Lee, I think this 98% recycled is a case of very carefully drawing the
envelope. I believe it only accounts for batteries that make it though
the front gate of the recycling facility.
Here is why:
According to the International Lead Association's figures, lead-acid
batteries use 85% of all the lead produced form all sources. (This
percentage goes up a touch with each passing year because lead is used
in fewer other products.)
About 50% of the lead produced is mined, and 50% comes from recycled
lead. This is also directly from the ILA figures.
This ~50% recycled fraction has been quite steady for quite a few years.
If _none_ of the lead used for other than lead-acid batteries is
recycled but ends up in the land fill, (not true, but bear with me)
where is the remaining 35% of the lead used for lead acid batteries going?
Basically, at _least_ 35% of all lead-acid batteries is _not_ being
recycled. If they were recycled at 98%, there would be at least 83% of
the lead production would be from recycled lead from lead-acid
batteries. Only 50% comes from recycled lead.
The figures just don't add up. At least 35% of lead-acid batteries are
ending up in the land fill. Just doing basic mass balance accounting
using the ILA figures.
Indeed, an entire EV's worth of batteries is more likely to end up at
the recycler than an alarm battery, but the 98% I believe is "creative
accounting" at best.
On 1/23/2018 11:40 PM, Lee Hart via EV wrote:
Mark Abramowitz via EV wrote:
I'm always reluctant to recommend large scale solutions relying on
lead acid batteries.
The adverse environmental impacts of plants that process them are
huge, contaminating nearby communities with lead emissions for which
there is no safe exposure.
Lead can certainly be bad for people and the environment. But then, so
can the materials in just about any battery.
The key lies in *responsible* manufacturing, handling and recycling.
Lead-acid batteries have been around so long that there are laws and
procedures (in most developed countries) that prohibit bad practices.
Upwards of 98% of the lead is recycled into new batteries. No other
battery comes close. The majority of them are (sadly) thrown out as
trash and wind up in landfills.
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)