Quote:
Originally Posted by Piotrsko
Nope, I understand the various chemistry options, and their flammability prospects pretty well
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You're the only one I've ever heard say LiFePO4's are flammable. There are videos online of these types of cells being crushed, punctured, overcharged, overheated, shorted, etc. and, unlike NMC, they don't ever go up in flames at all, ever. What am I missing here?
On the other hand NiMH are considered non-flammable, but I've heard of at least one guy who was able to get them to catch on fire in his Toyota Prius.
EDIT:
So it looks like you're right, that they do have a flammable electrolyte. But according to this article of tests:
Quote:
In general, of all of the lithium-ion cells that were tested, LiFePO4 would be considered the
safest cathode material because of the relatively low temperature rise and the resulting low
likelihood for thermal runaway to propagate.
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https://www.fire.tc.faa.gov/pdf/TC-16-17.pdf