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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 1798 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 1790 | - |
dc.citation.title | ENERGY & ENVIRONMENTAL SCIENCE | - |
dc.citation.volume | 8 | - |
dc.contributor.author | Kim, Jae Chul | - |
dc.contributor.author | Seo, Dong-Hwa | - |
dc.contributor.author | Ceder, Gerbrand | - |
dc.date.accessioned | 2023-12-22T01:08:39Z | - |
dc.date.available | 2023-12-22T01:08:39Z | - |
dc.date.created | 2019-12-03 | - |
dc.date.issued | 2015-06 | - |
dc.description.abstract | Simple borates are attractive cathodes for lithium-ion batteries due to two main reasons: covalently bonded anions provide operating stability through suppressed oxygen loss, and the borate group (BO3) possesses the highest theoretical specific capacity for one-electron polyanion systems. In this work, we demonstrate an electrochemically superior lithium borate (LiMn0.5Fe0.4Mg0.1BO3) that delivers a near theoretical capacity (98%) of 201 mA h g(-1) at C/50, an improved rate capability of 120 mA h g(-1) at 1 C, and good capacity retention. Using ab initio modeling, the superior Li intercalation activity is explained by both stabilization of the delithiated state and increased topological cation disorder, which counter-intuitively facilitates Li transport. Our results indicate that through engineering of defect chemistry, the basic mechanism can be modified from one-dimensional to three-dimensional conduction, thereby improving kinetics. Combined with the inherent stability of the borate group, the enhanced electrochemical properties should reinvigorate search in borate chemistry for new safe and high-energy cathode materials. | - |
dc.identifier.bibliographicCitation | ENERGY & ENVIRONMENTAL SCIENCE, v.8, no.6, pp.1790 - 1798 | - |
dc.identifier.doi | 10.1039/c5ee00930h | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.scopusid | 2-s2.0-84930718354 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30529 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2015/EE/C5EE00930H#!divAbstract | - |
dc.identifier.wosid | 000355985700017 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Theoretical capacity achieved in a LiMn0.5Fe0.4Mg0.1BO3 cathode by using topological disorder | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | LI-ION BATTERIES | - |
dc.subject.keywordPlus | RECHARGEABLE LITHIUM BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | HOLLOW MICROSPHERES | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURE | - |
dc.subject.keywordPlus | MONOCLINIC LIMNBO3 | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | PERSPECTIVE | - |
dc.subject.keywordPlus | CHALLENGES | - |
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