But what will the working life of such cells be? We know fast charging reduces the life of current EV batteries.
1000 cycles degradation detailed in those graphs, so about 82% capacity after charging from zero to 100% 1000 times, something you’d never do. Most BEVs get charged from 10-30% charge upto 80-90% on rapid chargers, the slower AC charging at home doesn’t heat up & degrade the batteries in the same way & the car slows the charge rate down to the 6 amps minimum 98-100% as it does its balance charge (where all the cells are brought upto the same SoC by supressing individual cell charge using the BMS (battery management system)).
N.B. Most lithium batteries go bad because of BMS faults & engineers underrating the BMS to save money, but in cars they usually try better because of the higher values of such large battery packs.
N.B. 1000 charges is about 1 per week for 20 years, 2 per week for 10 years, etc.
N.B. The easiest way to kill a lithium battery pack is to leave it at zero charge for a few months, it won’t revive again unless you take it all apart & gently shunt some power into each cell from spare charged cells, and you’ll not be doing that as it would take an age without dedicated equipment.