Jump to main content
Jump to site search

Issue 45, 2015
Previous Article Next Article

Cubic and octahedral Cu2O nanostructures as anodes for lithium-ion batteries

Author affiliations

Abstract

Well-defined nanostructured electrodes are known to have improved lithium ion reaction properties for lithium-ion batteries. Herein, we prepared shape-controlled Cu2O nanostructures as an anode material using ascorbic acid as a reducing agent with and without polyvinylpyrrolidone (PVP) as a surfactant. Using scanning electron microscopy, transmission electron microscopy, and X-ray diffraction methods, we observed that the sample prepared in the absence of PVP exhibited cubes with dominant {100} facets, whereas octahedral Cu2O nanostructures with dominant {111} facets were formed in the presence of PVP. During the charge–discharge process, an octahedron-shaped Cu2O nanostructured electrode having {111} facets favourable for lithium ion transport revealed an enhanced conversion reaction mechanism with high reversible capacity and high rate cycling performance, due to its low charge transfer resistance and high lithium ion diffusion coefficient.

Graphical abstract: Cubic and octahedral Cu2O nanostructures as anodes for lithium-ion batteries

Back to tab navigation

Article information


Submitted
17 Jul 2015
Accepted
06 Oct 2015
First published
07 Oct 2015

J. Mater. Chem. A, 2015,3, 23003-23010
Article type
Paper

Cubic and octahedral Cu2O nanostructures as anodes for lithium-ion batteries

M. Kim, S. Kim, S. Han, D. Kwak, E. Hwang, D. Kim, G. Lee, H. Choe and K. Park, J. Mater. Chem. A, 2015, 3, 23003
DOI: 10.1039/C5TA05455A

Social activity

Search articles by author

Spotlight

Advertisements