Wednesday, February 18, 2009

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


Arava Leela Mohana Reddy, Manikoth M. Shaijumon, Sanketh R. Gowda and Pulickel M. Ajayan*
Department of Mechanical Engineering & Materials Science, and Department of Chemical & Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005
Nano Lett., Article ASAP
DOI: 10.1021/nl803081j
Publication Date (Web): February 2, 2009
Copyright © 2009 American Chemical Society

Department of Mechanical Engineering & Materials Science.


Department of Chemical & Biomolecular Engineering.

* To whom correspondence should be addressed,


Abstract Image

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.