Open AccessControlling Magnesium Self-Corrosion in Mg–Air Batteries with the Conductive Nanocomposite PANI@3D-FCNT
Author(s) -
M.A. Deyab,
Mohsen Mohammed Al-Qhatani
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c03993
Subject(s) - materials science , corrosion , battery (electricity) , electrode , electrolyte , nanocomposite , electrochemistry , electrical conductor , energy storage , current collector , chemical engineering , nanotechnology , metallurgy , composite material , chemistry , engineering , power (physics) , physics , quantum mechanics
A promising potential device for storage of large amounts of energy is Mg-air batteries. However, the corrosion of the Mg electrode inside the battery electrolyte limits the battery's capacity to store energy. We present a new strategy to protect the Mg electrode from corrosion and increase the life cycle of Mg batteries in this article. The Mg electrode is coated with a conductive nanocomposite (PANI@3D-FCNT) in this technique. To better understand the anticorrosion properties of PANI@3D-FCNTs and their effect on the battery efficiency, electrochemical and battery tests are used. We discovered that PANI@3D-FCNT plays the most promising role in reducing Mg electrode corrosion in 3.5 wt % NaCl electrolyte, with an efficiency of 93.9%. The battery with the coated Mg electrode has a longer discharge time and a slower drop in operating voltage. The PANI@3D-FCNT nanocomposite will prolong the life of the Mg-air battery and keep the Mg electrode active for a long time. This work outstandingly provides an effective strategy to address the defects in the Mg-air batteries arising from electrode corrosion successfully. The work is a great way to open up new avenues for introducing new conductive nanocomposites in metal-air battery designs without using traditional methods.