A previous posting suggested a Lithium Cobalt mix is a Fire Chiefs worst nightmare since a fire is self sustaining as it produces its own O2. So despite the latest news that the Japanese have found no faults with their battery manufacture, should such a battery be on an a/c.?
I ask myself why have Boeing gone with this technology?
My suggestion is because the a/c is all electric then there are ultimate failure situations where high energy is needed. On every a/c I have flown before the brakes for example have a brake accumulator. The brakes on this a/c are electric, so the backup has to be the same. A high energy battery?