Self-discharge of Fe–Ni alkaline batteries

Fabrication Fe/Fe₃O₄/Graphene Nanocomposite Electrode Material for Rechargeable Ni/Fe Batteries in Hybrid Electric Vehicles

“…The Ni-Fe rechargeable alkaline battery, in which iron is used as the anode and Ni(OH) 2 as the cathode material, was developed around 1900, and has a cycle life of 3000 cycles and a calendar life of about 20 years [1]. Nickel-iron batteries are highly promising for large scale battery applications owing to their high theoretical capacity [2], inexpensiveness, and absence of toxic materials [3].…”

Iron/carbon-black composite nanoparticles as an iron electrode material in a paste type rechargeable alkaline battery

“…The Ni-Fe rechargeable alkaline battery, in which iron is used as the anode and Ni(OH) 2 as the cathode material, was developed around 1900, and has a cycle life of 3000 cycles and a calendar life of about 20 years [1]. Despite its good resistance against overcharging, deep discharging, and mechanical shocks, this battery has been replaced owing to its relatively low power density, low energy density [2], and high self-discharge [3]. Alternatively, nickel-iron batteries are highly promising for large scale battery applications owing to their high theoretical capacity, inexpensiveness, and absence of toxic materials.…”

Electrochemical characteristics of iron carbide as an active material in alkaline batteries

“…From a cost-efficiency perspective, a simple and large battery system using an inexpensive active material would be suitable. Iron has been considered as a promising active material of alkaline secondary batteries because of its low cost, large specific capacity, and long-term durability [1][2][3][4][5][6]. For this study, we chose iron carbide Fe 3 C, an inexpensive compound of iron, as an active material candidate.…”