alt Hacker News> we can't manage to keep that out of the water supply!
AFAIK, the lead in the water supply doesn't come from batteries. It mostly comes from lead pipes. Lead acid battery recycling is one of the more efficient recycling programs out there.
> we can't manage to keep that out of the water supply!
AFAIK, the lead in the water supply doesn't come from batteries. It mostly comes from lead pipes. Lead acid battery recycling is one of the more efficient recycling programs out there.
"efficient" and "clean" aren't the same thing, and they never have been.
Recycling lead-acid batteries is extremely efficient. Nearly the entire battery by mass is recovered.
But, it also causes severe lead pollution around recycling sites. Lead acid battery recycling is one of the leading causes of lead poisoning around the world [1]. Estimations vary, but all generally agree that millions of human-years of life have been lost due to lead pollution caused specifically by lead-acid battery recycling. [2]
[1]: https://link.springer.com/chapter/10.1007/978-0-387-77030-7_...
[2]: https://pmc.ncbi.nlm.nih.gov/articles/PMC5990833/
Returning to the original point, recycling anything involving heavy metals is extremely difficult to do without poisoning people. If we can't avoid it with one of the simplest, dumbest battery technologies in regular use today, I don't see how we're going to avoid it with a battery technology involving heavy metal nanoparticles.