The problem I have with this approach, if I understand the report correctly, is that Boeing has not fixed the underlying problem that caused the short and fire. They have designed a containment and venting system they believe will contain any malfunction and prevent any spread beyond the battery box. This is not altogether comforting.
That’s how I read it.
Worse, they’ve lost every single advantage that going to the lithium cobalt oxide was supposed to give them.
This is not altogether comforting either, contained or not.
I know that in other contexts you basically have to let a lithium fire burn itself out, and that is what's happening here by design.