Not only is battery performance steadily improving, Clarke argues, but there are ways to improve the performance of electric motors and thereby squeeze more range out of existing battery technology.
Source: Airline plans to use electric airplanes in 10 years—is that possible? | Ars Technica
I don’t know that 10 years is possible, but I would love to see this happen. Among other things, I expect it would also be much quieter.