>Electrochemical characterization and post-mortem spectroscopy/ microscopy studies on cycled cells reveal an altered redox mechanism that reversibly converts mo

>Electrochemical characterization and post-mortem spectroscopy/ microscopy studies on cycled cells reveal an altered redox mechanism that reversibly converts monoclinic sulfur to Li2 S without the formation of intermediate polysulfides for the entire range of 4000 cycles. The development of unconfined high loading sulfur cathodes in Li–S batteries employing carbonate- based electrolytes can revolutionize the field of high energy density practical batteries. [italics mine] These are bold claims. You don't hear that every day. Polysulfides have been an accepted fact of life in Li-S batteries forever.