perching_aix 23 minutes ago
Even the gravimetric density is fairly close, CATL's claim is 350 Wh/kg, compared to Donut's 400 Wh/kg.
The safety and durability (plus no lithium) prospects of Donut's V1 battery are still big though (if the thing is actually real).
tristanj an hour ago
sandworm101 4 minutes ago
Scaling that to something the size of an EV pack will require one massive cable/connector. Call it 5kw/h in 1/60 hours, thats 3000kw, at 700v thats still roughly 4000 amps. (Please correct my head math.) Charging one car could suck up more power than an entire neighbourhood. Say four or five chargers operating at once ... every roadside charging station will need its own substation.
SideburnsOfDoom 12 minutes ago
Does anyone know? Assuming it's not the current high-end spec of 800v? It matters because higher current requires heavier equipment to generate it and heavier cables too.