>Using lithium-ion batteries for stationary storage is interesting because their original advantage was all about light weight (lithium is the lightest metal el

>Using lithium-ion batteries for stationary storage is interesting because their original advantage was all about light weight (lithium is the lightest metal element). Not entirely. The real killer feature of LiPo which has allowed things like Roadster and Model S to exist is their high discharge, or "C" rating. The power density of LiPo is far beyond any previous chemistry available for batteries at scale. Energy density and power density are two completely different things [0]. https://www.quora.com/What-is-the-difference-between-power-density-and-energy-density-of-a-battery https://www.quora.com/What-is-the-difference-between-power-d... [0]