Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
187169 | Electrochimica Acta | 2013 | 6 Pages |
Abstract
Optimized Si wire anodes have been prepared by macropore etching in p-Si and subsequent chemical/galvanic processing. The anodes have been optimized with respect to capacity, cycling performance and processing costs by fine-tuning the wire geometry. The optimized anodes have wires with ≈1 μm in diameter and length of 70 μm; they are as densely spaced as possible regarding volume expansion and electrolyte penetration requirements. A stable capacity of 3150 mAh/g for 100 cycles has been reached during cycling to 75% of the maximum capacity. The operational range of the anodes is 0.11–0.7 V. Optimal charging conditions were established by cyclic voltammetry measurements and battery cycling tests.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Enrique Quiroga-González, Jürgen Carstensen, Helmut Föll,