Publications
Detailed Information
Anchored Mediator Enabling Shuttle-Free Redox Mediation in Lithium-Oxygen Batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ko, Youngmin | - |
dc.contributor.author | Park, Hyunji | - |
dc.contributor.author | Lee, Kyunam | - |
dc.contributor.author | Kim, Sung Joo | - |
dc.contributor.author | Park, Hyeokjun | - |
dc.contributor.author | Bae, Youngjoon | - |
dc.contributor.author | Kim, Jihyeon | - |
dc.contributor.author | Park, Soo Young | - |
dc.contributor.author | Kwon, Ji Eon | - |
dc.contributor.author | Kang, Kisuk | - |
dc.date.accessioned | 2022-04-20T07:17:36Z | - |
dc.date.available | 2022-04-20T07:17:36Z | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | Angewandte Chemie - International Edition, Vol.59 No.13, pp.5376-5380 | - |
dc.identifier.issn | 1433-7851 | - |
dc.identifier.other | 122037 | - |
dc.identifier.uri | https://hdl.handle.net/10371/178497 | - |
dc.description.abstract | Redox mediators (RMs) are considered an effective countermeasure to reduce the large polarization in lithium-oxygen batteries. Nevertheless, achieving sufficient enhancement of the cyclability is limited by the trade-offs of freely mobile RMs, which are beneficial for charge transport but also trigger the shuttling phenomenon. Here, we successfully decoupled the charge-carrying redox property of RMs and shuttling phenomenon by anchoring the RMs in polymer form, where physical RM migration was replaced by charge transfer along polymer chains. Using PTMA (poly(2,2,6,6-tetramethyl-1-piperidinyloxy-4-yl methacrylate)) as a polymer model system based on the well-known RM tetramethylpiperidinyloxyl (TEMPO), it is demonstrated that PTMA can function as stationary RM, preserving the redox activity of TEMPO. The efficiency of RM-mediated Li2O2 decomposition remains remarkably stable without the consumption of oxidized RMs or degradation of the lithium anode, resulting in an improved performance of the lithium-oxygen cell. | - |
dc.subject | energy conversion;lithium-oxygen batteries;redox chemistry;redox mediator;shuttle phenomena | - |
dc.title | Anchored Mediator Enabling Shuttle-Free Redox Mediation in Lithium-Oxygen Batteries | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 강기석 | - |
dc.identifier.doi | 10.1002/anie.201916682 | - |
dc.citation.journaltitle | Angewandte Chemie - International Edition | - |
dc.identifier.scopusid | 2-s2.0-85079453690 | - |
dc.citation.endpage | 5380 | - |
dc.citation.number | 13 | - |
dc.citation.startpage | 5376 | - |
dc.citation.volume | 59 | - |
dc.identifier.sci | 000512827900001 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Kang, Kisuk | - |
- Appears in Collections:
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.