3 ms·
They claim 80% charge after 50 mins. And they claim over 80% capacity after 800 charge cycles and they estimate that at >350000 km. If true, 80% charge is stil
by laserbeam 4y ago
They claim 80% charge after 50 mins. And they claim over 80% capacity after 800 charge cycles and they estimate that at >350000 km.
If true, 80% charge is still ~50% more range than a fully charged ev today.
Now it remains to be seen if all of this is true.
- xxs 4y agoThey don't tell anything how fast were those 800 charges. No info on the weight (energy density) or the discharge rate, or if it has exotic materials used. No info on the capacity degradation (it won't be linear), either. One fishy quote: They also increase unwanted reactions between the ==electrolyte== and the lithium, speeding up battery failure. How is that solid state, or it's just general info
- sanxiyn 4y agoThey do say 800 cycles were each 1 hour, not 15 minutes.
- xxs 4y agoThe QuantumScape battery charges at blazing speeds, allowing a 0-80% charge in 15 minutes. It can retain more than 80% of its capacity after 800 cycles, which would represent about 240,000 miles (386,000 km) traveled in an electric car. This is the quote. If it's one hour charge, i.e. 1C, lifepo4 batteries do that already.
- sanxiyn 4y agoHave a look at "Battery Showcase" PDF at https://www.quantumscape.com/resources/ https://www.quantumscape.com/resources/ page 20. It clearly says 1C.