Byoung-Min Lee, Youngsang Chun, Hyeong Yeol Choi, Chan Sol Kang, Doo Hyun Baik
{"title":"锂硫电池用聚苯并恶唑衍生n掺杂碳/硫阴极碳硫比优化","authors":"Byoung-Min Lee, Youngsang Chun, Hyeong Yeol Choi, Chan Sol Kang, Doo Hyun Baik","doi":"10.1007/s12221-025-00979-0","DOIUrl":null,"url":null,"abstract":"<div><p>Lithium-sulfur batteries are promising candidates for next-generation energy storage systems due to their high theoretical energy density and cost-effectiveness. However, challenges such as poor sulfur conductivity, polysulfide shuttling, and capacity degradation remain significant barriers to commercialization. This study investigates the role of carbon-to-sulfur ratios in optimizing the electrochemical performance of nitrogen-doped carbon cathodes. By characterizing the physical and chemical properties of polybenzoxazole-derived carbon structures and their sulfur mixture, we identify the optimal carbon-to-sulfur ratio that balances electronic conductivity, sulfur utilization, and polysulfide suppression. Electrochemical analyses, including cyclic voltammetry, charge–discharge behavior, and impedance spectroscopy, reveal that a carbon-to-sulfur ratio of 10:1 achieves superior performance, with improved charge transfer, enhanced sulfur conversion efficiency, and minimized polysulfide shuttle effects. These findings provide valuable insights into material design strategies for high-performance lithium-sulfur batteries. </p></div>","PeriodicalId":557,"journal":{"name":"Fibers and Polymers","volume":"26 6","pages":"2297 - 2304"},"PeriodicalIF":2.2000,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimizing Carbon-to-Sulfur Ratio in Polybenzoxazole-derived N-doped Carbon/Sulfur Cathodes for Lithium-Sulfur Batteries\",\"authors\":\"Byoung-Min Lee, Youngsang Chun, Hyeong Yeol Choi, Chan Sol Kang, Doo Hyun Baik\",\"doi\":\"10.1007/s12221-025-00979-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Lithium-sulfur batteries are promising candidates for next-generation energy storage systems due to their high theoretical energy density and cost-effectiveness. However, challenges such as poor sulfur conductivity, polysulfide shuttling, and capacity degradation remain significant barriers to commercialization. This study investigates the role of carbon-to-sulfur ratios in optimizing the electrochemical performance of nitrogen-doped carbon cathodes. By characterizing the physical and chemical properties of polybenzoxazole-derived carbon structures and their sulfur mixture, we identify the optimal carbon-to-sulfur ratio that balances electronic conductivity, sulfur utilization, and polysulfide suppression. Electrochemical analyses, including cyclic voltammetry, charge–discharge behavior, and impedance spectroscopy, reveal that a carbon-to-sulfur ratio of 10:1 achieves superior performance, with improved charge transfer, enhanced sulfur conversion efficiency, and minimized polysulfide shuttle effects. These findings provide valuable insights into material design strategies for high-performance lithium-sulfur batteries. </p></div>\",\"PeriodicalId\":557,\"journal\":{\"name\":\"Fibers and Polymers\",\"volume\":\"26 6\",\"pages\":\"2297 - 2304\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2025-05-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fibers and Polymers\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12221-025-00979-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, TEXTILES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fibers and Polymers","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12221-025-00979-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, TEXTILES","Score":null,"Total":0}
Optimizing Carbon-to-Sulfur Ratio in Polybenzoxazole-derived N-doped Carbon/Sulfur Cathodes for Lithium-Sulfur Batteries
Lithium-sulfur batteries are promising candidates for next-generation energy storage systems due to their high theoretical energy density and cost-effectiveness. However, challenges such as poor sulfur conductivity, polysulfide shuttling, and capacity degradation remain significant barriers to commercialization. This study investigates the role of carbon-to-sulfur ratios in optimizing the electrochemical performance of nitrogen-doped carbon cathodes. By characterizing the physical and chemical properties of polybenzoxazole-derived carbon structures and their sulfur mixture, we identify the optimal carbon-to-sulfur ratio that balances electronic conductivity, sulfur utilization, and polysulfide suppression. Electrochemical analyses, including cyclic voltammetry, charge–discharge behavior, and impedance spectroscopy, reveal that a carbon-to-sulfur ratio of 10:1 achieves superior performance, with improved charge transfer, enhanced sulfur conversion efficiency, and minimized polysulfide shuttle effects. These findings provide valuable insights into material design strategies for high-performance lithium-sulfur batteries.
期刊介绍:
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