DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, H | ko |
dc.contributor.author | Yang, Jeong Woo | ko |
dc.contributor.author | Gim,H | ko |
dc.contributor.author | Hwang, B | ko |
dc.contributor.author | Byeon, A Yeong | ko |
dc.contributor.author | Lee, KH | ko |
dc.contributor.author | Lee, Jae Woo | ko |
dc.date.accessioned | 2022-02-18T06:41:24Z | - |
dc.date.available | 2022-02-18T06:41:24Z | - |
dc.date.created | 2022-01-19 | - |
dc.date.created | 2022-01-19 | - |
dc.date.created | 2022-01-19 | - |
dc.date.created | 2022-01-19 | - |
dc.date.created | 2022-01-19 | - |
dc.date.issued | 2022-03 | - |
dc.identifier.citation | ELECTROCHIMICA ACTA, v.408, pp.139924 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://hdl.handle.net/10203/292278 | - |
dc.description.abstract | Lithium-sulfur (Li-S) batteries have the potential to provide high energy density but they suffer from shuttling phenomena that are detrimental to cyclic stability in such a way that lithium polysulfides gradually diffuse out from the cathode interface. We employed the pyrolysis residue from waste plastics for a carbon source and applied it as a cathode sulfur host for Li-S batteries to limit the shuttle effect. Annealing with the aid of KOH and the subsequent ammonia thermal treatment endowed the residue with hierarchical porosity that reached 30% mesoporosity of the total pore volume. N-defects were significantly introduced in carbon networks with edge-positioned states, which helped them chemically interact with Li moieties in the polysulfides. Furthermore, titanium sub-dioxide (TiO2-x) was formed as impurities after the thermal treatment effectively suppressed diffusion of the intermediates. Based on the coupled effect of both N-defects and TiO2-x, the prepared carbon contributed to retarding the decay rate of discharge capacity, and its decay rate decreased to 0.089% per cycle at 1 C until 500 cycles with a capacity of higher than 500 mAh g−1. This study offers a precedent for practical green design of waste plastic residues as a carbon source. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Coupled effect of TiO2-x and N defects in pyrolytic waste plastics-derived carbon on anchoring polysulfides in the electrode of Li-S batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000778822000009 | - |
dc.identifier.scopusid | 2-s2.0-85123364334 | - |
dc.type.rims | ART | - |
dc.citation.volume | 408 | - |
dc.citation.beginningpage | 139924 | - |
dc.citation.publicationname | ELECTROCHIMICA ACTA | - |
dc.identifier.doi | 10.1016/j.electacta.2022.139924 | - |
dc.contributor.localauthor | Lee, Jae Woo | - |
dc.contributor.nonIdAuthor | Kim, H | - |
dc.contributor.nonIdAuthor | Gim,H | - |
dc.contributor.nonIdAuthor | Hwang, B | - |
dc.contributor.nonIdAuthor | Lee, KH | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Pyrolytic waste plastics-derived carbon | - |
dc.subject.keywordAuthor | N defect | - |
dc.subject.keywordAuthor | TiO2-x | - |
dc.subject.keywordAuthor | Lithium-sulfur battery | - |
dc.subject.keywordPlus | REDUCED GRAPHENE OXIDE | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | DOPED GRAPHENE | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | SULFUR | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | HOST | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | BORON | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
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