What does "not overcharged" mean anyway? They announced that the charge voltage did not exceed the correct top voltage. But, did the charge current switch to trickle as the cells became full?
Or, here's a stretch: did the BMS logic work properly and stop full cells from being overcharged while others were still charging, but the charge current didn't decrease correspondingly? Or, did the BMS shunt several cells out of the circuit when they became too unbalanced, putting too much load on the remaining cells? The reporters oversimplify the meaning of the reports. Annoying. Peri -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rod Hower Sent: 22 January, 2013 5:38 AM To: Electric Vehicle Discussion List Subject: Re: [EVDL] Lithium ion type chemistry in 787 fire >>NTSB: Plane battery that burned was not overcharged>>What Does the Boeing >>Dreamliner Li-Ion Battery Fire Mean for EVs? http://www.nfpa.org/assets/files/pdf/osvehicle.pdf Public fire departments responded to 329,500 vehicle fires in the United States during 2002. These fires caused 565 civilian deaths, 1,825 civilian injuries and $1,392,000,000 in direct property damage. (See Table 1.) Vehicle fires accounted for 20% of the 1,687,500 fires reported to U.S. fire departments that year. In that same year, vehicle fires caused 17% of all civilian fire deaths, 10% of all civilian fire injuries and 13% of the nation's property loss to fire. More people died from vehicle fires than from apartment fires, and vehicle fires caused seven times the number of deaths caused by non-residential structure fires.1 What do those fires Mean for ICE vehicles? ----- Original Message ---- From: brucedp5 <[email protected]> To: [email protected] Sent: Tue, January 22, 2013 3:53:15 AM Subject: Re: [EVDL] Lithium ion type chemistry in 787 fire [ref http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Voltage-ru led-out-in-Boeing-li-ion-battery-fire-td4660746.html EVLN: Voltage ruled out in Boeing li-ion battery fire NTSB: Plane battery that burned was not overcharged What Does the Boeing Dreamliner Li-Ion Battery Fire Mean for EVs? ] -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Lithium-ion-typ e-chemistry-in-787-fire-tp4660615p4660753.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ 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) _______________________________________________ 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) _______________________________________________ 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)
