It's tough to turn that into a scalable, sustainable business. There are so many different types of EV battery packs and you can't just pull one out of an old car and hang it on someone's garage wall. You would typically have to break the old pack down, test the individual cells, and use them to construct a new pack. This is such a labor intensive process that it might not really be cost effective.
Ya, I'm unclear how old EV battery packs are being repurposed, at scale.
Maybe someone's gathering up identical packs, eg a specific generations of Tesla Model 3 packs, and turning just those into power walls or grid storage.
That said, methinks since battery recycling tech has scaled up ahead of demand, it's cheaper and faster to extract the misc minerals and make new, much much better, batteries (for grid storage).
I'm noob, so really wouldn't know. I guess we'll see.
