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The first EV with a lithium-free sodium battery hits the road in January
(www.engadget.com)
This is a most excellent place for technology news and articles.
'252 km (157 miles) range' to save others the same skimming I did
Id like to add that there are different versions of the car, with the long range version being 302km range, and the battery mass to energy ratio is actually average compared to other batteries.
Also, those ranges are for the sehol branded version, the car in the article might have a different range(although I doubt it) https://www.batterydesign.net/sehol-e10x-sodium-ion/