Now the real question is what's the MTTF for it. Since it's a solid polymer in place of the electrolyte, it would seem like tendrils of lithium cannot be create

Now the real question is what's the MTTF for it. Since it's a solid polymer in place of the electrolyte, it would seem like tendrils of lithium cannot be created as there is no electrolyte, and thus, battery degradation might be less problematic, unless, of course, the polymer breaks down over time. A Tesla being able to go over 500 miles on a single charge if this really can get to market (and the materials should be relatively inexpensive to boot).