Enhancing High-Rate Charge-Discharge Performance of Lithium-Sulfur Batteries Using Carbon Black InterlayerEnhancing High-Rate Charge–Discharge Performance of Lithium–Sulfur Batteries Using Carbon Black Interlayer
- Authors
- Lee, Jae Bin; Min, Gyeonguk; Lim, Won-Gwang; Kang, Hyunchul; Shin, Kyuchul; Yoon, Songhun; Lee, Jinwoo; Joo, Jin
- Issue Date
- Apr-2024
- Publisher
- KOREAN INSTITUTE CHEMICAL ENGINEERS
- Keywords
- Lithium-sulfur batteries; Carbon black; Cathode coating; Interlayer; Electrochemical performances
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.41, no.4, pp 1239 - 1248
- Pages
- 10
- Journal Title
- KOREAN JOURNAL OF CHEMICAL ENGINEERING
- Volume
- 41
- Number
- 4
- Start Page
- 1239
- End Page
- 1248
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/73025
- DOI
- 10.1007/s11814-024-00057-w
- ISSN
- 0256-1115
1975-7220
- 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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