The world we live in today runs on batteries. But the lithium ion batteries that dominate the market are expensive and environmentally demanding to extract. The raw materials for lithium ion batteries are scarce and concentrated in a few geographical regions. This places continued pressure on supply chains.
I am aware sodium batteries exist, this is a mostly sodium, hybrid lithium sodium battery. A new technology, according to them. That’s why I said I’m surprised no one has thought to put those two together specifically.