@farmerman,
Li/S has some problems and the guys at Texas discovered the use of tellurium cathodes would prevent dendrites forming and having a flashout.
Having said all that---I dont think that Li/S will be where its going to go. I think the Cobalt and liquid electrolyte (with driven cooling) has a better chance to become a standard battery for e-cars and trucks.
They already can get 450 mile ranges with modified Li -ion batteries by using entire platforms. So, new batteries have got to show us great long term prformance.
I do businss as a "prospector" for many RREs aroun the world. and its amazing where we find some of them. Tellurium is one of the group of "chalcogenic" metals in the periodic table that inclue S, Se,Te and the Po 9radioactive one). So as such we can prospect for these wherever we find Gold, platinum, or Arsenic. Its a toxic metal , smells like Selenium or arsenic "garlicky smell " But if were driving around in our e cars and smell garlick and its not a pizza box, we better pull over.
My business is more affected by needs for RRE's and other ions like tantalum, rhodium, tellurium, and just a few of the lanthanum block of elements. I mostly deal in the bottom third of the Periodic table