Coaxial MnO2/Carbon Nanotube Array Electrodes for High-Performance Lithium Batteries

Coaxial manganese oxide/carbon nanotube (CNT) arrays deposited inside porous alumina templates were used as cathodes in a lithium battery. Excellent cyclic stability and capacity of MnO2/CNT coaxial nanotube electrodes resulted from the hybrid nature of the electrodes with improved electronic conduc...

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Veröffentlicht in:	Nano letters 2009-03, Vol.9 (3), p.1002-1006
Hauptverfasser:	Reddy, Arava Leela Mohana, Shaijumon, Manikoth M, Gowda, Sanketh R, Ajayan, Pulickel M
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemical synthesis methods Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport in multilayers, nanoscale materials and structures Exact sciences and technology Materials science Methods of nanofabrication Nanocrystalline materials Nanoscale materials and structures: fabrication and characterization Nanotubes Physics
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Beschreibung
Zusammenfassung:	Coaxial manganese oxide/carbon nanotube (CNT) arrays deposited inside porous alumina templates were used as cathodes in a lithium battery. Excellent cyclic stability and capacity of MnO2/CNT coaxial nanotube electrodes resulted from the hybrid nature of the electrodes with improved electronic conductivity and dual mechanism of lithium storage. The reversible capacity of the battery was increased by an order compared to template grown MnO2 nanotubes, making them suitable electrodes for advanced Li ion batteries.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl803081j