It's hard to answer your question entirely right now, but many batteries end up in non-car applications for a few years before they run out of useful life. A car battery with 50% of its original 80kwh is still a LOT of juice.
So even before recycling there is a LOT of reuse possible.
But ultimately when it comes to the recycling process, as grids continue to go carbon-free, the amount of energy used to recycle batteries becomes irrelevant as long as there is an ecological upside.