The catch is lower gravimetric energy density (Wh/kg). But sodium-ion is great for stationary energy storage, where gravimetric energy density doesn’t matter th

The catch is lower gravimetric energy density (Wh/kg). But sodium-ion is great for stationary energy storage, where gravimetric energy density doesn’t matter that much (unlike automotive, aviation, or handheld tools). Disclaimer: I’m a former Northvolter, but not involved in that program.