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NIO unveiled its flagship sedan ET7 at the NIO Day 2020 event on January 9, 2021, it said the model would be available in a version with a 150-kWh solid-state battery starting in the fourth quarter of 2022, giving it an NEDC range of 1,000 kilometers. At the time, the company did not disclose the supplier of the battery.
The announcement was issued by Li Hong, chief scientist and founder of the solid-state battery supplier WeLion, during comments at the China EV 100 Forum. The battery is expected to start mass production by the end of this year or the first half of next year, said Li, a researcher at the Institute of Physics, Chinese Academy of Sciences.
By Michael Elkins
