Cheaper yes. Non-aqueous sodium ion batteries (which are most of them) are more dangerous than LiFePO4 though.

In what way, if you don't mind me asking?

	▲	margalabargala 3 hours ago \| parent [-]
		In the way that they are more likely to catch fire or explode or undergo thermal runaway. https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.20... https://www.sciencedirect.com/science/article/abs/pii/S20954...