Chinese electric vehicle (EV) maker Nio plans to add another 1,000 battery swapping stations to its network this year, adding to its US$2.6 billion bet on the technology despite a challenge from fast-charging batteries as it touts its 100 millionth swap. The company’s 3,729 stations allow owners of compatible Nio EVs to exchange a spent battery pack for a charged one in just three minutes, and most navigate the car into position automatically. Created to ease anxiety over range and slow...