It’s true, but no manufacturer publishes exact numbers on this, so people end up not caring too much. With batteries that last a million miles anyway (and an 8 year guarantee on that), it’s easy to tell yourself that you’ll never drive as much anyway.
Energy price OTOH is the biggest motivator for many to charge at home. I think the higher price on fast charging will be important for flattening peak energy draws. Stations will need to purchase buffer batteries anyway to keep their own prices down (surge pricing is a thing for them too), which should keep fast charging expensive for a while.
Or is that a best-case spec using slow overnight charging and no surge loads from rapid acceleration?
Has to be a Tesla by now out there with a million miles, did it last on the original pack? They must know what happens every quarter million miles since Tesla phones-home with every detail.
As I wrote, nobody publishes exact numbers on this. There’s reasonable room for error though because most people never go beyond 300-400k during the lifetime of a car. Packs generally go longer than anticipated a few years back, such that a broken pack is no longer a real concern for most cars starting, say, 2020. There was a lifetime issue with the original Leaf, but they seemed to have fixed that in later versions.
It’s also somewhat moot to worry about this - if you need to charge en route, you’ll fast charge. If you’re at home, you’ll charge slow. You won’t go out of your way to fast charge since it’s expensive. Except if you don’t have a charger at home, at which point you don’t have a choice anyway.
Not just because it keeps temperatures down but something else chemically.