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Lee, Hyun-Wook
Energy Storage and Electron Microscopy Laboratory
Research Interests
  • Energy storage, secondary batteries, transmission electron microscopy, real time analysis

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A phosphorene–graphene hybrid material as a high-capacity anode for sodium-ion batteries

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dc.contributor.author Sun, Jie ko
dc.contributor.author Lee, Hyun-Wook ko
dc.contributor.author Pasta, Mauro ko
dc.contributor.author Yuan, Hongtao ko
dc.contributor.author Zheng, Guangyuan ko
dc.contributor.author Sun, Yongming ko
dc.contributor.author Li, Yuzhang ko
dc.contributor.author Cui, Yi ko
dc.date.available 2016-01-26T06:39:50Z -
dc.date.created 2016-01-22 ko
dc.date.issued 2015-11 -
dc.identifier.citation NATURE NANOTECHNOLOGY, v.10, no.11, pp.980 - 985 ko
dc.identifier.issn 1748-3387 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/18207 -
dc.identifier.uri http://www.nature.com/nnano/journal/v10/n11/full/nnano.2015.194.html ko
dc.description.abstract Sodium-ion batteries have recently attracted significant attention as an alternative to lithium-ion batteries because sodium sources do not present the geopolitical issues that lithium sources might. Although recent reports on cathode materials for sodium-ion batteries have demonstrated performances comparable to their lithium-ion counterparts, the major scientific challenge for a competitive sodium-ion battery technology is to develop viable anode materials. Here we show that a hybrid material made out of a few phosphorene layers sandwiched between graphene layers shows a specific capacity of 2,440â �...mAâ �...hâ �...g â '1 (calculated using the mass of phosphorus only) at a current density of 0.05â �...Aâ �...g â '1 and an 83% capacity retention after 100 cycles while operating between 0 and 1.5â �...V. Using in situ transmission electron microscopy and ex situ X-ray diffraction techniques, we explain the large capacity of our anode through a dual mechanism of intercalation of sodium ions along the x axis of the phosphorene layers followed by the formation of a Na 3 P alloy. The presence of graphene layers in the hybrid material works as a mechanical backbone and an electrical highway, ensuring that a suitable elastic buffer space accommodates the anisotropic expansion of phosphorene layers along the y and z axial directions for stable cycling operation. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher NATURE PUBLISHING GROUP ko
dc.subject SOLID-ELECTROLYTE INTERPHASE ko
dc.subject BLACK PHOSPHORUS ko
dc.subject RECHARGEABLE BATTERIES ko
dc.subject NEGATIVE ELECTRODE ko
dc.subject LITHIUM-ION ko
dc.subject COMPOSITE ko
dc.subject INSERTION ko
dc.subject GRAPHITE ko
dc.subject STORAGE ko
dc.subject RAMAN ko
dc.title A phosphorene–graphene hybrid material as a high-capacity anode for sodium-ion batteries ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84947024542 ko
dc.identifier.wosid 000364528300016 ko
dc.type.rims ART ko
dc.description.wostc 5 *
dc.description.scopustc 0 *
dc.date.tcdate 2016-01-29 *
dc.identifier.doi 10.1038/nnano.2015.194 ko
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