Sunday, Aug 15, 2010 at 20:22
This reminds me of the early 90s the Army introduced a new radio that used lithium batteries,when flat they were suposed to be returned to the supply battalion,of course being infantry we collected these things untill we had a couple of full pallets on the back loading dock. People would sit on them,climb on them and thow them a each other. I rang the supply mob to see what to do with them and they asked if any were leaking (a green slime that dries to a solid) I said about 10% and they said OK.
About 3 minutes later a fire engine arrives under full lights and sirens and out jump the firies all dressed in the full yellow suits and air tanks. The area was cordoned off the batteries were wrapped in plastic they loaded them onto a truck with a forklift and drove the lot away,they had to decontaiminate the area ,truck and forklift and took air samples and swabs before allowing any access to the area.
We understood from this that lithium can be quite dangerous.
Below are some of the problems that may be encountered with lithium batteries,and they classed as dangerous goods for air travel and post.
To dispose of throw them in a fire and run like hell, they go off like a 1 1/4 lb slab of TNT.
Explosion
–Unintentional charging by end item
??Venting, possibly under high pressures
??Release of hazardous materials
–Noxious, toxic or hazardous gases
–Strong acids or bases (liquid or gas)
–Flammable gases and liquids
??Fire
Cell defects or abuse may result in ventings that may be high pressure events producing shrapnel
??Release of internal pressure from a cell by ejecting some or allof its internal components into the environment
–These components may be flammable and may include noxious gasses
•Li/SO2battery releases acutely toxic and flammable gases
•Li/MnO2battery releases flammable gases
–A venting of a lithium ion battery may release
•Flammable organic electrolyte (e.g. PC-EC-DMC)
•LiPF6--this material is reactive with
water; forms HF acid
•Carbon either as carbon or
water reactive lithiated graphites
•LiNiCoO2or other lithiated oxides and heavy/transition metals
•Metal foils and fragments (copper or aluminum)
•Methane, hydrogen, carbon monoxide (electrolyte decomposition products)
??Ventings may be accompanied by smoke, sparks and or flames
AnswerID:
427329
Follow Up By: Member - Toyocrusa (NSW) - Sunday, Aug 15, 2010 at 20:58
Sunday, Aug 15, 2010 at 20:58
Bloody Hell. This modern technology. Shouldn't be foisted on us old fellas. Bob
FollowupID:
697983
Follow Up By: Pete Jackman (SA) - Monday, Aug 16, 2010 at 14:25
Monday, Aug 16, 2010 at 14:25
"may result in ventings that may be high pressure events producing shrapnel "
Isn't that just an explosion!
FollowupID:
698049