EVs have a lot of smaller cells packed together and there is a heavy and capable Battery Management System attached to that, along with heating and cooling elem

EVs have a lot of smaller cells packed together and there is a heavy and capable Battery Management System attached to that, along with heating and cooling elements. AFAIK, most of the battery degradation on phones can be attributed to heat and suboptimal operating temperatures. An EV will heat up / cool down the battery, treat each cell as an independent unit during cycles etc. They will degrade a lot slower compared to phones. Most EVs even after years of use have decent battery performance and some manufacturers (like Tesla and BMW) even go with 8-10 year battery warranty programs. I think they don't see much abuse like the tiny phone batteries.