DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Won-Gwang | ko |
dc.contributor.author | Park, Cheol-Young | ko |
dc.contributor.author | Jung, Hyeonjung | ko |
dc.contributor.author | Kim, Seoa | ko |
dc.contributor.author | Kang, Seok Hun | ko |
dc.contributor.author | Lee, Young-Gi | ko |
dc.contributor.author | Jeong, Yo Chan | ko |
dc.contributor.author | Yang, Seung Bo | ko |
dc.contributor.author | Sohn, Kwonnam | ko |
dc.contributor.author | Han, Jeong Woo | ko |
dc.contributor.author | Lee, Jinwoo | ko |
dc.date.accessioned | 2023-03-22T06:01:50Z | - |
dc.date.available | 2023-03-22T06:01:50Z | - |
dc.date.created | 2023-02-06 | - |
dc.date.created | 2023-02-06 | - |
dc.date.issued | 2023-03 | - |
dc.identifier.citation | ADVANCED MATERIALS, v.35, no.10 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | http://hdl.handle.net/10203/305730 | - |
dc.description.abstract | High-energy and long cycle lithium-sulfur (Li-S) pouch cells are limited by the insufficient capacities and stabilities of their cathodes under practical electrolyte/sulfur (E/S), electrolyte/capacity (E/C), and negative/positive (N/P) ratios. Herein, an advanced cathode comprising highly active Fe single-atom catalysts (SACs) is reported to form 320.2 W h kg(-1) multistacked Li-S pouch cells with total capacity of approximate to 1 A h level, satisfying low E/S (3.0), E/C (2.8), and N/P (2.3) ratios and high sulfur loadings (8.4 mg cm(-2)). The high-activity Fe SAC is designed by manipulating its local environments using electron-exchangeable binding (EEB) sites. Introducing EEB sites comprising two different types of S species, namely, thiophene-like-S (-S) and oxidized-S (-SO2), adjacent to Fe SACs promotes the kinetics of the Li2S redox reaction by providing additional binding sites and modulating the Fe d-orbital levels via electron exchange with Fe. The -S donates the electrons to the Fe SACs, whereas -SO2 withdraws electrons from the Fe SACs. Thus, the Fe d-orbital energy level can be modulated by the different -SO2/-S ratios of the EEB site, controlling the electron donating/withdrawing characteristics. This desirable electrocatalysis is maximized by the intimate contact of the Fe SACs with the S species, which are confined together in porous carbon. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Cooperative Electronic Structure Modulator of Fe Single-Atom Electrocatalyst for High Energy and Long Cycle Li-S Pouch Cell | - |
dc.type | Article | - |
dc.identifier.wosid | 000911728800001 | - |
dc.identifier.scopusid | 2-s2.0-85146170754 | - |
dc.type.rims | ART | - |
dc.citation.volume | 35 | - |
dc.citation.issue | 10 | - |
dc.citation.publicationname | ADVANCED MATERIALS | - |
dc.identifier.doi | 10.1002/adma.202208999 | - |
dc.contributor.localauthor | Lee, Jinwoo | - |
dc.contributor.nonIdAuthor | Lim, Won-Gwang | - |
dc.contributor.nonIdAuthor | Jung, Hyeonjung | - |
dc.contributor.nonIdAuthor | Lee, Young-Gi | - |
dc.contributor.nonIdAuthor | Jeong, Yo Chan | - |
dc.contributor.nonIdAuthor | Yang, Seung Bo | - |
dc.contributor.nonIdAuthor | Sohn, Kwonnam | - |
dc.contributor.nonIdAuthor | Han, Jeong Woo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | electronic structure modulators | - |
dc.subject.keywordAuthor | high energy densities | - |
dc.subject.keywordAuthor | Li-S batteries | - |
dc.subject.keywordAuthor | pouch cells | - |
dc.subject.keywordAuthor | single atom catalysts | - |
dc.subject.keywordPlus | LITHIUM-SULFUR BATTERIES | - |
dc.subject.keywordPlus | ANCHORING MATERIAL | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | CATHODE | - |
dc.subject.keywordPlus | NITROGEN | - |
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