VincentWolf
Incredible if true and not vaporware.
Leonard Foster Jr
If this tech is true and has a vast cycle life it means Game over Tesla and even some fossil fuel Mfg .
SimonClarke
Just like the other two comments this is incredible. Even if the final product is only half as good it will still be incredible.
noahvail
Amazing if it's accurate. I just hope this isn't a case of the company name being short for TooGOODtobetrue.
Dalong
How long do these car batteries keep a charge if not used, how much do they cost and how much do they weigh? Sounds like they may be good for camping or other applications where a generator is typically used. Nice quiet portable power sounds like a cool thing.
MarcJackson
Australian Nanode by Nano Nouvelle exceeded this C rating, charge discharge efficiency a few years ago. It's the energy density that needs increasing and Nanode achieved this also. Hybrids still needed until greater energy density, nowhere do they show this figure.
Simon Redford
So if we assume 500km at 0.2kWh/km, that’s 100kWh and it gets charged to 80% - 80kWh. Taking the headline figure, a charge to 80% in 4 minutes and 40 seconds (280 seconds) gives an average charge rate of just over 1 MW – That would be amazing if it is true!
The test figures are far from clear, but seem to suggest two phases, with one at 19A for 4 minutes and 50 seconds, followed by one at 190A for 8 minutes and 8 seconds – 13 minutes to full charge of ~100kWh, giving an average charging power of 462kW – still a lot of power and therefore some serious voltages and/or large currents.
As for the fast garage charge, given that most homes have no more than 100 amp 230V single-phase supply (realistically 20kW max) this implies a large battery in the garage which is charged from the mains supply over 7 or more hours and then transfers its charge to the car battery. Lot of batteries!
There’s a lot that needs properly explaining/correcting in this announcement.
guzmanchinky
Completely inevitable. Once you have a 5 minute battery kiss the gasoline engine goodbye. And no home charger needed at that point, just have Chevron and Shell change some filling stations into charging stations.
jerryd
First off the cells have been around for 15 yrs that can do this. They use them in hybrids that normally do this proportionally day in and day out. My Volt modules will do it too at 16c with room to spare as you only need 12c. Other cells do 30c. Next the cost of such high peak demand from the grid even with storage makes it too costly. The BoS is much heavier. Smart is charging in 12 minutes instead cuts power need 60% is actually viable.
paul314
A quick back of the envelope says that they need about 1000 of the battery pouches they tested. And unless they have some interesting cooling or battery geometry, the middle cells are going to be way more than 10 degrees above ambient temperature.