That's off. A typical new EV gets ~250 miles of real world range on a full charge and has a battery with very similar chemistry[1] to what you have in your phone. So over a putative 200k mile lifetime, it's going to see about 800 cycles (2e5/250) of battery usage.
800 cycles is about what a typical mobile phone sees in two years, after which most are seeing some moderate degradation (70% of new condition is fairly typical) but are still quite usable. And in fact a car spends much more of its time being recharged well before reaching full discharge (where consumer electronics runs dead a lot), so it would be expected to do somewhat better.
It's not really a problem, basically.
[1] Though we're seeing an increasing number of vehicles delivered with LiFePO4 cells. This chemistry has somewhat lower energy density and higher internal resistance, but has the advantage of an estimaged hundreds of thousands of cycles lifetime. Those will never wear out until long after the mechanical parts are dust.
These new cells give the possibility of being recycled and rebuilt into a few cars in a row. Would be great for the single most expensive component of an electric car to be used over, maybe dropping performance/cost class as they go.
800 cycles is about what a typical mobile phone sees in two years, after which most are seeing some moderate degradation (70% of new condition is fairly typical) but are still quite usable. And in fact a car spends much more of its time being recharged well before reaching full discharge (where consumer electronics runs dead a lot), so it would be expected to do somewhat better.
It's not really a problem, basically.
[1] Though we're seeing an increasing number of vehicles delivered with LiFePO4 cells. This chemistry has somewhat lower energy density and higher internal resistance, but has the advantage of an estimaged hundreds of thousands of cycles lifetime. Those will never wear out until long after the mechanical parts are dust.