They 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
The 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.
