It's still early days for the promise of Safer, energy-dense solid-state rechargeable Batteries. However, a team of scientists at the Joint Center for Energy Storage Research have just discovered a fast magnesium-ion solid-state conductor that will g...
https://www.engadget.com/2017/12/01/...-than-lithium/
https://www.engadget.com/2017/12/01/...-than-lithium/