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Core/shell (Cu/Cu2O) nanotubes as high performance anode materials for Li-ion rechargeable batteries
Hasan, Maksudul; Chowdhury, Tamjid; Rohan, James F.
A direct electrodeposition technique for very high quality Cu nanotube arrays and subsequent conversion of the deposited Cu into Cu2O has been developed. The Cu2O nanotube arrays have high capacity, high cyclability and high rate capability. The cycling performance of Cu2O nanotubes show a high level of structural integrity with capacity retention even after 94 cycles when cycled at 1.67 mA/cm2. The outstanding electrochemical performance of the Cu2O nanotubes comes from high surface area, easy infiltration of electrolytes, high electrical conductivity of Cu core support and structural integrity of the oxide shell active material. The Cu2O nanotubes also eliminate the requirement of ancillary materials currently used in Li-ion batteries, such as carbon particles to increase conductivity. The easy fabrication and performance of Cu2O nanotube arrays may make them suitable for next generation Li-ion batteries.
Keyword(s): Nanotubes; Anodes; Electric conductivity; Energy storage; Flywheels; Ions; Lithium compounds; Nanostructured materials; Structural integrity; Active material; Capacity retention; Carbon particle; Core/shellCu nanotubes; Cyclability; Cycling performance; Easy fabrication; Electrochemical performance; Electrodeposition technique; High capacity; High electrical conductivity
Publication Date:
2009
Type: Journal article
Peer-Reviewed: Yes
Language(s): English
Institution: University College Cork
Funder(s): Enterprise Ireland
Citation(s): Hasan, M., Chowdhury, T. and Rohan, J. (2009) 'Core/Shell (Cu/Cu2O) Nanotubes as High Performance Anode Materials for Li-ion Rechargeable Batteries', ECS Transactions, 19(27), pp. 3-15. doi: 10.1149/1.3265864
Publisher(s): Electrochemical Society
File Format(s): application/pdf
Related Link(s): http://ecst.ecsdl.org/content/19/27/3
First Indexed: 2019-03-12 06:31:44 Last Updated: 2019-03-12 06:31:44