Na-Ion can be a lot less expensive. But it’s a lot heavier. (Not a problem for grid-storage.)
Most likely because the news is in English. And why would Natrium be better on an international forum?
It is Sodium in most Latin languages (despite Natrium being Latin), in Hindi and in Arabic. And Chinese has a different root. Among the 10 most spoken languages (according to Wikipedia), only Russian is using Natrium.
As a native English speaker, I don’t think I’ve ever heard someone call NaCl just “Sodium”, it’s always called “Sodium Chloride”.
I’m a PhD candidate in chemistry. I’ve never once seen sodium refer to the salt, sodium chloride. Sodium is the metallic form or the atom.
However, why sodium, tungsten, lead, antimony, tin, silver, gold, mercury, iron, and potassium and not their Latin forms? Natrium, wolfram, plumbum, stibium, stannum, argentum, aurum, hydrargyrum, Ferrum and kalium? I don’t really know. Mostly it’s just fun trivia for me to tell the undergrads.
