With that explanation I am still not clear whether the statistic on percentage of recycled batteries was car batteries, the battery industry as a whole, li-ion batteries, rechargeable batteries, … I am honestly interested in which statistics you are referring to. Especially the evolution of recycling of car batteries and the regions where recycling and collection occurs.

It seems you are adding uncertainty and doubt on the topic of battery recycling which I’m not sure is grounded. We are well past the point in our environment where we can live our current lifestyle in the way we live it today. We have to adapt to a different lifestyle and make strategic bets. It seems clear that we should stop pumping up oil and electric cars may help there. I’m looking for research that indicates that current car batteries are waiting in stockpiles to be recycled but no plants exist to recycle them.

As far as I can tell, there are not even enough bad battery packs around to suit the diy hackers to reuse them for home energy storage and with some luck your research points me to where I can find them.