The upcoming new Volvo EX90 sports utility is due to become the first electric car to carry a “battery passport” which shows customers key data on the pack’s carbon footprint. Volvo and the British start-up Circulor have been developing the passport solution over the past five years. Tesla and Audi have also shown prototype versions of their “passports,” but Volvo is the first to launch a vehicle fitted with one. The Volvo EX90, a premium EV flagship, which sits alongside the combustion engine-powered XC90, will soon enter production at the US plant in Charleston in South Carolina before enter…