Chinese electric vehicle (EV) maker BYD has unveiled a new charging system that it said could make it possible for EVs to charge as quickly as it takes to refill with petrol and announced for the first time that it would build a charging network across China. The so-called “super e-platform” will be capable of peak charging speeds of 1,000 kilowatts (kW), enabling cars that use it to travel 400km (249 miles) on a five-minute charge, founder Wang Chuanfu said at an event livestreamed from the company’s Shenzhen headquarters on Monday. Charging speeds of 1,000 kW would be twice as…