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Lithium iron phosphate prices have been dropping recently. They are now cheaper than lithium ion. I think they are cheaper even considering the lower density. I
by ianburrell 2y ago
Lithium iron phosphate prices have been dropping recently. They are now cheaper than lithium ion. I think they are cheaper even considering the lower density. I think they are cheaper than lead-acid when consider the lead-acid lifespan and usable capacity.
- wkat4242 2y agoIt depends, standby lead acid batteries are really cheap. Cyclic use lead acid is much more expensive. And also a much better comparison to lithium phosphate because it can also handle cyclic. But these are not what's used in a UPS because of the usecase. If your target is really backup power for that once a year max power outage, lead acid still rules. I believe this is why it was exempted from RoHS. And the lead can be recycled well.
- WorldMaker 2y agoLead acid can be recycled "well", but a problem is that it must be recycled, being toxic, a fire hazard, and even possibly a toxic fire hazard when handled wrong. (Sometimes even when handled right.) That seems like a good reason to avoid lead acid batteries in home appliances, personally.