As reported by CBS News, at least two Teslas caught fire in Florida after being submerged in saltwater during the flooding that accompanied Hurricane Idalia. One of...
Teslas are bursting into flames in Florida after being flooded during Hurricane Idalia | Saltwater and lithium-ion batteries are a bad combination::undefined
Depends how well the battery is packaged. Here's a cheap disposable AA lithium battery dropped in a bowl of water - it bursts into flames almost instantly:
However they had to disassemble that battery. If you just dropped the undamaged battery in the water nothing would've happened.
So - this really is Tesla's fault. They should be wrapping a water tight barrier around the batteries. It's one thing for a battery to catch fire after a serious crash. Fair enough. But it shouldn't happen in floodwater.
The problem isn't really about the water getting things wet, more about the salt in it adding conductivity that can corrode metals making holes and also shorting any exposed electronics.
As much as I dislike tesla and it's unnerving ubiquity along with being under an unstable leader, we have to remember... These are land vehicles, not submarines. They weren't designed for prolonged immersion in salt water. Most of the environmental testing very likely revolved around using chambers to simulate different weather patterns.
Pressure and immersion testing are generally used only for individual components that do get sealed, permanently. So if you were to seal the battery pack or even just sections, you would still need to connect it all to the electronics like the BMS and in/output. With enough time just these two points could allow a path to short the battery causing the cells to overheat, expand, crack any seals (further increasing the reaction), build enough pressure and eventually pop like a shotgun shells fired outside of a barrel
One of the YouTubers I watch, Tavarish, is rebuilding a flooded McClaren. McClaren went to great lengths to water proof the car (IIRC almost all the connectors for the electrical harness and many of the other cables/wires in the car were all fine). The car is an engineering marvel and it still had damage done to the battery and almost every inch of the car had water intrusion.
Not disagreeing with you but salt water tends to fuck shit up. Maybe a better solution is some kind of system with a series of sensors and other inputs that could disable the battery until it's checked out? Or maybe better education on how dangerous lithium batteries can be.
Yeah definitely, I remember sailing in the ocean when I was in Sea Scouts and one of our leaders had his battery let out the magic smoke on his phone, no lithium fire luckily
Side note - people need to be super careful buying used cars for the next several months because of scammers cleaning up flooded cars and brining them north to sell. Check under the carpets and so on, etc. Avoid Florida cars.
I looked at this awhile ago. There is a google doc maintained by some anti-Tesla investors who track every fire that can find. It is still much lower than the US average fires per car.
I think it gets more attention because:
some people are financially incentivized and;
battery fires really are a much worse deal than a normal car fire
The advice I’ve been given (on train/bus batteries) is to shove the vehicle if safe when it starts; then do whatever possible to fully submerge in fresh water. Obviously that isn’t really feasible.
You asked a lot of questions that you didn't know the answer to. A good journalist would have attempted to answer most of those questions in the article. Seeing how these questions weren't answered, it's safe to say this was a clickbait article written by a trash journalist.
Only the cybertruck I think, but in the end neither will be able to so it doesnt matter. I work with tesla and will never even consider buying one, even apart from all the stuff muskrat is doing.
I figured people would have stopped considering one when it came out that Tesla employees made memes out of Tesla drivers as apparently they've been spying on people via the cameras on the car. Which isn't enough that they did that, but they were encouraged to share the memes around the office.
Idk man, and the fact people suggest tweeting (or x-ing) Elon if you run into difficulties with the Tesla stores (such as warranty). I find it insane. That's if you separate Elon from the brand Tesla, but if you don't it's all the more. He is a highly vindictive, self-centred ego fuelled bag of lies which is a personal reason I don't like Tesla.
They are likely IP rated in some form or fashion, that means they are rated for protection for a period of time at a certain depth. Deeper water or longer time in water means you still get water past the seals.
It could also be a control fault or short on the electrical side allowing the other components to catch fire or overloading the batteries causing them to overheat and catch fire.
Water ingress can happen where cables plug into places - literally like a straw that draws water towards the battery pack. Again, if properly sealed, this should not be an issue.
But I can't imagine any modern vehicle surviving being flooded by saltwater. If not the battery then any other electrical component, or even the motor, would corrode over the coming days, weeks, months.
If previous incidents are anything to go by, most batteries that actually react that way are physically damaged during the Hurricane part. Usually the teslas are fine even completely submerged.
I’d be surprised if there weren’t some kind of guidelines already but once we see EVs on the road 25-30 years old held together with duct tape things might get interesting.
Does this have anything to worry consumers about in cold climates where cars could accumulate snow and road salt on them, and then say - park the car in the garage where it all melts into salt water?
Did any other makes of electric vehicles also burst into flames in Florida?
You're not going to have frozen salt water on the underside of a car. That's kind of what the salt is for. You will get salt water eating at the metal.
Ever seen a 30 year old car from where it snows a lot? They have rust holes that eat clean through the floor. We don’t have EVs that old yet but I seriously wonder how big of a problem that might be, as the salt will eat through the battery tray at a certain point. Especially for some of the budget EVs like the Bolt.