The (small) cell is in sea salt saturared water (expensive, I know!) in my shower tub. If I don't live through the night, may the source be with you ;-) -marc On 9/11/06, William Chops Westfield wrote: > > > On Sep 11, 2006, at 6:36 PM, Marc Nicholas wrote: > > > Chemistry seems to remind me that Li is safe under oil? > > I really would sleep better putting this sucker into safe > > containment and doing the Right Thing(tm) with hazmat tomorrow. > > > Typically, the dangerous Li-ion battery reactions are not those > between metallic Lithium and the air; you get thermite-like > reactions between cathode (?) materials like cobalt oxide and > the lithium, and/or simple combustion of vaporized electrolyte > (which is flammable.) I don't think oil is a good idea (more > flammable stuff.) > > I've heard anecdotally that the "proper" disposal for damaged > cells is to throw them in a moderate sized bucket of salt water. > Outside, of course. This decomposes the lithium that's left, > dissipates any remaining charge, and cools everything down > to the point where it is unlikely to combust. This sounds > reasonable to me, except that I'm no sure how dangerous the > resulting solution is (chemically speaking.) > > BillW > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist