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Firms are exploring sodium batteries as an alternative to lithium
(www.economist.com)
This is a most excellent place for technology news and articles.
BYD is supposedly bringing them to production.
https://cleantechnica.com/2023/04/22/the-sodium-ion-battery-is-coming-to-production-cars-this-year/
They are already in production, and sold to consumer, since few days. A french start up is selling an electric screwdriver with a sodium battery.