It's very difficult to tell what the global recycling rate is, here's a good article about that: https://www.sustainabilitybynumbers.com/p/battery-recycling-.... It might be as high as 59%. There are a lot of companies working on ramping up this industry in the US, some examples are https://ascendelements.com/, https://www.redwoodmaterials.com/, https://ecobat.com/our-business/ecobat-solutions/lithium-ser.... There's no real technological barrier, it's just about making the economics work.