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Wow that's nuts too. Expensive car too I bet. Owner must be going crazy.
I bet they can sue somebody
New Batteries For EV's
- Thread starter MrAl
- Start date
I bet they can sue somebody
https://www.dailybreeze.com/2024/09...tery-fire-allowing-seaside-freeway-to-reopen/
47 Freeway reopens after removal of overturned big rig and lithium batteries that caught fire
Firefighters relocated the cargo to a secure location on Terminal Island and removed other hazardous materials affecting the roadway
Wow! They're getting 5 times the energy out of a cell with 5 times the volume.
Nice.
As usual, the folks at InterestingEngineering should not be allowed to write technical articles.
They completely missed the key points, despite actually mentioning many of them, while at the same time completely messing up the conclusions they draw. The article did not make any claim about improving energy density, but that didn't stop them from assuming that 5x capacity means 5x density in their figure caption. Nor do they comprehend that 5x is NOT the same as 500% more.
The key point is not that these batteries will result in any substantial improvement in the range, or in the size and weight of the battery, but that it will reduce the cost of the battery by requiring only about one-fifth the number of cells to construct the battery. The range, size, and weight may or may not go up or down, depending on specifics that aren't even mentioned in the article, but the changes in those will likely be pretty minimal.
Tesla covered all this in 2020 when they announced the new form factor. They claimed 6X more power in 5X more size, so 16% more range. That was just a happy side effect though, compared to the expected cost savings and other technological gains (tabless, better heat control, etc.). They almost gave up on it but seem to have now cracked the nut enough to engage outside suppliers such as Panasonic to meet their cell demand.
That sound almost right. The actual energy density figure is more like a mere 18 percent. That means a older battery pack that could go 350 miles and weight in at 4000 pounds could now go 406 miles and weigh in at around 3600 pounds.
Gee, ain't I just jumping for joy here. Now I can drive another 50 miles. Whoo weee! Time to celebrate, we've finally arrived!!
They must have gotten the technology from aliens!
The battery size is impressive though. 46mm diameter and 80mm long. That's nearly 2 inches in diameter and just over 3 inches long.
Can double for use as fireworks on the Fourth of July.
Hi,
Wow, that's actually a true, demonstrated fact! Going from 350 miles to 400 miles is clearly and unequivocally a 500 percent increase in driving range!
In some other universe, that is, where you can take the increase in mileage and multiply it by 10 and change it to percent
I lust for a flashlight based on one of these.
⌀2" x 3"L is smaller than average.
I learned during this summer's camping trip that a flashlight can definitely be too bright. When I had to head for the potty during the middle of the night, I grabbed my trusty flashlight and climbed out of the tent. Once I hit the campground's dirt road, I clicked on the light and immediately shut it off. It was WAY too bright to use politely in a busy campground. I made do with moonlight.
That would be a funny prank ... installing a sound sensor in a flashlight to make it flash every time you farted ...
What is average.
The '2' in "2 inch diameter" strikes me as pretty big, but I guess 3 inches is not too bad (I think it's 3.15 inches). An 18650 is smaller, and so is a 26650 being only 1 inch in diameter and 2.5 inches long.
These days you can get 3 mode flashlights online in several places, and even some that you can program each mode brightness. Programming means you can set level 1 to dim or just a little dim or very dim for example.
There are also flashlights that have what we call a "moon" mode which is very dim but enough for some things.
Hi,
I recently got one that takes a 26650 and that light is plenty big enough for me. Something like 10000 lumens.
I also have a rather fat light that takes four 18650 cells but that's a little too big to carry around. About he size and shape of a beer can. It's 7000 lumens.
Both of these lights light up the back yard like daytime. It's amazing how far flashlights have come in the past 20 years.
In the US, about 5.6"L and 4.8" in circumference.
Hi,
That's average? Is there even such a thing as an average sized battery
That one is 5.6 inches long apparently, but it's diameter is only around 1.5 inches. Can't figure out why you would want to call that average. You can call it that though if you like no problem here just curious
There's even an "average global temperature" if you squint your eyes and tilt your head slightly to the right.Is there even such a thing as an average sized battery
Hi,
Yeah but the number of measurements would be finite and countable. I can't imagine anyone trying to sum the sizes of all the batteries in the world and coming up with an average value. I can't imagine anyone trying to sum up even the lengths of all knives in the world and trying to come up with an average length even though that also only involves one dimension.
What I could easily imagine is if someone had a collection of knives and they wanted to figure out the average length of their collection for some reason. That would constitute a finite and countable collection.
If they had a collection of batteries however, I am not sure why they might want to calculate an average volume or average length or width. If they are all the same model, they may want to calculate the average price though and then figure out which ones were above that price and which ones below. That would show something useful to a point.
Maybe it would help to know the average volume if they wanted to buy a container for them all, but that could lead to a gross error with some batteries being much different in size than others.
On the other hand, if they do not have any batteries then the average is zero, unless of course they want to calculate the average volume of all the batteries they DON'T have
