It is looking more like the BMS (or "charger" as the press calls it,)
is to blame. Might still be the batteries. BMS should have caught it, however.
Nice article here:
http://www.technologyreview.com/news/509981/grounded-boeing-787-dreamliners-use-batteries-prone-to-overheating/
The comments are even more interesting. The "charger" company office
burned to the ground in 2006. Looks like one of the "charger" company
employees filed a whistle blower lawsuit due to shipping defective
product. Interesting reading.
My bet is that it the problem is an unbalanced pack, either caused
by, or uncorrected by, the BMS. Whatever the root cause is, it was
compounded by picking Cobalt Oxide chemistry.
Bill Dube'
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