期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 148, 期 11, 页码 A1247-A1253出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.1407831
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Membrane-based template synthesis was used to prepare nanostructured V2O5 electrodes with high Li-insertion rate capabilities and improved volumetric charge capacities. Two methods were used to increase volumetric capacity. The first entailed chemically etching the template membrane prior to template-synthesis of the V2O5 within the pores of the membrane. Chemical etching increased both the pore diameter and porosity of the membrane. Nanostructured electrodes were prepared by depositing an alkoxide V2O5 precursor within the pores of the etched template membranes. The resulting electrodes consisted of V2O5 nanofibrils protruding from a Pt current collector surface like the bristles of a brush. The second approach for increasing volumetric capacity entailed applying additional V2O5 to the nanostructured electrodes prepared from the etched membranes. Results of investigations of the volumetric and geometric rate capabilities and the cycling performance of these electrodes are presented here. (C) 2001 The Electrochemical Society.
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