected to serve as a guide for future research in ternary metal cobaltites.

Keywords: Pseudocapacitors; Energy storage devices; Battery–supercapacitor hybrids; Asymmetric supercapacitors; MgCo2O4 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S1364032121000939
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:141:y:2021:i:c:s1364032121000939

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/600126/bibliographic
http://www.elsevier. ... 600126/bibliographic

DOI: 10.1016/j.rser.2021.110798

Access Statistics for this article

Renewable and Sustainable Energy Reviews is currently edited by L. Kazmerski

More articles in Renewable and Sustainable Energy Reviews from Elsevier
Bibliographic data for series maintained by Catherine Liu ().