CATL and Nio have signed an agreement to establish a nationwide battery-swapping network in ChinaThe network will use Nio's swap tech and CATL's Choco-swap technologyCATL's Choco-swap offers batteries ranging from 42 kWh to 70 kWh for subcompact to midsized carsNio Firefly EV will be one of the first cars to use the shared network and technology