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Radical or Not Radical: Revisiting Lithium–Sulfur Electrochemistry in Nonaqueous Electrolytes
Author(s) -
Cuisinier Marine,
Hart Connor,
Balasubramanian Mahalingam,
Garsuch Arnd,
Nazar Linda F.
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201401801
Subject(s) - polysulfide , sulfur , electrochemistry , electrolyte , dissociation (chemistry) , sulfide , lithium (medication) , chemistry , inorganic chemistry , organic chemistry , medicine , electrode , endocrinology
Tracking down trisulfur radical in lithium–sulfur batteries is reported . In nonaqueous electrolytes, dissociation of polysulfide dianions to radicals, and particularly trisulfur S 3 ·− , is believed to play a key role in the performance of lithium sulfur batteries. While S 3 ·− exists in only minor concentration in glymes, exacerbated dissociation in donor solvents allows full utilization of both sulfur and lithium sulfide.