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- W4294888912 abstract "into the electrochemical cell. Electrochemically facile decamethyl ferrocene and cobaltocene are chosen as redox mediators to kick-start the initial reduction of solid S into soluble polysulfides and final reduction of polysulfides into solid Li2S, precluding the need for conductive carbons. On the anode side, a LiI and LiNO3 pretreatment strategy encourages a stable SEI and lessens capacity fade, avoiding use of ion-selective separators. Complementary materials characterization confirms the uniform distribution of LiI in the SEI, while SEM confirms the presence of lower surface area globular Li deposition and UV-Vis corroborates evolution of the polysulfide species. Equivalent areal loadings of up to 50 mgS cm-2 (84 mAh cm-2) are demonstrated, with high capacity and voltage efficiency at 1-2 mgS cm-2 (973 mAh gS-1 and 81.3% VE in static cells and 1142 mAh gS-1 and 86.9% VE in flow cells). These results imply that the fundamental Li-S chemistry and SEI engineering strategies can be adapted to the hybrid redox flow battery architecture, obviating the need for ion-selective membranes or flowing carbon additives, and offering a potential pathway for inexpensive, scalable, safe, MWh scale Li-S energy storage." @default.
- W4294888912 created "2022-09-07" @default.
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- W4294888912 date "2022-08-01" @default.
- W4294888912 modified "2023-10-16" @default.
- W4294888912 title "Evaluation of bio-inspired flow fields in a mediated Li-S flow battery for grid energy storage" @default.
- W4294888912 doi "https://doi.org/10.2172/1884907" @default.
- W4294888912 hasPublicationYear "2022" @default.
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