High performance carbon nanotube-Si core-shell wires with a rationally structured core for lithium ion battery anodes

Core-shell Si nanowires are very promising anode materials. Here, we synthesize vertically aligned carbon nanotubes (CNTs) with relatively large diameters and large inter-wire spacing as core wires and demonstrate a CNT-Si core-shell wire composite as a lithium ion battery (LIB) anode. Owing to the...

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Bibliographic Details
Published inNanoscale Vol. 5; no. 4; pp. 1503 - 1506
Main Authors Fan, Yu, Zhang, Qing, Lu, Congxiang, Xiao, Qizhen, Wang, Xinghui, Tay, Beng Kang
Format Journal Article
LanguageEnglish
Published England 01.01.2013
Subjects
Anodes
Carbon
Core wire
Electric Power Supplies
Electric Wiring
Electrodes
Equipment Design
Equipment Failure Analysis
Ions
Lithium - chemistry
Lithium - isolation & purification
Lithium batteries
Lithium-ion batteries
Nanostructure
Nanotubes - chemistry
Nanotubes - ultrastructure
Nanowires
Particle Size
Silicon
Silicon - chemistry
Wire
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Summary:Core-shell Si nanowires are very promising anode materials. Here, we synthesize vertically aligned carbon nanotubes (CNTs) with relatively large diameters and large inter-wire spacing as core wires and demonstrate a CNT-Si core-shell wire composite as a lithium ion battery (LIB) anode. Owing to the rationally engineered core structure, the composite shows good capacity retention and rate performance. The excellent performance is superior to most core-shell nanowires previously reported.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:2040-3364
2040-3372
DOI:10.1039/c3nr33683b