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DC Field | Value | Language |
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dc.citation.endPage | 10930 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 10920 | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 8 | - |
dc.contributor.author | Xu, Jiantie | - |
dc.contributor.author | Shui, Jianglan | - |
dc.contributor.author | Wang, Jianli | - |
dc.contributor.author | Wang, Min | - |
dc.contributor.author | Liu, Hua-Kun | - |
dc.contributor.author | Dou, Shi Xue | - |
dc.contributor.author | Jeon, In-Yup | - |
dc.contributor.author | Seo, Jeong-Min | - |
dc.contributor.author | Baek, Jong-Beom | - |
dc.contributor.author | Dai, Liming | - |
dc.date.accessioned | 2023-12-22T02:09:07Z | - |
dc.date.available | 2023-12-22T02:09:07Z | - |
dc.date.created | 2014-11-21 | - |
dc.date.issued | 2014-10 | - |
dc.description.abstract | Although much progress has been made to develop high-performance lithium-sulfur batteries (LSBs), the reported physical or chemical routes to sulfur cathode materials are often multistep/complex and even involve environmentally hazardous reagents, and hence are infeasible for mass production. Here, we report a simple ball-milling technique to combine both the physical and chemical routes into a one-step process for low-cost, scalable, and eco-friendly production of graphene nanoplatelets (GnPs) edge-functionalized with sulfur (S-GnPs) as highly efficient LSB cathode materials of practical significance. LSBs based on the S-GnP cathode materials, produced by ball-milling 70 wt % sulfur and 30 wt % graphite, delivered a high initial reversible capacity of 1265.3 mAh g-1 at 0.1 C in the voltage range of 1.5-3.0 V with an excellent rate capability, followed by a high reversible capacity of 966.1 mAh g-1 at 2 C with a low capacity decay rate of 0.099% per cycle over 500 cycles, outperformed the current state-of-the-art cathode materials for LSBs. The observed excellent electrochemical performance can be attributed to a 3D "sandwich-like" structure of S-GnPs with an enhanced ionic conductivity and lithium insertion/extraction capacity during the discharge-charge process. Furthermore, a low-cost porous carbon paper pyrolyzed from common filter paper was inserted between the 0.7S-0.3GnP electrode and porous polypropylene film separator to reduce/eliminate the dissolution of physically adsorbed polysulfide into the electrolyte and subsequent cross-deposition on the anode, leading to further improved capacity and cycling stability. | - |
dc.identifier.bibliographicCitation | ACS NANO, v.8, no.10, pp.10920 - 10930 | - |
dc.identifier.doi | 10.1021/nn5047585 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.scopusid | 2-s2.0-84908452486 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/9166 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84908452486 | - |
dc.identifier.wosid | 000343952600131 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Sulfur-graphene nanostructured cathodes via ball-milling for high-performance lithium-sulfur batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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