I don't. I do know what is involved though. You dig a big hole and put them in it. Then over 25 years or so the lithium seeps out into the water table...
Usually from what I understand in Europe at least, they pack them, mail them to an EU border country such as Turkey to comply with EU regs and certification and they're shipped on to the far east by the lowest bidder. They then appear in land fills and are picked apart by children for the copper...
If by "recycle" you will accept the alternative "reuse", I know many people who reuse batteries. I've done it once, when a hardware failure caused my laptop to become a doorstop. The battery was put into an RC project I was working on and the rest of the laptop was sent to true recyclers.
I'm curious, because I never tried to do that at home. I always returned the whole appliance for recycling.