In:
Inorganic Chemistry Frontiers, Royal Society of Chemistry (RSC), Vol. 11, No. 14 ( 2024), p. 4347-4363
Abstract:
Aqueous Mg–air batteries possess tremendous potential for future energy storage applications owing to their inherent advantages in terms of safety and cost-effectiveness. Nevertheless, the practical implementation of this battery technology is impeded by uncontrolled self-corrosion at the anode and significant polarization caused by the accumulation of discharge byproducts. This investigation employed glycerol (Gly) as a novel electrolyte additive in aqueous Mg–air batteries, offering a dual solution to these challenges. The findings elucidated that an appropriate quantity of Gly effectively mitigates self-corrosion and polarization by facilitating the formation of an electrostatic shielding layer, a water-deficient electric double layer (EDL), as well as reconstructing the solvation sheath. By incorporating 3 v/v% Gly, the anode efficiency of the AZ31 anode witnessed a notable increase from 46.22% to 65.12% at a current density of 20 mA cm −2 . Moreover, the discharge voltage experienced an elevation from 1.10 V to 1.25 V, while achieving a high specific capacity of up to 1459.85 mA h g −1 . This study endeavors to provide a straightforward and feasible approach for developing high-performance and cost-effective aqueous Mg–air batteries.
Type of Medium:
Online Resource
ISSN:
2052-1553
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2024
detail.hit.zdb_id:
2757213-4
