New Applications of Electrochemically Produced Porous Semiconductors and Nanowire Arrays
Institute for Materials Science, Christian-Albrechts-University of Kiel, Kaiserstrasse 2, 24143, Kiel, Germany
Nanoscale Research Letters 2010, 5:1502-1506 doi:10.1007/s11671-010-9669-zPublished: 15 June 2010
The growing demand for electro mobility together with advancing concepts for renewable energy as primary power sources requires sophisticated methods of energy storage. In this work, we present a Li ion battery based on Si nanowires, which can be produced reliable and cheaply and which shows superior properties, such as a largely increased capacity and cycle stability. Sophisticated methods based on electrochemical pore etching allow to produce optimized regular arrays of nanowires, which can be stabilized by intrinsic cross-links, which serve to avoid unwanted stiction effects and allow easy processing.