One Less Moving Part: Tesla Turbine integrated redox flow batteries and metal-air cells.

Catholyte/Plating type flow battery (ex: ZnBr)

A stack of six welding steel discs about 6 inches (15cm) in diameter weighs around 2 pounds (1 kg). If this metal (Fe0 — metallic steel) were completely converted to rust (Fe3+ ; specifically Fe2O3), it would generate around 1200 Watt hours (Wh). That’s enough power to run an LED light bulb for nearly a week. It might run a desktop computer…