Porous Zn2GeO4 nanowires with uniform carbon-buffer layer for lithium-ion battery anodes with long cycle life
DC Field | Value | Language |
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dc.contributor.author | Kim, Jung Sub | - |
dc.contributor.author | Kim, A-Young | - |
dc.contributor.author | Byeon, Young Woon | - |
dc.contributor.author | Ahn, Jae Pyoung | - |
dc.contributor.author | Byun, Dongjin | - |
dc.contributor.author | Lee, Joong Kee | - |
dc.date.accessioned | 2021-09-04T01:30:00Z | - |
dc.date.available | 2021-09-04T01:30:00Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2016-03-20 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/89194 | - |
dc.description.abstract | Germanium-based multimetallic-oxide materials have attracted significant attention as high-capacity anodes for next generation lithium-ion batteries (LIBs). However, they suffer from poor cyclic stability due to extreme volume expansion and reduced electrical conductivity after repeated cycles. To circumvent these issues, we propose that Ge-based multimetallic-oxide nanowires can be synthesized with electrically conductive carbon to significantly enhance the cyclic stability of the Ge-based anodes. We prepare conformal-carbon-coated Zn2GeO4 nanowires (NWs) using a microwave-induced hydrothermal method with subsequent thermal decomposition. The obtained carbon-coated Zn2GeO4-NW anode exhibits a discharge capacity of 485 mAh/g and a Coulombic efficiency (CE) of 98.4% after 900 cycles at 0.6 C. Furthermore, these anodes exhibit outstanding rate-capability characteristics, even with an increased C-rate of 17.7 C. This excellent electrochemical performance can be ascribed to the improved electron and ion transport provided and the structurally reinforced conductive layer comprising a conformal carbon layer. Therefore, it is expected that our approach can also be applied to other multimetallic-oxide materials, resulting in large, reversible capacities; excellent cyclic stabilities; and good rate capabilities for high-performance LIBs. (C) 2016 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | ELECTROCHEMICAL LITHIATION | - |
dc.subject | GE | - |
dc.subject | PERFORMANCE | - |
dc.subject | CAPACITY | - |
dc.subject | SILICON | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | ELECTRODES | - |
dc.title | Porous Zn2GeO4 nanowires with uniform carbon-buffer layer for lithium-ion battery anodes with long cycle life | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Byun, Dongjin | - |
dc.identifier.doi | 10.1016/j.electacta.2016.02.118 | - |
dc.identifier.scopusid | 2-s2.0-84959364789 | - |
dc.identifier.wosid | 000372524300006 | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.195, pp.43 - 50 | - |
dc.relation.isPartOf | ELECTROCHIMICA ACTA | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 195 | - |
dc.citation.startPage | 43 | - |
dc.citation.endPage | 50 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.subject.keywordPlus | ELECTROCHEMICAL LITHIATION | - |
dc.subject.keywordPlus | GE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | SILICON | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordAuthor | Zn2GeO4 | - |
dc.subject.keywordAuthor | nanowires | - |
dc.subject.keywordAuthor | carbon-buffer layers | - |
dc.subject.keywordAuthor | long cycle life | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
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