Quote:
Originally Posted by senormechanico
Look up youtube videos of people putting a dead short on lithium iron phosphate (LiFePo4) cells with jumper cables, shooting them with a .45 etc.
Vapor, no fire.
Lithium COBALT, different story (Boeing Dreamliner). |
[Edit]
Sorry I misread your post previously. I thought you were speaking of generic or standard Lithium ION, but you meant Lithium Iron phosphate, which are indeed much safer than Generic of standard LI ION. With regard to the latter: overcharging lithium ion batteries can cause them to explode like a POWERFUL BOMB> this has happened to me with a Li Ion for a dive light, a bit bigger than a D cell. Faulty
charger from
China caused it suddenly to explode like a grenade. After the initial violent explosion with flames, it filled the
boat with black smoke and soot, and even though I hit it with a CO2 within 3 seconds, it burned 7 deep black marks through the
varnish, charring the veneer to destruction below!
In three seconds.
My understanding is they must be charged with an ever decreasing
current strictly regulated, which if off even by a small amount can cause them to overheat and boil (yes I said boil), and cause a chain reaction which results EXTREMELY RAPIDLY in a sudden and violent and extremely HOT explosion. Of course this means charge failure is likely the cause… but charge
regulator failure is not unheard of and indeed not all that uncommon in my experience.
For this reason I would not wish to have standard LI ION batteries in a main bank on my
boat.
Why Some Lithium-Ion Batteries Explode
Linear Mode
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