
Publica
Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten. Microstructural characterization of Li insertion in individual silicon nanowires
| Applied physics. A 117 (2014), Nr.3, S.973-979 ISSN: 0340-3793 ISSN: 0721-7250 ISSN: 0947-8396 (Print) ISSN: 1432-0630 (Online) |
|
| Englisch |
| Zeitschriftenaufsatz |
| Fraunhofer IWM ( IMWS) () |
Abstract
The lithiation and delithiation process of silicon nanowire arrays (SiNWs) on silicon substrates has been studied with high-resolution electron microscopy. The composition of lithiated SiNWs was revealed, consisting of the unreacted crystalline silicon core and the reacted amorphous Li-Si shell. In particular, the Li-Si shell was comprised of a mixture of amorphous silicon oxide and crystalline silicon, leading to hindrance during Li-Si alloying/dealloying upon cycling.