OXIS Energy achieves specific energy of 300 Wh/kg with lithium-sulfur cell

OXIS Energy

OXIS has developed its largest lithium-sulfur cell to date, achieving specific energy in excess of 300 Wh/kg. The company has also increased cell capacity to 25 Ah, a twelve-fold improvement in 18 months. OXIS predicts that it will achieve a cell capacity of 33 Ah by mid-2015.

The OXIS scientific team expects to achieve its goal of specific energy of 400 Wh/kg by the end of 2016 and in 500 Wh/kg by the end of 2018. According to the company, vehicle manufacturers are already reviewing and evaluating the cell technology.


MORE: OXIS Energy bets on lithium-sulfur

“OXIS Energy is set to remain at the forefront of the world’s leading battery technology with these significant improvements,” said OXIS CEO Huw Hampson-Jones. “They are being made in partnership with British and European academic and research institutions such as LEITAT of Spain, TNO of the Netherlands and the Foundation for Research and Technology in Greece. OXIS is on schedule to release commercial cells in the USA and Europe in 2015.” 

SEE ALSO: GM researchers develop improved Li-Sulfur cathode material


Source: OXIS Energy

  • Олег Лян

    Do something with Cycles! Li-titanates have 10000 cycles

  • http://twitter.com/brian_henderson Brian_Henderson

    Is the short circuit test in the second video a fair test? Of note is Li-Ion cell holds/dissipates about twice the energy of Li-S cell.

    Li-S cell: 2.1V @ 3300mA = 6.93W
    LiCoO2 cell: 3.7V @ 3200mA = 11.84W

    Missing data from this test is current readings to show the 3.5C and 20C discharge rates. How would the two cells fair if they were to dissipate the same amount of energy?

    The real point being made is that short circuit protection needs to be designed into battery cells as the energy density increases, regardless of chemistry.

  • http://www.totalautomationworks.com Phil Tuttobene

    I was hoping to see amperage trend also. Only voltage from what I saw.