DC Field | Value | Language |
---|---|---|
dc.contributor.author | Duc Tung Ngo | ko |
dc.contributor.author | Le, Hang T. T. | ko |
dc.contributor.author | Kim, Chanhoon | ko |
dc.contributor.author | Lee, Jae-Young | ko |
dc.contributor.author | Fisher, John G. | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Park, Chan-Jin | ko |
dc.date.accessioned | 2016-05-16T08:59:54Z | - |
dc.date.available | 2016-05-16T08:59:54Z | - |
dc.date.created | 2015-12-15 | - |
dc.date.created | 2015-12-15 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.citation | ENERGY ENVIRONMENTAL SCIENCE, v.8, no.12, pp.3577 - 3588 | - |
dc.identifier.issn | 1754-5692 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207553 | - |
dc.description.abstract | Electrode materials with three-dimensional (3D) mesoporous structures possess superior features, such as a shortened solid-phase lithium diffusion distance, a large pore volume, full lithium ion accessibility, and a high specific area, which can facilitate fast lithium ion transport and electron transfer between solid/electrolyte interfaces. In this work, we introduce a facile synthesis route for the preparation of a 3D nanoarchitecture of Ge coated with carbon (3D-Ge/C) via a carbothermal reduction method in an inert atmosphere. 3D-Ge/C showed excellent cyclability: almost 86.8% capacity retention, corresponding to a charge capacity of 1216 mA h g(-1) even after 1000 cycles at a 2C-rate. Surprisingly, the high average reversible capacity of 1122 mA h g(-1) was maintained at a high charge rate of 100C (160 A g(-1)). Even at an ultrahigh charge rate of 400C (640 A g(-1)), an average capacity of 429 mA h g(-1) was attained. Further, the full cell composed of a 3D-Ge/C anode and an LiCoO2 cathode exhibited excellent rate capability and cyclability with 94.7% capacity retention over 50 cycles. 3D-Ge/C, which offers a high energy density like batteries as well as a high power density like supercapacitors, is expected to be used in a wide range of electrochemical devices. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | NEGATIVE ELECTRODES | - |
dc.subject | SILICON ANODES | - |
dc.subject | RAMAN-SPECTRA | - |
dc.subject | PERFORMANCE | - |
dc.subject | GE | - |
dc.subject | NANOWIRES | - |
dc.subject | GRAPHENE | - |
dc.subject | NANOSTRUCTURES | - |
dc.title | Mass-scalable synthesis of 3D porous germanium-carbon composite particles as an ultra-high rate anode for lithium ion batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000365412300015 | - |
dc.identifier.scopusid | 2-s2.0-84948445731 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 12 | - |
dc.citation.beginningpage | 3577 | - |
dc.citation.endingpage | 3588 | - |
dc.citation.publicationname | ENERGY ENVIRONMENTAL SCIENCE | - |
dc.identifier.doi | 10.1039/C5EE02183A | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Duc Tung Ngo | - |
dc.contributor.nonIdAuthor | Le, Hang T. T. | - |
dc.contributor.nonIdAuthor | Lee, Jae-Young | - |
dc.contributor.nonIdAuthor | Fisher, John G. | - |
dc.contributor.nonIdAuthor | Park, Chan-Jin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | NEGATIVE ELECTRODES | - |
dc.subject.keywordPlus | SILICON ANODES | - |
dc.subject.keywordPlus | RAMAN-SPECTRA | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GE | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
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