Worried if LFP/LiFePO4 chemistry is safe? (hint, it is)

DigitalCorpus

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I came across the GWL video at the end of September to see if there were noted differences in chemistries and their general safety. Granted the video is about 3 years old, but though fire is bad, knowing how much effort it takes to cause ignition is very very informative.

So, here is lithium polymer, LTO, and LiFePO4/LFP in a variety of failure modes:

And here is a LiFePO4 pouch cell subjected to [some] physical torture:

All in all, even though you shouldn't just believe that this chemistry is safe just because someone says it is, the history demonstrates it is safe. LFP/LiFePO4 is good chemistry and stable enough to stand up to excessive abuse and won't likely subject things to a die in a fire meme.
 
LFP batteries are truly amazing and virtually indestructible. According to the video below, the only thing that can really destroy them is keeping them completely discharged for an extended period of time.

This is probably why the Dedicated Dash Cam Batteries sometimes don't deliver the lifespan they promise: probably often left discharged over the weekend due to their low capacity.

 
That is a possibility for sure, though methinks older dash cams are far more efficacious in power consumption such that most users are bot getting their packs that low, but that’s extremely speculative.

Many many regions these are used in get to the sub-zero temps so I would estimate this is a source of degredation too, though this seems to affrct capacity more than safety. Still speculative, imo.
 
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