China's CATL, the world's largest battery maker, plans to start small-scale production of solid electrolyte batteries by 2027. On the TRL scale of 1 to 9, which uses technology and production maturity as a rating system, CATL's development of this technology is currently at level 4, and they want to take it to level 7 to 8 by 2027, but this does not yet mean mass production. Details at cnevpost.com 🇨🇳