DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Jinkwan | ko |
dc.contributor.author | Chu, Hyunwon | ko |
dc.contributor.author | Kim, Ilju | ko |
dc.contributor.author | Lee, Dong Hyun | ko |
dc.contributor.author | Doo, Gisu | ko |
dc.contributor.author | Kwon, Hyeokjin | ko |
dc.contributor.author | Jo, Wonhee | ko |
dc.contributor.author | Kim, Sejin | ko |
dc.contributor.author | Cho, Hyenah | ko |
dc.contributor.author | Kim, Hee-Tak | ko |
dc.date.accessioned | 2023-06-07T07:01:36Z | - |
dc.date.available | 2023-06-07T07:01:36Z | - |
dc.date.created | 2023-04-17 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.citation | ADVANCED SCIENCE, v.10, no.15 | - |
dc.identifier.issn | 2198-3844 | - |
dc.identifier.uri | http://hdl.handle.net/10203/307094 | - |
dc.description.abstract | Salt anions with a high donor number (DN) enable high sulfur utilization in lithium-sulfur (Li-S) batteries by inducing three-dimensional (3D) Li2S growth. However, their insufficient compatibility with Li metal electrodes limits their cycling stability. Herein, a new class of salt anion, thiocyanate (SCN-), is presented, which features a Janus character of electron donor and acceptor. Due to a strong Li+ coordination by SCN- and the direct interaction of SCN- with polysulfide anions, the LiSCN electrolyte has a remarkably high lithium polysulfide solubility. This electrolyte induces 3D Li2S formation and ameliorates cathode passivation, even more than Br-, a typical high DN anion. Moreover, SCN- forms a Li3N-enriched stable SEI layer at the surface of the Li metal electrode, enhancing cycling stability. A Li-S battery with the LiSCN electrolyte shows high current density operation (2.54 mA cm(-2)) with high discharge capacity (1133 mAh g(-1)) and prolonged cycle life (100 cycles). This work demonstrates that the cathode and anode performance in a Li-S battery can be simply and concurrently enhanced by the single salt anion. | - |
dc.language | English | - |
dc.publisher | WILEY | - |
dc.title | Confronting Sulfur Electrode Passivation and Li Metal Electrode Degradation in Lithium-Sulfur Batteries Using Thiocyanate Anion | - |
dc.type | Article | - |
dc.identifier.wosid | 000954101200001 | - |
dc.identifier.scopusid | 2-s2.0-85150935365 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 15 | - |
dc.citation.publicationname | ADVANCED SCIENCE | - |
dc.identifier.doi | 10.1002/advs.202301006 | - |
dc.contributor.localauthor | Kim, Hee-Tak | - |
dc.contributor.nonIdAuthor | Chu, Hyunwon | - |
dc.contributor.nonIdAuthor | Cho, Hyenah | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | acceptor number | - |
dc.subject.keywordAuthor | Gutmann donor number | - |
dc.subject.keywordAuthor | Li+ solvation shell | - |
dc.subject.keywordAuthor | Li3N-rich SEI layer | - |
dc.subject.keywordAuthor | lithium sulfur batteries | - |
dc.subject.keywordAuthor | thiocyanate anions | - |
dc.subject.keywordPlus | REDOX REACTIONS | - |
dc.subject.keywordPlus | DISCHARGE | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | ETHER | - |
dc.subject.keywordPlus | FILM | - |
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