I discussed this article with Mooch a few days ago, I found it interesting, but according to Mooch nothing beats liquid electrolytes, I’m just quoting what he told me (rather than interpreting).

That’s what he said to me:

Mooch said: “Hopefully in a few years he will be able to commercialize his work…a very long way to go though as solid-electrolyte cells have been in development for a long time. I am hopeful though because it addresses a couple of failure modes.

But I’m thinking they will only be very low current rated cells. Ion mobility through glass is much worse than through a salted liquid.”

Me: And it is true that objectively solid electrolytes by experiment are poor performers in terms of pure current.