Honeycomb-Structured Silicon: Remarkable Morphological Changes Induced by Electrochemical (De)Lithiation

Arrays of silicon honeycombs are evaluated as a negative electrode material for lithium‐ion microbatteries. The morphological changes of the structure are investigated by means of scanning electron microscopy (SEM) and it is revealed that the honeycomb structure can reversibly withstand huge mechani...

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Veröffentlicht in:	Advanced materials (Weinheim) 2011-04, Vol.23 (13), p.1563-1566
Hauptverfasser:	Baggetto, Loïc, Danilov, Dmitry, Notten, Peter H. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Electrochemistry Lithium - chemistry lithium-ion electrodes morphological changes nanostructured architecture Silicon - chemistry silicon honeycombs Surface Properties volume change calculations
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Beschreibung
Zusammenfassung:	Arrays of silicon honeycombs are evaluated as a negative electrode material for lithium‐ion microbatteries. The morphological changes of the structure are investigated by means of scanning electron microscopy (SEM) and it is revealed that the honeycomb structure can reversibly withstand huge mechanical deformations. Free‐standing structures are envisioned to serve advanced future applications, such as switchable sieves and microelectromechanical systems.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201003665