See also: http://www.aqmd.gov/news1/2013/PetitionForExideOrderOfAbatement.htm
and http://www.aqmd.gov/rules/proposed/1420-1/DSR_PAR1420_1.pdf Sent from my iPhone On Dec 26, 2013, at 7:48 AM, Bill Dube <[email protected]> wrote: > Lead _is_ toxic. They have systematically banned it from most uses (like > paint and solder.) The writer makes an excellent point. They still use > lead-acid 12 volt batteries mainly a matter of tradition and convenience and > cost. If they invented them today, they could not go into production because > of the environmental concerns. > > 50% of lead production comes from recycled sources, the rest is mined. > Lead-acid batteries use 80% of that total lead production. The difference, > 30%, ends up in the environment. Simple math. You just look at the lead > association's own figures. > > The lead-acid battery industry claims 95% (up to 99%) material recycle rate, > but they fail to mention that only counts the batteries that actually make it > through the gates of the recycling facility. Great PR. Bad math. > > Bill D. > > > > On 12/26/2013 5:03 AM, brucedp5 wrote: >> >> % 'Lead-acid batteries = toxic' = writer's misinformation % >> >> http://www.plugincars.com/why-do-electric-cars-have-lead-acid-12-volt-batteries-when-lithium-lighter-129118.html >> Why Do Electric Cars Have Lead-Acid 12-Volt Batteries When Lithium Is >> Lighter? >> By David Herron ยท December 20, 2013 >> >> [image >> http://www.plugincars.com/sites/default/files/P1129300%20copy.JPG >> A 12 volt battery (lower right) under the Nissan Leaf hood. >> ] >> >> Modern electric cars were made possible by lithium-ion batteries. But look >> under the hood of any electric vehicle and you'll find a second battery, a >> lead-acid battery, whose purpose is to power the 12-volt system. A reader >> asked us why isn't this a lithium-ion battery as well? >> >> Lead-acid batteries have an obvious problem: their weight. Specifically, the >> energy density, or kilowatt-hours of energy storage per kilogram of weight. >> Using a lithium-ion battery instead of a lead acid battery for the 12 volt >> system would reduce the car's weight, improving its overall efficiency. >> >> Another problem with lead acid batteries is toxicity. Some of us buy >> electric cars because they're kinder on the environment, and lead acid >> batteries are not exactly clean nor kind to the environment. Lead itself is >> toxic, especially to young children, and there are several toxic chemicals >> used in lead battery manufacturing. >> >> The 12-volt battery stores the po -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20131226/f39c820d/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
