SilverFox and others have posted about the stuff from the combusted batteries being "real bad" for you in plain English. They are quite right. Moreso than I imagined. To relay my real world experience with this: even a SMALL amount of the gray gas expelled from the batteries during combustion inhaled can do significant DELAYED ONSET damage. I read about Icebreak and Bill Waites trying to replicate the failure, and I applaud their courageous and determined spirit, however I cannot stress highly enough that one should overexaggerate the danger of the fumes and wet char residue, which I handled with bare hands (no choice). This is not mamby-pamby MSDS Chicken Little the Sky is Falling scary sounding rhetoric... an MSDS would have you believe a car wash solution is so dangerous to handle you might want to invest in a full blown Hazmat suit in order to wash your car. They typically refer to catastrophic spills of material or somesuch. In the case of these batteries, I was shocked to discover almost all the MSDS was devoted to minimal discussion of how to deal with burned/burning batteries. There was a clear trend of disclaimer-ism: "in normal use the compounds contained within the metal can of the battery cannot come in contact with the user and thus are not subject to special handling precautions. There is a BRIEF mention of some of the potential decomposition byproducts of combustion, but the annoying phrase repeats saying this would only be applicable for abuse or disaster scenarios. That could stand revision. And to Bill Waites, PLEASE be super careful. You mentioned "fire is OK, an explosion is not....." in an earlier post. Well, what is happening or rather what did happen to me is the rapid venting was an out of control reaction producing large amounts of hydrogen. I recall that moment in high school chemistry of tossing a chunk of cryogenic sodium metal into a bath of water, it oxidized violently and liberated prodigious H2 (hydrogen) which eventually ignited from the intense heat of the vigorous reaction. Lots of bubbling, and a giant KaBOOM! as a climax. Strikingly similar to what occurred with the cells. The rapid venting (and I cannot emphasize this enough) is the only early warning sign but by itself is the true menace and real demon in this process. The hydrofluoric acid in this gaseous emission is horrifically toxic, I radically underestimated its impact on me, tricked by the delayed onset nature of the symptoms of its poisioning. I've turned the corner and improving, but I feel worse than when it first happened. I didnt sleep at all last night, threw up twice, and sweat so much I showered three times. I've got to get more rest, but the leg burns, I feel nauseated, and I'm still looking like a measles poster child. Nothing to do but wait it out. I can pass along to others that if you are exposed to a scenario of gray haze/smoke jetting from the battery, get yourself to a source of fresh air as fast as possible, and keep anyone else as far away as possible. Under no circumstances should you breathe ANY of the fumes if it can be avoided. In retrospect I should have gone outside instead of typing for 20 minutes in the same room with the evil haze. AVOID THIS STUFF AT ALL COSTS. There is nothing but a respirator, or better bottled air to cope with these fumes, they are more dangerous than I thought possible. BIll, I urge you to be extremely cautious if you insist on trying to induce this failure. If you manage a high pressure cell venting, the explosion is almost certain, as the cell vent exists to stop a runaway reaction. But the greatest danger is the chemical nastiness you can breathe. That needs to be emphasized in the MSDS sheets. And made common knowledge here. More than typical common sense suggests, take extra precautions to avoid any exposure to the fumes of burning batteries.
Im feeling wiped out again, a lot of typing. Going to lay down for a while. Thanks again for everyone's support.