DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Sung-Wook | ko |
dc.contributor.author | Nam, Kyung-Wan | ko |
dc.contributor.author | Seo, Dong-Hwa | ko |
dc.contributor.author | Hong, Ji-Hyun | ko |
dc.contributor.author | Kim, Hyung-Sub | ko |
dc.contributor.author | Gwon, Hyeok-Jo | ko |
dc.contributor.author | Kang, Ki-Suk | ko |
dc.date.accessioned | 2013-03-13T01:49:27Z | - |
dc.date.available | 2013-03-13T01:49:27Z | - |
dc.date.created | 2012-08-21 | - |
dc.date.created | 2012-08-21 | - |
dc.date.created | 2012-08-21 | - |
dc.date.created | 2012-08-21 | - |
dc.date.issued | 2012-06 | - |
dc.identifier.citation | NANO TODAY, v.7, no.3, pp.168 - 173 | - |
dc.identifier.issn | 1748-0132 | - |
dc.identifier.uri | http://hdl.handle.net/10203/104161 | - |
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. (C) 2012 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
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.identifier.wosid | 000306031800006 | - |
dc.identifier.scopusid | 2-s2.0-84862018701 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 168 | - |
dc.citation.endingpage | 173 | - |
dc.citation.publicationname | NANO TODAY | - |
dc.identifier.doi | 10.1016/j.nantod.2012.04.004 | - |
dc.contributor.localauthor | Seo, Dong-Hwa | - |
dc.contributor.localauthor | Kang, Ki-Suk | - |
dc.contributor.nonIdAuthor | Kim, Sung-Wook | - |
dc.contributor.nonIdAuthor | Nam, Kyung-Wan | - |
dc.contributor.nonIdAuthor | Hong, Ji-Hyun | - |
dc.contributor.nonIdAuthor | Kim, Hyung-Sub | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordAuthor | Li -ion batteries | - |
dc.subject.keywordAuthor | Electrochemistry | - |
dc.subject.keywordAuthor | Positive electrode | - |
dc.subject.keywordAuthor | Composite materials | - |
dc.subject.keywordPlus | METAL FLUORIDE NANOCOMPOSITES | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMISTRY | - |
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