"This provides an insight into the next generation of automobiles for efficient long-distance mobility with a range of more than 400 kilometres. The lightweight architecture has been designed for maximum crash safety including the battery. The battery is based on advanced lithium-ion cells and the efficiency of the electric motor has been optimised."
Source:
https://electrek.co/2017/07/04/vw-all-electric-research-car-mobile-charging-robots/