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Nov 24, 2018 19:31:04 GMT
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Nov 24, 2018 19:49:21 GMT
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Well not really. He says there was no electronics hooked up to the batteries and in a previous video he says it has a dumb charger, not the one that works with those cells. Only Rich and the guys at that shop will have an idea as to what happened. 18650's don't just spontaneously explode. If they did, every power tool and laptop would be at risk.
This is why petrol vehicles are a dangerous and stupid idea :
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Last Edit: Nov 24, 2018 19:51:41 GMT by Soopahfly
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kabman
Part of things
Posts: 348 
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Nov 24, 2018 19:58:53 GMT
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Really? Dangerous and stupid? Well, possibly.....If you've removed the BMS, protective casing and thermal management system from the battery packs and shoved them in a plywood clown car. Here, have a pic of a dangerous and stupid car for your trouble  |
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Nov 24, 2018 20:31:05 GMT
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All that video shows is a woeful lack of understanding about HV batteries. The dangerous and stupid bit is thinking that such a runaway can be tamed with a handheld fire extinguisher. No-one should even think of going anywhere near the cocktail of corrosive and toxic gases pouring out of the cells.
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- '80 Mk1 Vauxhall Cavalier Saloon, 3.0l 12v... in progress with some special plans ahead
- '94 106 Rallye, Endurance Rally Car
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mylittletony
Posted a lot
Posts: 2,347
Club RR Member Number: 84
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Nov 26, 2018 10:03:55 GMT
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This thread should be titled "This is why playing with electric cars when you don't know what you're doing is a dangerous stupid idea"
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Nov 26, 2018 11:40:14 GMT
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jaw dropping video regardless, in a kind of scary chemical fire kind of way.
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Nov 26, 2018 12:36:48 GMT
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Theres only one stupid thing on this thread
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Nov 26, 2018 20:43:43 GMT
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Dangerous and stupid makes things more fun.
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Nov 26, 2018 22:03:16 GMT
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I attended a technical lecture recently on battery chemistry and charging, and what goes wrong and how easily this can happen...
He brought on some of these type of batteries and we examined them. They has been sat to discharge for a year to make safe. 150° runaway temperature is very low, and charging them wrongly or some mucking around and it's a ticking time bomb.
You see what happens when those Samsung Galaxy Note phones were exploding in people's pockets, image that multiplied by 1000 times the number of cells...
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Nov 26, 2018 22:32:16 GMT
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I think that, like it or not, electric vehicles are what most of the automotive industry is concentrating on. Trouble is, they have a "Green" Tag which makes them much more desirable, yet the power has to come from somewhere, and wind and solar power is only a tiny part of where the electricity comes from. Mostly it's gas, nuclear and to a lesser extent, coal, none of which are particularly kind to the environment. Whatever the alternative to fossil fuels, there will be a knock on effect in a different part of the world. Hydrogen is plentiful, but turning it into a fuel that can be used is very expensive. Battery technology is coming on and quickly, because it's what the big companies want to do. Is it really that more dangerous than IC engines? Only because we aren't used to it. In ten years it'll be old hat and guys like us may well be starting to tune them. As for the electric market, some things look exciting, and have potential. It won't be long before tuners start modifying (safely) but I'm not entirely sure that increasing speed would be necessary, especially in this case... www.topgear.com/car-news/electric/rivian-r1t-new-electric-truck-will-do-0-60mph-30s?fbclid=IwAR3ZaK-h2AhO6PtCfcgP_dY1fqvmm2r_joQ4x-99qMlXn6RZB-LOoDmib5U |
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Darkspeed
Club Retro Rides Member
Posts: 4,705
Club RR Member Number: 39
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Nov 27, 2018 21:05:28 GMT
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and wind and solar power is only a tiny part of where the electricity comes from. It's not really as tiny as you think. We produce 30% of UK annual electrical production by renewables - and this summer we peaked at renewable energy providing over 50% of our electricity requirement for the first time.  And growing all the time and we need it to - over half of our gas is imported now as our North sea production has dropped. I respect of what is possible - Norway and Denmark show the way. However for high power automotive traction systems it's not the sort of thing to be played around with unless you really know what you are doing. |
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Last Edit: Nov 27, 2018 21:29:20 GMT by Darkspeed
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Nov 27, 2018 21:39:45 GMT
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If only an electric motor sounded like a lazy V8, or a straight four sucking on twin 40's, or a quad cam howl, or anything to stir the soul. In fact, anything.
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74 Mk1 Escort 1360, 1971 Vauxhall Victor SL2000 Estate.
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Because petrol has never caught fire.
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Nov 28, 2018 16:00:03 GMT
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Because petrol has never caught fire. Imagine if the development had gone the other way and we'd all been driving electric cars for 100 years. We'd be hooked on that whirring noise and would probably be horrified at the prospect of noisy V8s and being asked to carry ten gallons of potentially explosive liquid with us. |
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Jaguar S-Type 3.0 SE
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Nov 28, 2018 16:03:49 GMT
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Because petrol has never caught fire. Imagine if the development had gone the other way and we'd all been driving electric cars for 100 years. We'd be hooked on that whirring noise and would probably be horrified at the prospect of noisy V8s and being asked to carry ten gallons of potentially explosive liquid with us. What a depressing thought.  |
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Nov 28, 2018 21:51:43 GMT
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and wind and solar power is only a tiny part of where the electricity comes from. It's not really as tiny as you think. We produce 30% of UK annual electrical production by renewables - and this summer we peaked at renewable energy providing over 50% of our electricity requirement for the first time. And growing all the time and we need it to - over half of our gas is imported now as our North sea production has dropped. I respect of what is possible - Norway and Denmark show the way. However for high power automotive traction systems it's not the sort of thing to be played around with unless you really know what you are doing. This actually surprised me - and in a good way. The report I read (admitted last year) claimed that renewable electricity was about 19%. However, it's obviously a constantly changing variable. I have never understood why more renewable electricity isn't produced by harnessing tidal energy as it is a constant - I guess that making the equipment to do so is prohibitively expensive, dangerous and not particularly effective. Either that or the windfarms vs tide turbines is a bit like VHS vs Betamax... |
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Nov 28, 2018 22:13:38 GMT
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I think if you look up the 2018 figures its swaying even further towards renewables, I so believe there were some daya were no coal at all was used.
Also the Scandinavians are starting to use offshore floating wind turbines to run their oil rigs, instead of massive diesel generators, which is actually a massive step forwards as the generation of fossil fuel is far dirtier than any road vehicle using the stuff, shipping is a big dirty industry, and I have yet to hear anything about cleaning that up.
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Nov 28, 2018 22:27:00 GMT
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If only an electric motor sounded like a lazy V8, or a straight four sucking on twin 40's, or a quad cam howl, or anything to stir the soul. In fact, anything. TBH I’m not an EV fan, but a mate of mine has an i8 BM. He took me a spin in it, mental quick, but the noise..... epic. I sat there dumbstruck by the power & then eventually said, wow that sounds awesome. Not real he says, comes through the speakers in the car. Apparently same deal outside for the onlookers & you can turn it up/down/off. Yes, I know, I know, it’s not the same you say (& I agree) but it did make me think. You really would not have known |
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Nov 28, 2018 22:37:02 GMT
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It was poor management of charging the cells that did it. Overcharging the cells, 18650 lithium cells cant handle anymore than 4.2V safely. You can overcharge slightly if you know what your doing and keep an eye. Maybe to 4.35V
Just pretty ********* stupid if you ask me leaving it running on a non managed charger.
I would suggest it was a stunt for Rich Rebuilds EV garage hes trying to raise money to start up. But that would be pretty stupid...
Proper cars from real manufacturers have systems in place so this isn't possible in a Tesla (Where these batteries came from)
Electric cars are the future, stop complaining and get with the program.
Am i going to still drive petrol powered cars? Hell yeah, but ive been waiting for battery tech to get cheaper to build a retro EV myself for a reasonable price.
Nuclear energy is actually pretty clean. Its just public opinion on the subject that stops more plants being built.
I think we have it down enough to not worry about another Chernobyl these days
If every Office/Warehouse even houses had solar panels ontop, we would be golden.
And there's even the talk about solar paneled roads, imagine how much energy that could product for the cars traveling on it.
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1973 MK1 2600 Capri - Located in Texas
1976 3.0S Capri - X-Pack long term Project
1978 2.0S Capri
1984 Transit County MK2 4x4 LWB 2.5DI
1985 2.8i Special Capri (v8 5.0L)
1986 2.8i Special Capri
1987 280 Turbo Technics Capri
1993 1.8TD P100 - Beater, parts collector
2008 BMW 320i Touring - Daily
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