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IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3156 |
This is quite a good balanced article from a reliable source about EV Fire Risks.
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11th Oct 2023 6:52 pm |
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Nodge68 Member Since: 15 Jul 2020 Location: Newquay Posts: 2082 |
This is a fairly balanced article, however it only concentrated on NMC (nickel manganese cobalt) lithium batteries. There is a much safer chemistry which many manufacturers are switching too called lithium iron phosphate or LifePO4, often referred to as LFP by manufacturers. LFP lithium batteries don't contain cobalt for a start, which is one of the main reasons that anti-EV people say EVs are bad, as the cobalt is minded by children in poor countries. The fact that the fossil fuel industry also uses cobalt to remove sulfur from the oil seems to be forgotten in this statement. So LFP batteries don't contain cobalt (no child labour issues), but they also don't contain a flammable electrolyte. The organic electrolyte used in NMC is basically alcohol, which burns with an almost invisible and extremely high temperature flame, which is where lots of the energy comes from to start a chemical reaction within the cells. It's this chemical reaction that produces oxygen and hydrogen, giving the self-sustaining burn until the fuel is gone, or sufficient heat can be removed to stop the chemical reaction taking place. LFP don't have these issues, as the electrolyte isn't flammable, it's a type of brine or salty water (the actual chemical composition varies depending on the manufacturer), which doesn't burn, even if the battery is actually in a fire. All that happens when an LFP battery is damaged, is it'll warm up due to short circuit inside the cells, which produces steam that escapes from a special safety vent in the cells themselves. The escape of steam (and chemicals) takes heat away with it, cooling a damaged cell and eliminating the chance of thermal runaway almost to nothing. Hyundai Ioniq 5 Ultimate. The family car. 2009 Rimini Red SE TD4. Gone. 2006 Tonga Green i6 HSE. Gone. Audi A5 convertible, my daily driver. 1972 Hillman Avenger GT, the project. |
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11th Oct 2023 7:39 pm |
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IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3156 |
Thanks Nodge for the reassurance that safer EVs are on the way.
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12th Oct 2023 8:32 am |
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SYFL2 Member Since: 16 Jun 2012 Location: Sheffield Posts: 2597 |
I’m getting irritated about the choice of words the news are using I heard yesterday the fire was started by a lithium battery in a diesel car,that’s an EV and it wasn’t the diesel that spontaneously combusted it was the battery. Few weeks ago when those migrants were put on the barge Sky News woman said the migrants have started arriving on lorries. I turned over to another channel and they had film of them arriving in luxury air conditioned coaches with a big TV in the front. |
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12th Oct 2023 8:46 am |
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BossBob Member Since: 30 Sep 2010 Location: Bristol Posts: 1402 |
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12th Oct 2023 9:04 am |
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SYFL2 Member Since: 16 Jun 2012 Location: Sheffield Posts: 2597 |
I wonder how long before public car parks ban them or home insurance is void if you park one in your garage and the house goes up ? |
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12th Oct 2023 9:59 am |
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BossBob Member Since: 30 Sep 2010 Location: Bristol Posts: 1402 |
There are more problems with cheap and possibly poorly maintained batteries in scooters and electric bikes that are taken indoors, even into blocks of flats and charged in access ways. There have already been deaths as a result of the fires caused. |
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12th Oct 2023 10:22 am |
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Just a driver Member Since: 29 Nov 2021 Location: Norfolk Posts: 428 |
There will be problems etc with electric cars and there’s going to be people and media going on about etc etc. Then when they lower the prices it will all be forgotten, goes on all the time with products and buisness. Money soon alters people’s views. |
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13th Oct 2023 1:17 pm |
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tenet Member Since: 23 Jul 2009 Location: cotswolds Posts: 1081 |
Came across this video:
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13th Oct 2023 2:21 pm |
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jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 5062 |
The Luton edition RR - two tone - orange with charcoal grey on top - goes like a rocket apparently Jules |
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13th Oct 2023 6:15 pm |
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Dave47 Member Since: 31 Aug 2014 Location: Margate Kent Posts: 1333 |
I see on the news this week, some insurance companies
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13th Oct 2023 7:11 pm |
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Nodge68 Member Since: 15 Jul 2020 Location: Newquay Posts: 2082 |
I know several people at work with EVs, and all have no issues with insurance. However a friend of mine has a Tesla as a company car, which apparently is very expensive or impossible to insure as in individual. It's Tesla that have limited parts supply, and won't allow anyone but Tesla approved repairers to work on them, which is why the repair costs are so high. I've heard a rumour that Tesla deliberately over quote the repairs, so the insurance writes the vehicle off instead, meaning Tesla sell another new one as a replacement. It might be just hearsay, but it does sound plausible to me, especially when I've seen Tesla quote over £20,000 for a replacement battery, which according to Tesla's own figures cost just $130 per kWhr of capacity to manufacture. The figures just don't work when a comparison is made between production cost and parts supply costs, so someone is either making vast profits, or the production cost of the battery is more than Tesla claim it is. Hyundai Ioniq 5 Ultimate. The family car.
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13th Oct 2023 11:49 pm |
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jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 5062 |
Or both Jules |
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14th Oct 2023 7:28 am |
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BossBob Member Since: 30 Sep 2010 Location: Bristol Posts: 1402 |
So that’s how Musk gets to afford to indiscriminately pollute our night sky with his fecking satellites! |
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14th Oct 2023 8:22 am |
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