Smartphone batteries with twice the life may arrive in 2017
 

A type of lithium battery that could make gasoline-powered cars obsolete is on track to be commercialized, according to MIT News. The "lithium metal" batteries, developed by MIT spin-off SolidEnergy, can reportedly pack the same energy as a standard...

https://www.engadget.com/2016/08/19/...rrive-in-2017/