https://www.bloomberg.com/news/articles/2019-01-06/before-the-electric-car-takes-over-someone-needs-to-reinvent-the-battery?srnd=hyperdrive

"... Someone Needs to Reinvent the Battery ... To deliver an electric vehicle that’s cheaper, safer and capable of traveling 500 miles on a single charge, the auto industry needs a breakthrough in battery technology. Easier said than done.

"Scientists in Japan, China and the U.S. are among those struggling to crack the code of how to significantly boost the amount of energy a battery cell can store and bring an EV's driving range into line with a full tank of gas. 

"If it can be mastered, solid-state technology could help speed the demise of the combustion-engine car and potentially slash EV charging times to about 10 minutes from as much as several hours. The supercharger network built by Tesla Inc., now offering some of the fastest charge times, needs approximately 30 minutes to bring a depleted car to 80 percent.

“Among all the players out there, it seems like everyone has solved one or two or three of five of the most important things, but nobody has really solved everything,” said Henrik Fisker, chairman and chief executive officer of his namesake Los Angeles-based EV maker."