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Re:Electric vehicle battery capable of 98% charge in less th... by AtlasBarfed on Tuesday June 14, 2022 @12:30AM (#31734762)
That's good news, pending actual pricing when commercially available.

But the real meat of the EV revolution will probably be high density LFP (300-400 range cars) and next-gen sodium ion (200-300 mile cars) which require no nickel or cobalt, or for sodium ion, not even lithium.

This is based on production densities that are supposed to be available in production late this year (LFP) or next year (sodium ion)

Improvements in any sector or aspect is a good thing though. There will be cells needed in dozens of applications, from container ship to bicycle.

Edit: I reached the posting limit, so here is more on the higher density LFP/sodium ion:

230 wh/kg LFP:

https://pushevs.com/2022/03/29/guoxuan-closer-to-mass-produc...

160 wh/kg Sodium ion:

https://www.electronicdesign.com/markets/automotive/article/...

So my napkin math says that the densities listed should enable a 400 mile Tesla model S type car (especially since LFP doesn't need as much cooling and has higher density cell-to-pack), and sodium ion should do about 70% of that, or a 275 mile model S large car. Napkin math is derived from looking at current pack densities in Tesla cars and comparing that with 90% of the cell densities in the above articles (which these should be able to achieve in pack density with cell-to-pack and that these chemistries don't need as much active cooling systems). The current model S from googling seems to be at 186 wh/kg at pack level. 90% CTP 230wh/kg LFP should be 205+ wh/kg!!!

That may also enable large scale 50-70 mile range PHEVs, and even cheaper EV bikes/scooters/lawnmowers/etc. LFP also has better capacity retention,cycle endurance, and temperature endurance typically.

But the Sodium Ion might be the real revolution from a city car perspective for places like China/India where you'd need a billion or more clean city cars. A cheap 100-150 mile sodium ion car is just what these markets need.

Re:Electric vehicle battery capable of 98% charge in less th... by syntheweave on Tuesday June 14, 2022 @03:39AM (#31735892)
I can see sodium ion being the right pick for urban ebike rental. It only needs the range to go one way if it's part of a fleet and has the charge infrastructure built out; the rest is a matter of getting enough AV brains in there to minimize issues surrounding safety, parking, self-charging and availability. Once you add that, the bikes become way more appetizing for consumer use and you can expect usage to explode. Several companies are already working on the AV features - and cost is mostly bottlenecked on the batteries.
Re:Electric vehicle battery capable of 98% charge in less th... by breadloaf on Tuesday June 14, 2022 @05:13AM (#31736435)
Problem with sodium is very limited amount of charging cycles, which is less than 100 at current stage of development.
Re:Electric vehicle battery capable of 98% charge in less th... by AtlasBarfed on Tuesday June 14, 2022 @11:29AM (#31740928)
https://en.wikipedia.org/wiki/Sodium-ion_battery

Uh, look at the table for Cycles 80% discharge.

"hundreds to thousands"

https://pushevs.com/2021/05/28/sodium-ion-batteries-are-comi...

Those seem to indicate 6,000 to 8,000 cycles. But will have to see what the actual numbers are from production, like any battery technology. But I trust numbers from things that are "1 year from production" far better than the "prototype with production in 5-10 years" like solid state batteries seem stuck in.

And we need the scaling NOW. Actually we needed it 10-30 years ago. I wonder if, like solar cells, if we had good government research and subsidies in the 1960s where we would be with solar cells, wind, and battery. Especially wind, it's not like wind farms needed nanotech-scale chemistry and manufacturing.

Re:Electric vehicle battery capable of 98% charge in less th... by krasin on Tuesday June 14, 2022 @12:40AM (#31734805)
High-density LFP sounds amazing. Where can I read more about it?
Re:Electric vehicle battery capable of 98% charge in less th... by BobLaw on Tuesday June 14, 2022 @01:00AM (#31734922)
Not so much high-density as much as highER density.

https://www.autoevolution.com/news/lfp-cells-are-getting-mor...