The behavior of chemical and electrochemical Ag deposition on FeNi‐mesh cathodes in Al‐air battery

Abstract

Summary In this study, FeNi/Ag cathode was made for aluminium air battery. For this purpose, FeNi‐mesh electrode surfaces were treated in two different ways (chemical and electrochemical deposition), with noble metal silver having a high catalytic activity. The optimum time for both methods was determined. The electrochemical properties were determined using cyclic voltammogram (CV), electrochemical impedance spectroscopy (EIS), and current‐potential (i‐t) curves. The battery performance tests were performed, and surface characteristics of the electrodes were determined with a scanning electron microscope an X‐ray diffraction method (SEM‐EDS and XRD). This study shows that FeNi mesh electrodes chemically and electrochemically deposited with silver are alternative for oxygen‐reducing cathodes for aluminium air battery because they are cheap, practical, and effective. The electrochemical (FeNi/Ag‐ED) deposition is better than the chemical (FeNi/Ag‐CD) deposition in terms of both economical and higher battery potential.

The role of Al 2 Ca and Al 2 (Sm,Ca,La) particles in the microstructures and electrochemical discharge performance of as‐extruded Mg‐3wt.%Al‐1wt.%Zn‐based alloys for primary Mg‐air batteries

“…Metal‐air batteries, made up of metal‐based anodes, air‐breathing cathodes, and electrolyte, are being regarded as a clean and high energy fuel for the modern automotive industry . The preparation of durable and high performance air‐breathing cathodes is one of the hotspots for metal‐air batteries, as well as the battery management (temperature increase and discharge characteristics) . Even so, practicable anode materials also require additional attention.…”

Integrating micro metal‐air batteries in lateral flow test for point‐of‐care applications

“…Instead of noble metal catalysts such as Pt and Ag, 31 MnO 2 is widely used for the oxygen reduction reaction (ORR) in metal-air batteries because of its low cost, 32 which, however, brings pollution issues. To make themicro MABs more environmentally friendly, a commercial nitrogen-doped carbon nanotube (N-CNT, Aladdin) powder was used instead of MnO 2 .…”

Growth restriction of Co 3 O 4 nanoparticles by α‐MnO 2 nanorods as air cathode catalyst for rechargeable aluminum‐air battery

“…Metal-air batteries (MABs), with the advantages of low cost, high energy density, large capacity, and less dependence of capacity on workload and temperature, have attracted much attention. [1][2][3][4][5] MABs convert chemical energy into electricity by consuming metals and oxygen in the air, making them an ideal clean energy source. [6][7][8] Thereinto, on account of the high electrochemical equivalent (2.98 Ah/g) and volume-specific energy (8.04 Ah cm À3 ) of aluminum, the aluminum-air battery (AAB) has the actual specific energy of 900 Wh/kg, 9 and the theoretical specific energy of AAB can reach 8100 Wh/kg, 10 which is second only to lithium-air batteries in all MABs.…”

“…Metal‐air batteries (MABs), with the advantages of low cost, high energy density, large capacity, and less dependence of capacity on workload and temperature, have attracted much attention 1‐5 . MABs convert chemical energy into electricity by consuming metals and oxygen in the air, making them an ideal clean energy source 6‐8 .…”