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Synthesis of highly electrochemically active Li2S nanoparticles for lithium-sulfur-batteries

 
: Kohl, Michael; Brückner, Jan; Bauer, Ingolf; Althues, Holger; Kaskel, Stefan

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Journal of materials chemistry. A, Materials for energy and sustainability 3 (2015), Nr.31, S.16307-16312
ISSN: 2050-7488
ISSN: 2050-7496
Englisch
Zeitschriftenaufsatz
Fraunhofer IWS ()
carbothermal reduction; electric batteries; lithium; lithium sulfur battery

Abstract
Carbothermal reduction of lithium sulfate below its melting point was used to produce sub-micron sized lithium sulfide particles which retain the morphology of the source particle. Using a lithium polysulfide-doped ether electrolyte, significantly enhanced activation of lithium sulfide could be accomplished in battery cells, achieving high discharge capacities up to 1360 mA h gsulfur-1 at a 0.1C rate. Showing an economically viable and scalable reaction routine for future lithium-sulfur-batteries.

: http://publica.fraunhofer.de/dokumente/N-356613.html