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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 799 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 797 | - |
dc.citation.title | Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica | - |
dc.citation.volume | 32 | - |
dc.contributor.author | JI, Heng-Xing | - |
dc.contributor.author | Ruoff, Rodney S. | - |
dc.date.accessioned | 2023-12-22T00:07:58Z | - |
dc.date.available | 2023-12-22T00:07:58Z | - |
dc.date.created | 2016-03-21 | - |
dc.date.issued | 2016-03 | - |
dc.description.abstract | Lithium-sulfur (Li-S) batteries offer a high theoretical energy density of 2567 W?h?kg-1 by the multi-electron-transfer cathode reaction between elemental sulfur and lithium ions, and are a focus of post lithium-ion batteries technology1. Yet, there are challenging obstacles standing in the way of the large-scale application of the Li-S technology in the market, which include the potential safety risky of Li- dendrite formation, low electrical conductivity of sulfur (5*10-30 S?cm-1 at 25 °C), the dissolution of the charge/discharge intermediates, polysulfides (Li2Sx, 4 ≤ x ≤ 8) in the electrolyte, and the volume change of the sulfur during lithiation/delithiation (~80%)2. Carbon materials are commonly used as the host to accommodate sulfur to address the issues relevant to the sulfur-cathode owning to their diversity, conductivity, robust stability and chemistry, and their ready abundance and cost3. A carbon host with sulfur nanoparticles adhered can conduct electrons generated by sulfur lithiation/delithiation, limit the dissolution of polysulfides, and withstand the volume change of the sulfur; it therefore can provide an improved specific capacity, rate capability, and cyclic life. However, these improvements are closely connected to both the mass ratio of sulfur in such a sulfur/carbon composite and the areal loading density of sulfur in the cathode. Higher mass ratio and areal loading density of sulfur are favored for practical Li- S battery application, but are usually accompanied by lower‘sulfur utility’that yields reduced specific capacity, rate capability, and cycle life. | - |
dc.identifier.bibliographicCitation | Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica, v.32, no.3, pp.797 - 799 | - |
dc.identifier.doi | 10.3866/PKU.WHXB201602192 | - |
dc.identifier.issn | 1000-6818 | - |
dc.identifier.scopusid | 2-s2.0-84960080062 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/18849 | - |
dc.identifier.url | http://www.whxb.pku.edu.cn/EN/10.3866/PKU.WHXB201602192 | - |
dc.identifier.wosid | 000372669700026 | - |
dc.language | 중국어 | - |
dc.publisher | PEKING UNIV PRESS | - |
dc.title | Low-cost synthesis route for high-performance S/C composite with 90% S content | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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