USMCProbe stated:
I haven't seen any good pictures or scans of the ANA battery. I thought it was burned so bad that they couldn't really make a valid conclusion. The JAL battery was "lucky", in that they stopped the fire before complete destruction and they got a good look at the failure mode.
From the couple of pictures that I have seen (sitting on a wooden pallet), I would say that the ANA battery was actually in better shape than the JAL battery.
Pictures shown in some of the articles about the ANA battery were actually NTSB photos of the JAL battery (on a clean plastic pad with dimension calibration tags next to the battery.)