No. A group of about 30-40 cells are connected in parallel. They are then monitored as if they were single larger cell as they all have the same voltage.
Only Tesla and Rivian use small cells. All other EV manufacturers uses large cells typically of 20Ah to 60Ah.
kw
You can't send petrol or propane either.
You are allowed to send lithium batteries when they are inside an electronic device.
kw
A BMW is overpriced s*it, now look at a VW.
I only trim things over 5 levels deep when it's getting ridiculous.
Not what someone else said in here. Or it may have been in the Einstein forum. Everything - AC, extra acceleration, etc, etc can all be switched off at the factory remotely, and is every time it's resold.
So one of those 30-40 cells shorts out, then what? It's getting f****ng hot with the other 29-39 cells rapidly charging it, and there's no sensor on it? The other 29-39 look just fine, all is well, oops driver dead in a fireball.
Why this difference between manufacturers?
Why would that make them any safer? In fact I'd say it's more likely they could short. I bought some 18650 tagged cells in the post, they put them in nice little plastic tubes, no possibility of shorting. They came by Royal Mail, not sure if they had an agreement with them or they just lied about the contents. They do check things that seem odd, like when I sent some aerosol cans in the post, you could hear they were aerosols when you shook the parcel. The bastards "destroyed" them, more likely the workforce took them home and kept them.
In the case of Tesla they implement the bond wire from the cell to the common connection asa fusible link to protect against that eventuality.
I expect Rivian has a similar feature.
What actually happens is that most shorting failures occur within the body of the cell and the short itself gets cleared in a similar fashion to what happens in plastic film capacitors when a breakdown occurs. This would also apply to larger format cells.
Each manufacturer has their own ideas about how to optimize cost, space, weight etc.
Tesla started out by exploiting the fact that 18650 cells were the most common mass production cells. The manufacturing processes and equipment were optimized to make those at lowest cost.
Larger format cells have the potential advantage of less material used to package the cell with a possibility of improving energy to weight ratio.
Tesla cells have gradually been increasing in size while keeping a similar style. The original 18650 has progressed to 2170 and next to 4680. The cell numbering system is the diameter in mm followed by the height in tenths of a mm so an 18650 is 18mm die by 65.0mm tall.
WIth these changes (and others) Tesla claims to have improved cost, energy density and power density and as well as reductions in use of raw materials while expecting greatly improved lifetime.
kw
Tell that to Rochard Hammond.
They used to be cheap until cars started using them, now I have to pay three times as much to power my f****ng torch.
Until something better than Lithium Ion is invented, they just aren't powerful enough for a car. Lithium is for laptops, or maybe a golf cart.
Which would make a 2170 only 21mm wide and 7mm tall. So a coin cell?
And yet they still rip people off with absurdly expensive cars much like Apple rip off people with their overpriced computers. One born every minute.
Electric cars are too expensive as it is. F*ck that I'm using petrol.
Immigration and Customs Enforcement.
Sorry about that, it is common to drop the trailing zero on the larger sizes. A 2170 is 21mm x 70mm, a 4680 is 46mm x 80mm.
It's not a rip off of the customer is willing to pay and consider the price competitive with others in the marketplace.
We can't all be as enlightened as you.
kw
You choice.
kw
And to Ford Explorer owners.
No, it's an In-Circuit Emulator.
Because the f****it that came up with convention thought the length should be 10 times as accurate as the width.
I do like morons that pay over the odds for stuff, it makes second hand stuff cheaper.
I buy the car which cost the least overall. If the cost of buying it is more than the fuel saving, then it was pointless.
Excellent design feature - sound the horn to warn of the fire.
A 4WD powered by batteries? WTF? Way too heavy.
150 isn't much more than 47.
But they still need that Lithium that kills the minors.
Some time back Larkin pointed out, there is a huge amount of energy in the fuel storage of autos. While some people get upset by the 50 to 100 kWh stored in a BEV battery, there are up to TEN times that much energy held in a gas or diesel tank, 1 MWh! Yeah, as much as 400 kg of TNT.
I know they used gasoline to make Napalm. It can be used to make thermobaric weapons and of course, the ubiquitous Molotov cocktail. Great stuff that gasoline!
150 is ~3 times 47 and in that time we can come up with alternates such as below.
Lithium does not kill minors.
You are probably referring to cobalt mining.
Recent chemistry changes for lithium batteries either use less cobalt or in the case of Tesla half of the cars don't use any cobalt at all. Other manufacturers are making similar changes.
Oil mining is not danger free and thousands die in oil extraction and millions due to pollution.
kw
For many people the total cost of ownership of an electric vehicle is significantly less than that of a conventional car - even a mundane Toyota Camry.
kw
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