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