Mesoporous carbon-Cr 2O 3 composite as an anode material for lithium ion batteries

Mesoporous carbon-Cr 2O 3 (M-C-Cr 2O 3) composite was prepared by co-assembly of in situ formed phenolic resin, chromium precursor, and Pluronic block copolymer under acidic conditions, followed by carbonization at 750 °C under Argon. The TEM results confirmed that the Cr 2O 3 nanoparticles, ranging from 10 to 20 nm, were well dispersed in the matrix of mesoporous carbon. The composite exhibited an initial reversible capacity of 710 mAh g ^-1 and good cycling stability, which is mainly due to the synergic effects of carbons within the composites, i.e. confining the crystal growth of Cr 2O 3 during the high temperature treatment step and buffering the volume change of Cr 2O 3 during the cycling step. This composite material is a promising anode material for lithium ion batteries. © 2011 Elsevier B.V. All rights reserved.

Duke Scholars

Author Miaofang Chi Thomas Lord Department of Mechanical Engineering and Materia ...