A high-performance nanoporous Si/Al<inf>2</inf>O<inf>3</inf> foam lithium-ion battery anode fabricated by selective chemical etching of the Al-Si alloy and subsequent thermal oxidation

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Journal Article
Chemical Communications, 2015, 51 (21), pp. 4429 - 4432
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© 2015 The Royal Society of Chemistry. 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.
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