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Start of commercialisation of lithium sulphur batteries

Discussion in 'Battery Discussion' started by Dutchie, Oct 20, 2013.

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  1. Dutchie

    Dutchie Member

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  2. curiousguy

    curiousguy curious member

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    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
     
  3. dpeilow

    dpeilow Moderator

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  4. Matias

    Matias Active Member

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

    WarpedOne Supreme Premier

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    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.
     
  6. Matias

    Matias Active Member

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    #6 Matias, Jul 5, 2014
    Last edited: Jul 5, 2014
    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
     
  7. Adm

    Adm Active Member

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  8. Matias

    Matias Active Member

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    Great news!
     
  9. Matias

    Matias Active Member

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    #9 Matias, Aug 21, 2014
    Last edited: Aug 21, 2014
    This Oxis technology feels too good to be true. Hopefully it is true.
     
  10. WarpedOne

    WarpedOne Supreme Premier

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    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.
     
  11. Matias

    Matias Active Member

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    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.
     
  12. Iz

    Iz EVs are here to stay

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

    scaesare Well-Known Member

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    -Elon Musk
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