2015
DOI: 10.1016/j.jpowsour.2015.06.150
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Effect of LiNO3 additive and pyrrolidinium ionic liquid on the solid electrolyte interphase in the lithium–sulfur battery

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Cited by 97 publications
(55 citation statements)
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“…[86] On the Li 0 anode side,LiNO 3 participates in the formation of as table passivation layer, which suppresses dendrite growth and redox shuttling of dissolved PS.Detailed analysis of the Li 0 surface showed that the direct reduction of LiNO 3 leads to the formation of Li x NO y species.O ther studies concluded that the reduction of LiNO 3 could also lead to the formation of species with nitro,R -NO 2 ,g roups,a sw ell as Li 2 O, [97] LiNO 2 , [98] and Li 3 N [86] (Figure 12). Zhang [91] reported as table capacity of 500 mAh g À1 after 110 cycles on adding LiNO 3 to the LiTFSI/dioxolane (DOL)/dimethoxyethane (DME) electrolyte system in the potential range of 1.7-2.8 V. [91] Thes tudy highlighted the formation of as table SEI layer on the Li 0 anode surface,b ut the resulting film was found to grow indefinitely with the continuous consumption of LiNO 3 .B arghamadi et al [92] investigated the effect of LiNO 3 as an additive in ap yrrolidinium-based IL (C 4 mpyr-TFSI) for Li-S cells.T he authors demonstrated that the type of passivation layer was the same as in the typical liquid organic electrolytes containing amixture of DOL and DME.…”
Section: Nitrate Compoundsmentioning
confidence: 96%
“…[86] On the Li 0 anode side,LiNO 3 participates in the formation of as table passivation layer, which suppresses dendrite growth and redox shuttling of dissolved PS.Detailed analysis of the Li 0 surface showed that the direct reduction of LiNO 3 leads to the formation of Li x NO y species.O ther studies concluded that the reduction of LiNO 3 could also lead to the formation of species with nitro,R -NO 2 ,g roups,a sw ell as Li 2 O, [97] LiNO 2 , [98] and Li 3 N [86] (Figure 12). Zhang [91] reported as table capacity of 500 mAh g À1 after 110 cycles on adding LiNO 3 to the LiTFSI/dioxolane (DOL)/dimethoxyethane (DME) electrolyte system in the potential range of 1.7-2.8 V. [91] Thes tudy highlighted the formation of as table SEI layer on the Li 0 anode surface,b ut the resulting film was found to grow indefinitely with the continuous consumption of LiNO 3 .B arghamadi et al [92] investigated the effect of LiNO 3 as an additive in ap yrrolidinium-based IL (C 4 mpyr-TFSI) for Li-S cells.T he authors demonstrated that the type of passivation layer was the same as in the typical liquid organic electrolytes containing amixture of DOL and DME.…”
Section: Nitrate Compoundsmentioning
confidence: 96%
“…The TFSI anion could maintain stable charge and discharge, and the ether group in the cation of the ionic liquid effectively improves the conductivity of electrolytes. The effect of both ionic liquid 1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethanesulfonyl) imide (C 4 mpyr‐TFSI) and LiNO 3 to stabilize lithium metal surfaces in Li–S batteries was also investigated . The passivation film modified by the resultant S x O y could protect the Li anode from direct corrosion reactions with polysulfides.…”
Section: Metal‐based Anodes In Li–s Batteriesmentioning
confidence: 99%
“…LiNO3 is added to the electrolyte, because it participates in the formation of a stable passivation film on the anode that protects it against the attack of the polysulfides [342], and potentially suppresses the gas generation [343]. The passivation of the Li electrode comes from the fact that LiNO3 oxidizes the sulfides to LixSOy species [344], and thus prevents the continuous transport of electrons from Li to polysulfides in the electrolyte. In addition, LiNO3 is capable of catalyzing the conversion of high soluble PS to slightly soluble elemental sulfur near the end of charging process, and that the 39 combination of a soluble nitrate in the electrolyte and an insoluble nitrate in the sulfur cathode leads to synergetic improvement [343,345].…”
Section: The Electrolytementioning
confidence: 99%