787 Batteries and Chargers - Part 1

[Lyman]

Fold at separator 3 is the mechanical and heat management weak link, imo. And line "D" where the stack "returns" on itself. (10).

Thank you Machaca.

Edit.....The "POUCH" concept is N/A on GSYUASA, as the container is likely ("rigid") polypropylene. Note in the CT scan of the failure, the more deformed batteries tend to mimic what should be, imho, the correct "shape", a cylinder.

The weaker "sides" deflect the most, the "corners" very little, and the "ends" very little, as expected.