Flood Hearth Threat With EVs — At Least Some EV Packs Want Higher Water Sealing – CleanTechnica – Uplaza

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Within the wake of the current hurricane that swept Florida after which went and wrecked decrease Appalachia, I got here throughout an fascinating social media publish from native authorities officers in Pinellas County, Florida. In it, we see the uncomfortable and harmful dying of a Tesla:

When salt water received contained in the Tesla’s storage, it flooded the car. This didn’t initially trigger main issues, because the car’s low-slung battery pack is inside a particular compartment that’s meant to maintain the water out of it. However, given sufficient time, the water managed to seek out its strategy to the battery cells. As a result of the water had salt in it, it was conductive. This shorted out the cells, inflicting a series response of awfulness and fireplace.

When this occurred throughout Hurricane Ian, I didn’t suppose it was a professional downside. In spite of everything, we had been assured by Tesla that the battery packs are waterproof. Elon Musk even stated that they might function a ship in a pinch. We’ve seen tons and plenty of movies the place Teslas and different EVs ford deep water and get by way of when different automobiles stall out and flood. So, it didn’t make sense that water would get within the pack, and we thought that Florida officers had been mendacity.

However, it seems that they weren’t, and it seems that it retains occurring. Given sufficient time, a Tesla (and probably another EV manufacturers) will embrace that “salt life” after which find yourself in salt dying.

What’s not clear is whether or not that is an industry-wide subject or one thing restricted to sure makes/fashions. All the trendy EV period media studies I may discover talked about a Tesla car, and generally e-bikes and electrical scooters. Going additional again, some early trendy EVs and PHEVs from Fisker and Toyota caught fireplace after Hurricane Sandy in 2012. We’ve to remember that Teslas are the most well-liked EV in america right now by far and that e-bikes and scooters are much more well-liked. So, it’s not clear whether or not these automobiles are extra weak than others or if they simply come up in studies due to sheer numbers.

All EVs Ought to Be Waterproof

Right here’s the factor: that is unacceptable. Most significantly, lives are put in danger by battery packs that may’t spend just a few days flooded with out turning into a scorching mess. Folks evacuating ought to have the ability to repair up their houses, not come again to a home that first flooded after which burnt. If sufficient folks purchase EVs, this might change into frighteningly frequent after a hurricane. That is additionally horrible for the entire EV {industry}, because it helps cement the false concept that EVs are typically an even bigger fireplace danger than combustion automobiles, which they aren’t.

The answer is fairly easy. EV producers must have some delight of their work and ensure each EV that leaves the manufacturing facility can deal with immersion for lengthy durations with out going up in flames. This would possibly require some higher sealing the place the pack closes up. It’s undoubtedly going to require higher examine valves that maintain stress from build up contained in the pack because of temperature shifts, and so forth.

This would possibly sound like a ridiculous demand to some, however we have now to remember that there are various different merchandise on the market that may deal with water for lengthy durations. Telephones with an IP68 ranking are available available on the market, and there’s no cause that car battery packs can’t be constructed to an identical normal. I’d suggest that an EV ought to have the ability to face up to immersion in as much as 10 ft of water for every week with out water intrusion into the pack.

Featured picture: a screenshot from the Pinellas County tweet above (truthful use).