Abstract
In this study, the cathode was coated with Super P, a low-cost conductive carbon, to simplify the process and reduce cost. Electrodes with different sulfur ratios were assembled into cells to characterize their CV curves and impedances. The S0.6-sp cell shows a high discharge capacity of 600 mAh g−1 at 2 C and 967 mAh g−1 at 0.5 C. These values are 10% and 25% higher, respectively, compared to S0.53 cells with the same carbon-to-sulfur ratio. Afterward, the S0.6-sp cell was disassembled to observe the suppression of the shuttle effect by confirming the appearance of the separator. In addition, through SEM images, electrode structure collapse caused by the Li2S/Li2S2 layer was insignificant.
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This work was supported by a Grant (2022M3H4A3095299) from the National Research foundation of Korea regulated by Ministry of Science and ICT of the Korean Government, Republic of Korea.
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Lee, J.B., Min, G., Lim, WG. et al. Enhancing High-Rate Charge–Discharge Performance of Lithium–Sulfur Batteries Using Carbon Black Interlayer. Korean J. Chem. Eng. 41, 1239–1248 (2024). https://doi.org/10.1007/s11814-024-00057-w
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DOI: https://doi.org/10.1007/s11814-024-00057-w