I don't seem to be able to post links here. Searching for electric airplanes I found an interesting Cri Cri video on YouTube and Volta Volare GT4 4-passenger hybrid airplane they say has 300 mile battery range + 1000 mile gas powered:
GT4 uses an array of 236 off-the-shelf lithium-polymer batteries weighing 900 pounds. The company says the battery pack and 600 hp (peak) electric motor weigh less than the internal combustion engine on a comparable plane, which allowed engineers to add in extra batteries for physical balancing of the plane. There’s also a 23-gallon gas tank. The gas engine kicks in when battery power falls to 25%.
There's PC-Aero's single seat Elektra One.
And an article about the Ce-Liner for 2030:
concept presented by research institution Bauhaus Luftfahrt at this week's ILA Berlin Air Show makes that vision of air travel more relevant, efficient, and downright cool.
The recently unveiled Ce-Liner is a fully electric commercial passenger plane that would carry nearly 200 travelers between continents and over oceans. To develop it, Bauhaus Luftfahrt is using a variety of new technologies.
The distinctive "C-wing" improves aerodynamic efficiency and makes the goal of powering transatlantic flights with electricity more viable. The research institution predicts that battery technology will advance enough by 2030 to allow a flight range of nearly 700 miles. That will jump to 1,000 miles by 2035, and to 1,600 miles by 2040.
In addition to emissions-free flight (provided the electricity is produced from renewable resources), the Ce-Liner will have a half hour airport turnaround time, easily reversible motors for better speed control, and seat design that gives passengers more room when the plane is not full.