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Open AccessCommunication

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

by Taeseup Song 1,†, Junghyun Choi 2,† and Ungyu Paik 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
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Andy (Xueliang) Sun and Xifei Li
Nanomaterials 2015, 5(4), 2380-2390; https://doi.org/10.3390/nano5042380
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)
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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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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