Scalable synthesis of Si/C anode enhanced by FeSi<inf>x</inf> nanoparticles from low-cost ferrosilicon for lithium-ion batteries

He, W; Tian, H; Zhang, S; Ying, H; Meng, Z; Han, W

Scalable synthesis of Si/C anode enhanced by FeSi<inf>x</inf> nanoparticles from low-cost ferrosilicon for lithium-ion batteries

He, W Tian, H

Zhang, S Ying, H Meng, Z Han, W

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Publication Type:: Journal Article
Citation:: Journal of Power Sources, 2017, 353 pp. 270 - 276
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	He, W	en_US
dc.contributor.author	Tian, H https://orcid.org/0000-0002-3622-129X	en_US
dc.contributor.author	Zhang, S	en_US
dc.contributor.author	Ying, H	en_US
dc.contributor.author	Meng, Z	en_US
dc.contributor.author	Han, W https://orcid.org/0000-0001-5525-8277	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Journal of Power Sources, 2017, 353 pp. 270 - 276	en_US
dc.identifier.issn	0378-7753	en_US
dc.identifier.uri	http://hdl.handle.net/10453/125003
dc.description.abstract	© 2017 Elsevier B.V. Silicon is considered as the most promising anode for advanced lithium-ion batteries (LIBs) due to the high theoretical capacity of 3579 mAh g−1, but the complex and high-cost preparation processes have limited it's widespread applications. So given the practical application, it's all the more important that we should prepare excellent electrochemical performance anodes with large scale and low cost. Here we present a scalable synthesis for preparing the cost-effective Si/C anode enhanced by FeSix nanoparticles (FSC) directly from the low-grade Ferrosilicon source (∼1000 $/t). The formation of the amorphous carbon layer and FeSix nanocrystalline (FeSi & FeSi2) can act as buffer layer to mechanically support the volume expansion change during cycling. The FSC anode exhibits a high initial capacity of 1489 mAh g−1 and a prolonged cycle performance with 86% capacity retention over 100 cycles at 500 mA g−1. Moreover, the FSC anode delivers an excellent rate performance of 450 mAh g−1 at 10 A g−1 due to the enhancement of the electrical conductivity by the amorphous carbon layer and the highly conductive FeSix nanocrystalline. This scalable and cost-effective method for preparing Si/C anode provides the promising application potentials in next generation energy storage systems.	en_US
dc.relation.ispartof	Journal of Power Sources	en_US
dc.relation.isbasedon	10.1016/j.jpowsour.2017.04.019	en_US
dc.subject.classification	Energy	en_US
dc.title	Scalable synthesis of Si/C anode enhanced by FeSi<inf>x</inf> nanoparticles from low-cost ferrosilicon for lithium-ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	353	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	09 Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	353	en_US

Abstract:

© 2017 Elsevier B.V. Silicon is considered as the most promising anode for advanced lithium-ion batteries (LIBs) due to the high theoretical capacity of 3579 mAh g−1, but the complex and high-cost preparation processes have limited it's widespread applications. So given the practical application, it's all the more important that we should prepare excellent electrochemical performance anodes with large scale and low cost. Here we present a scalable synthesis for preparing the cost-effective Si/C anode enhanced by FeSix nanoparticles (FSC) directly from the low-grade Ferrosilicon source (∼1000 $/t). The formation of the amorphous carbon layer and FeSix nanocrystalline (FeSi & FeSi2) can act as buffer layer to mechanically support the volume expansion change during cycling. The FSC anode exhibits a high initial capacity of 1489 mAh g−1 and a prolonged cycle performance with 86% capacity retention over 100 cycles at 500 mA g−1. Moreover, the FSC anode delivers an excellent rate performance of 450 mAh g−1 at 10 A g−1 due to the enhancement of the electrical conductivity by the amorphous carbon layer and the highly conductive FeSix nanocrystalline. This scalable and cost-effective method for preparing Si/C anode provides the promising application potentials in next generation energy storage systems.

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http://hdl.handle.net/10453/125003