German automaker Audi is working with Chinese solar-cell specialist Hanergy to develop thin-film solar cells that can be integrated into the panoramic glass roofs of its cars.
Audi says that the integrated cells ? which are being developed with Hanergy subsidiary Alta Devices ? will generate solar energy for electric vehicles. The generated power would be used to supply systems such as air-conditioning or seat heaters, increasing the range of the electric cars.
The first joint prototype is expected to be ready by the end of 2017. Audi told Dezeen that it will then start an intensive testing phase to check whether the prototype fulfils its technical requirements in terms of safety, quality, robustness and environmental protection.
"The range of electric cars plays a decisive role for our customers," commented Audi's board member Dr Bernd Martens. "Together with Hanergy, we plan to install innovative solar technology in our electric cars that will extend their range and is also sustainable." The marque also stated that in the future, the solar cells could cover almost the entire roof surface, and at a later stage, solar energy could directly charge the traction battery ? which powers the propulsion of the vehicle.
"That would be a milestone along the way to achieving sustainable, emission-free mobility," continued Martens.
Thin and flexible, the solar cells are produced by Alta Devices in California from gallium arsenide and have a...