IPNews® – Tesla Motors has filed a patent application for a backup battery for an electric car.

Tesla recently filed for patent protection of a metal-air battery for use in its successful line of electric cars.  The new technology, if implemented, would work in conjunction with the cars’ traditional lithium-ion batteries and would provide a low cost means for extending the overall battery life of electric-only vehicles.   To continue reading, click: Tesla Files Patent Over Battery for Long Car Trips