It would be so much easier to stack 50 of them in a 'pile' for 100volts, without the electrolyte leaking around and shorting it all out.
The 60C optimal operating range is probably something that still needs to be addressed
Double the current ranges would be ample to eradicate range anxiety and make EVs useful in most all situations.
The 60C optimal operating range is probably something that still needs to be addressed
That was not an "optimal" operating range, but simply the temperature where they tested it. Presumably because elevated temperatures cause faster wear.
1) does the battery hold for more than 300 cycles, and how much more, and for how long?
A battery for electric vehicles should last on the order of 2500-5000 cycles to be viable.
Presumably because elevated temperatures cause faster wear.
How can you say that 300 cycles is the limit or that it will need no less than 60°?
If that value is somewhre in the 150k-200k range then that's OK because most cars don't last that long.
This is something I learned reading/writing papers: Anything not explicitly stated in the paper should notbe inferred.
If they wanted to show worst case scenarios they'd have gone to freezing temperatures or excessively high temperatures.
Golf GTi in a good condition can still sell for €10.000 after 200.000 km
After 200k km no car is in 'good condition'.
... Point being: That's what they have measured. ...
[Eikka]What is alarming though is that the capacity of the battery falls so dramatically even with 1/10 C discharge rates, which means that it really doesn't like to be charged or discharged quickly. At that rate, an 85 kWh battery pack can deliver only 8.5 kW (12 HP) of power which makes it really unsuitable for electric vehicles.That's what I was wondering about. Looks like a great battery for energy density, but not that great for power density. And it will still take a long long time to charge, compared to pumping gasoline into a car. Sounds great for small scale stuff, though.
I like the fact that this has been developed by a government lab, meaning no patent gouging.
..........
except that this will likely be quickly picked up by the Chinese.
After 200k km no car is in 'good condition'.My wife's last vehicle went over 150K miles (~241k km) before my older son totaled it. My last 2 vehicles both went over 200K miles (~322k km). The first one I gave to charity as it needed a new AC compressor and I was ready for a new car, I gave the second car to my younger kid to drive to school and around town after I bought another new one. While neither of those 200K mile cars would qualify for the "good condition" rating, they both have good powertrains and suspensions and are reliable transportation. When I was poor, vehicles like these were top notch compared to what I was driving. I think EVs with improved range and battery life is a great step, however, the poor depend upon a supply of reliable older cars that can be repaired with minimal cost. Hopefully, this battery tech can reduce the cost so that we don't leave the poor without a source of reliable used cars that are affordable to repair.
The lab is applying for a patent. They will then license the technology. The manufacturers who license the technology will be able to sell to a non-free market, where those without a license are not able to compete.
It's business as usual in America, where monopolists always get a helping hand from government.
The lab is applying for a patent. They will then license the technology. The manufacturers who license the technology will be able to sell to a non-free market, where those without a license are not able to compete.
It's business as usual in America, where monopolists always get a helping hand from government.
I have a 1993 Ford Escort, 160 000 Km, I can sell it to you for 10 000 € !
The point is that AntiAlias thinks any car that's gone over 150...200 000 km is totally worthless,
Your gerabox has wear and tear. Your motor has wear and tear. The friggin seats have wear and tear. And unless you invest 5-6k into replacements you're not going to sell it for 10k. No way no how.
what I said was that no car is in prime condition after 200k km.
After 200k km no car is in 'good condition'.
Shakescene21
Jun 5, 2013