Start of commercialisation of lithium sulphur batteries

steven visco, the CEO of polyplus said at a recent conference hosted by Argonne Ntl Labs that he expects to commercialize these lithium metal/flexible poly-ceramic separator/aqueous electrolyte/sulfur cathode in 4 years. i am not convinced but i am a fan of the sulfur cathode.

sion power is another company mainly funded by BASF who is trying to develop lithium/sulfur

Don't forget http://oxisenergy.com/uploads/OXIS_Li-S_EV_Cell_v1.4.pdf

This Oxis seems like credible company. Especially interesting is their claim that battery can be 100% discharged without problems.

Every battery can be 100% discharged without problems. You just define "empty" at SOC level that is high enough.

What counts is Wh/kg and basically nothing else.

Yes, but battery manufacturers report their energy density with 100-0% discharge even though you can't treat Li-ion battery like that if you want it to last. According to Oxis you can use lithium sulfur battery like that. So if we have Li-ion and Li-sulphur batteries with same reported capacity, li-sulphurs real life capacity is larger. Assuming Oxis's claims are true.

Technology | Oxis Energy

Oxis claims to have 300 Wh/kg and expects to add 20% in the coming months.

I wonder if they already are cooperating with an car manufacturer.

http://www.oxisenergy.com/blog/lithium-sulfur-batteries-a-step-closer-for-uk-forces/

Great news!

This Oxis technology feels too good to be true. Hopefully it is true.

They list Li-Ion at 150Wh/kg. Today mass produced LiIon cells already hit ~250Wh/kg.
When technology moves out of labs into factories Wh/kg only drops because of casing, terminals, fuses, ...
Their announcment of "just under 300Wh/kg" is therefore "nothing really special" beside that they are making progress.

Panasonic 18650B is 250 wh/kg on cell level. IF Oxis is on cell level slightly below 300, it might be better. Or the same.

WarpedOne said:

They list Li-Ion at 150Wh/kg. Today mass produced LiIon cells already hit ~250Wh/kg.
When technology moves out of labs into factories Wh/kg only drops because of casing, terminals, fuses, ...
Their announcment of "just under 300Wh/kg" is therefore "nothing really special" beside that they are making progress.

Click to expand...

Over the years we have read many posts regarding promising technologies - but the progress is slow and most never make it past the labs.

http://www.oxisenergy.com/blog/fros...-energy-with-the-2014-european-frost-sullivan

Frost-Sullivan http://en.wikipedia.org/wiki/Frost_&_Sullivan recognizes Oxis tecnology.

http://best-practices.frost-multimedia-wire.com/oxis-energy-ltd


This seems legit technology.

Matias said:

http://www.oxisenergy.com/blog/fros...-energy-with-the-2014-european-frost-sullivan

Frost-Sullivan http://en.wikipedia.org/wiki/Frost_&_Sullivan recognizes Oxis tecnology.

http://best-practices.frost-multimedia-wire.com/oxis-energy-ltd


This seems legit technology.

Click to expand...

“My top advice really for anyone who says they’ve got some breakthrough battery technology is please send us a sample cell, okay. Don’t send us PowerPoint, okay, just send us one cell that works with all appropriate caveats, that would be great. That sorts out the nonsense and the claims that aren’t actually true.”

Click to expand...

-Elon Musk