> Again, 'solid state' is a marketing term. No. It's a battery with a solid electrolyte: https://en.wikipedia.org/wiki/Solid-state_battery https://en.wikipedi

> Again, 'solid state' is a marketing term. No. It's a battery with a solid electrolyte: https://en.wikipedia.org/wiki/Solid-state_battery https://en.wikipedia.org/wiki/Solid-state_battery https://en.wikipedia.org/wiki/Solid-state_electrolyte https://en.wikipedia.org/wiki/Solid-state_electrolyte They've been around for a long time.