CATL, the world’s largest battery manufacturer, is not waiting for customers to come knocking on its door to buy batteries for their electric models. Oh, no. It has created what it calls its CATL Integrated Intelligent Chassis — a skateboard design that incorporates all the bits and pieces needed to make a fully functional electric car. All a customer would need to do is mount a body on top of the skateboard to have a finished product that could be sold to retail customers.