Chinese scientists have warned the government about sulfide all solid state
“We need to be prepared for the risk that all-solid-state battery technology could overturn” China’s upper hand in the EV battery market, Ouyang Minggao, a Tsinghua University professor, explained.
https://electrek.co/2024/02/12/byd-catl-form-chinese-powerhouse-solid-state-ev-batteries/
Ouyang is one of the authors on this paper on sulfide ASSB
https://www.sciencedirect.com/science/article/pii/S2590116823000474