The early days of electric racing brought all kinds of new knowledge. The cars got faster and had better mileage per charge, while the concept of thermal runaway was explained at length – the point that a lithium battery catches fire, creating the conditions that the fire needs to continue to burn.
That phenomenon led to measures being put in place around the transport of batteries. Formula E, for example, had to transport its batteries installed in the car as airlines worried that units travelling outside their