Sodium-ion EV battery breakthrough delivers 11-min charging and 450 km range

https://electrek.co/2026/03/25/sodium-ion-ev-battery-delivers-11-min-charging-450-km-range/

Sodium-ion EV battery breakthrough delivers 11-min charging and 450 km range

The next generation of electric vehicle batteries is arriving, promising to be more efficient, safer, and lower cost. After another...

Electrek
BYD / Denza z9 gt claim 10-70% in 5 mins, 97% in 9 mins. With a range of ~1000km this seems to crush these results? I don't know enough about this space to know if I am missing something here, but would love to know because something about this feels more exciting than i think i am grasping. anyone know?
The range claims depend on the size of the battery pack. The Denza has a larger pack than what is quoted in the article. Also, the Chinese CLTC range ratings are overly optimistic with 1000km CLTC being ~820km WLTP or ~700km EPA.