Issue 21, 2015

A high-performance nanoporous Si/Al2O3 foam lithium-ion battery anode fabricated by selective chemical etching of the Al–Si alloy and subsequent thermal oxidation

Abstract

Nanostructured micrometer-sized Al–Si particles are synthesized via a facile selective etching process of Al–Si alloy powder. Subsequent thin Al2O3 layers are introduced on the Si foam surface via a selective thermal wet oxidation process of etched Al–Si particles. The resulting Si/Al2O3 foam anodes exhibit outstanding cycling stability (a capacity retention of 78% after 300 cycles at the C/5 rate) and excellent rate capability.

Graphical abstract: A high-performance nanoporous Si/Al2O3 foam lithium-ion battery anode fabricated by selective chemical etching of the Al–Si alloy and subsequent thermal oxidation

Supplementary files

Article information

Article type
Communication
Submitted
14 Dec 2014
Accepted
02 Feb 2015
First published
06 Feb 2015

Chem. Commun., 2015,51, 4429-4432

Author version available

A high-performance nanoporous Si/Al2O3 foam lithium-ion battery anode fabricated by selective chemical etching of the Al–Si alloy and subsequent thermal oxidation

G. Hwang, H. Park, T. Bok, S. Choi, S. Lee, I. Hwang, N. Choi, K. Seo and S. Park, Chem. Commun., 2015, 51, 4429 DOI: 10.1039/C4CC09956G

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