Please use this identifier to cite or link to this item: https://doi.org/10.1039/c3ta13268d
Title: N-doped carbon encapsulation of ultrafine silicon nanocrystallites for high performance lithium ion storage
Authors: Ma, Y.
Ji, G.
Ding, B.
Lee, J.Y. 
Issue Date: 21-Nov-2013
Source: Ma, Y., Ji, G., Ding, B., Lee, J.Y. (2013-11-21). N-doped carbon encapsulation of ultrafine silicon nanocrystallites for high performance lithium ion storage. Journal of Materials Chemistry A 1 (43) : 13625-13631. ScholarBank@NUS Repository. https://doi.org/10.1039/c3ta13268d
Abstract: A scalable method has been developed to encapsulate silicon (Si) nanocrystallites in a mesoporous N-doped carbon matrix for use as the anode in rechargeable lithium-ion batteries. The deliberate use of ionic liquid as the carbon source and pore size engineering of the SiO2 precursor in the synthesis not only produced the ultrafine Si nanocrystals and the mesoporous N-doped carbon matrix, but also their tight integration into a composite (IL-C-Si-MS) with mixed-conducting (ionic/electronic) properties and effective cushioning of the Si volume change during cycling. The good cyclability and rate performance of IL-C-Si-MS demonstrates the effectiveness of this N-doped carbon encapsulation technique for addressing the instability issues of Si-based anodes. This journal is © The Royal Society of Chemistry 2013.
Source Title: Journal of Materials Chemistry A
URI: http://scholarbank.nus.edu.sg/handle/10635/89573
ISSN: 20507488
DOI: 10.1039/c3ta13268d
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