I haven't read the whole thing yet, and I'm not really a battery expert, but a battery needs to check really many boxes to be viable in a commercial product. A

I haven't read the whole thing yet, and I'm not really a battery expert, but a battery needs to check really many boxes to be viable in a commercial product. Among these are: ability to mass produce, resistance to mechanical stresses, safety, peak performance, low auto-discharge, ability to recycle, energy density, charge cycles, efficiency, availability of materials, operational temperature range, storage temperature range. The latter criteria seem to be well addressed in the paper, the first few not really, or only tangentially (based on a quick ctrl+f for some of the key words).