Smartphone batteries with twice the capacity by next year... tech dev'd @ MIT....
https://www.engadget...arrive-in-2017/
On the one hand...
electric cars using the tech could go twice as far with the same size battery -- a 280 mile-range Tesla Model S could go 560 miles
But on the other hand...
last we heard, it could handle 300 cycles and still retain 80 percent capacity, which is good for electronics but may be too little for an EV.
Also, we've been disappointed with battery "breakthroughs" so often, that we'll believe it when we see them on a store shelf.
