There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 173 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 168 | - |
dc.citation.title | NANO TODAY | - |
dc.citation.volume | 7 | - |
dc.contributor.author | Kim, Sung-Wook | - |
dc.contributor.author | Nam, Kyung-Wan | - |
dc.contributor.author | Seo, Dong-Hwa | - |
dc.contributor.author | Hong, Jihyun | - |
dc.contributor.author | Kim, Hyungsub | - |
dc.contributor.author | Gwon, Hyeokjo | - |
dc.contributor.author | Kang, Kisuk | - |
dc.date.accessioned | 2023-12-22T05:07:30Z | - |
dc.date.available | 2023-12-22T05:07:30Z | - |
dc.date.created | 2019-12-03 | - |
dc.date.issued | 2012-06 | - |
dc.description.abstract | The quest for new positive electrodes for rechargeable lithium-ion batteries has been escalating in recent years. Until now, candidates of positive electrode were limited to crystals that contain both redox-active element (usually transition-metal) and lithium ion in the open framework with few exceptions. Here, we demonstrate lithium-free compounds, a material with little activity by itself, can be activated electrochemically by addition of LiF after the first charging. This general strategy is exemplified in various lithium-free iron compounds. Reversible lithium ion extraction and reinsertion take place for Fe2+F2, Fe2+ SO4, and Fe22+P2O7, when blended with LiF in nanoscale, in which a simultaneous valence change of Fe2+/3+ occurs above 3 V. FeF2-LiF could deliver 190 mAh g(-1) (similar to 3.53 V) at 50 mA g(-1) which is even higher energy density than that crystalline LiFePO4 can offer. Various combinations of blending are possible using this approach, which can bring a new branch of material group for positive electrodes in lithium-ion batteries. | - |
dc.identifier.bibliographicCitation | NANO TODAY, v.7, no.3, pp.168 - 173 | - |
dc.identifier.doi | 10.1016/j.nantod.2012.04.004 | - |
dc.identifier.issn | 1748-0132 | - |
dc.identifier.scopusid | 2-s2.0-84862018701 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30550 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S174801321200045X?via%3Dihub | - |
dc.identifier.wosid | 000306031800006 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Energy storage in composites of a redox couple host and a lithium ion host | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Li -ion batteries | - |
dc.subject.keywordAuthor | Electrochemistry | - |
dc.subject.keywordAuthor | Positive electrode | - |
dc.subject.keywordAuthor | Composite materials | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | NANOCOMPOSITE | - |
dc.subject.keywordPlus | FLUORIDE | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.