The NTSB says it will release its interim report Thursday morning at at 11 a.m. EST, on its...

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nakedjaybird Comments (2301)
 
I hope the NTSD and Boeing reincorporate the nail-thru-the-cell test to create a short which will be conducted with all 8 cells connected in series, and fully charged, to assess the damage to the whole battery due to an internal short with 100% of the batteries stored energy dissipated thru that one cells short.

And I'd like to see Boeing consider a combined (in circuit) dual battery system of Pb-Acid for infrequent (daily) deep discharges with little self-discharge for APU starting combined with Axion's PbC (lead carbon) for high frequency, shallow discharges, with high rate recharge capability and long cycle life for the in-flight use; both of these batteries do not BURN like Lithiums.

So, the Pb batteries may weigh a little more, and be a little larger, but that's a small penalty for guaranteeing NO Fires, smoke, etc. and not having to drive a plane around the air waves with a battery system designed to confine a fire: duh!.: when you can fly with no threat.

Besides, the Pb-Acids have been certified in the past.

A passenger seat or two weight penalty for no-fire, more safe, electrochemical systems may be a very small penalty, if at all.
7 Mar, 03:54 PM Reply Like