Investigation on the Electrochemical Performances of Mn2O3 as a Potential Anode for Na-Ion Batteries
Document Type
Article
Publication Date
1-1-2020
Abstract
Currently, the development of the sodium-ion (Na-ion) batteries as an alternative to lithium-ion batteries has been accelerated to meet the energy demands of large-scale power applications. The difficulty of obtaining suitable electrode materials capable of storing large amount of Na-ion arises from the large radius of Na-ion that restricts its reversible capacity. Herein, Mn2O3 powders are synthesised through the thermal conversion of MnCO3 and reported for the first time as an anode for Na-ion batteries. The phase, morphology and charge/discharge characteristics of Mn2O3 obtained are evaluated systematically. The cubic-like Mn2O3 with particle sizes approximately 1.0–1.5 µm coupled with the formation of Mn2O3 sub-units on its surface create a positive effect on the insertion/deinsertion of Na-ion. Mn2O3 delivers a first discharge capacity of 544 mAh g−1 and retains its capacity by 85% after 200 cycles at 100 mA g−1, demonstrating the excellent cyclability of the Mn2O3 electrode. Therefore, this study provides a significant contribution towards exploring the potential of Mn2O3 as a promising anode in the development of Na-ion batteries. © 2020, The Author(s).
Keywords
Sodium-ion Batteries, Nati2(Po4)3, Ion Storage
Divisions
PHYSICS
Funders
Universiti Malaysia Terengganu: the financial support under Talent And Publication Enhancement-Research Grant (TAPE-RG; vot no. 55158)
Publication Title
Scientific Reports
Volume
10
Issue
1
Publisher
Nature Research