These are typically LFP batteries that already have significantly longer cycle life and are a much more stable chemistry than the NCA / NCM cells in normally found in western cars.

The cells are also designed toward charge speed vs capacity (more copper less lithium) and cooling systems capable of keeping batteries at good temps even with 10C charging, so overall they are shooting for million mile batteries, I don't think people realize how robust LFP's are and that China is all in on that chemistry and the progress being made there.