On November 21, 2025, SAIC Motor made a significant announcement: its collaborative partner, Qingtao Energy, has successfully established a full - scale production line for all - solid - state batteries in Anting, Shanghai. In English, we often use “establish” to describe the act of setting up something like a production line, which is more idiomatic than “completed... production line” in this context. The prototype samples are projected to come off the production line by the end of this year. “Roll off” is a bit too literal; “come off” is a more commonly used and natural expression when referring to products leaving the production line. Following that, testing of prototype vehicles will kick off next year, and formal mass production along with delivery are slated for 2027. “Commence” is a bit formal; “kick off” is a more lively and commonly used phrase for starting something like testing. “Scheduled for” is replaced with “slated for” which is a more natural and frequently used expression in business and technology - related contexts. These all - solid - state batteries boast an energy density of over 400Wh/kg and provide enhanced safety features. This will undoubtedly strengthen SAIC's competitive edge in the new energy vehicle market.