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Nanomaterials 2015, 5(4), 2380-2390; doi:10.3390/nano5042380

Freestanding rGO-SWNT-STN Composite Film as an Anode for Li Ion Batteries with High Energy and Power Densities

1,†
,
2,†
and
2,*
1
School of Materials Science and Engineering, Yeungnam University, Gyeongsan 712-749, Korea
2
Department of Energy Engineering, Hanyang University, Seoul 133-791, Korea
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Andy (Xueliang) Sun and Xifei Li
Received: 13 October 2015 / Revised: 27 November 2015 / Accepted: 2 December 2015 / Published: 18 December 2015
(This article belongs to the Special Issue Nanostructured Materials for Li-Ion Batteries and Beyond)
View Full-Text   |   Download PDF [1760 KB, uploaded 18 December 2015]   |  

Abstract

Freestanding Si-Ti-Ni alloy particles/reduced graphene oxide/single wall carbon nanotube composites have been prepared as an anode for lithium ion batteries via a simple filtration method. This composite electrode showed a 9% increase in reversible capacity, a two-fold higher cycle retention at 50 cycles and a two-fold higher rate capability at 2 C compared to pristine Si-Ti-Ni (STN) alloy electrodes. These improvements were attributed to the suppression of the pulverization of the STN active material by the excellent mechanical properties of the reduced graphene oxide-single wall carbon nanotube networks and the enhanced kinetics associated with both electron and Li ion transport. View Full-Text
Keywords: Si-Ti-Ni alloy; graphene; carbon nanotubes; freestanding electrode; Li ion batteries Si-Ti-Ni alloy; graphene; carbon nanotubes; freestanding electrode; Li ion batteries
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Song, T.; Choi, J.; Paik, U. Freestanding rGO-SWNT-STN Composite Film as an Anode for Li Ion Batteries with High Energy and Power Densities. Nanomaterials 2015, 5, 2380-2390.

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