FeLVB
FeLVB is a term used in theoretical discussions and speculative fiction to denote a hypothetical energy storage concept called the Ferric-Lithium-Vanadium Battery. The name reflects the proposed combination of iron-based electrode chemistry, lithium-ion transport, and a vanadium-containing component intended to enable fast redox reactions. The concept emerged in theoretical and industry discourse in the early 2020s as part of broader explorations of lower-cost, high-energy-density batteries using earth-abundant elements.
In the theoretical model, a ferrite-like iron oxide electrode would host Li+ intercalation, paired with a vanadium
Reality and status: there is no experimental demonstration of a working FeLVB battery. Technical challenges cited
See also: iron-based batteries, vanadium redox flow battery, lithium-ion battery.