NIO's founder, chairman, and CEO, William Li, announced during today's live broadcast of the 150kWh battery pack endurance test that the executive flagship sedan ET9 will be unveiled at the 2023 NIO Day on December 23. At the same time, Li drove to test the endurance performance of the 150kWh ultra-long-range vehicle power battery pack. The battery pack is a soft pack CTP battery, and the cores are independently developed by NIO, with an energy density of 360Wh/kg. It is reported that this battery pack can adapt to all models of NIO's first and second generation platforms, and is expected to be mass-produced in April next year.