Sodium ion batteries use sodium ions, like in table salt. They correctly are not named metallic sodium batteries. They are less fire prone than lithium batteries, even in locations containing air.
You should also consider shorting Morton [0]. They sell sodium, combined with chlorine, one of the nastiest elements around! And for products that go in people's homes! On food!
You should also consider shorting Morton [0]. They sell sodium, combined with chlorine, one of the nastiest elements around! And for products that go in people's homes! On food!
[0] https://www.mortonsalt.com/