Communication

Three-Dimensional Porous Silicon Particles for Use in High-Performance Lithium Secondary Batteries†

  1. Hyunjung Kim,
  2. Byunghee Han,
  3. Jaebum Choo Prof.,
  4. Jaephil Cho Prof.

Article first published online: 17 NOV 2008

DOI: 10.1002/anie.200804355

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 47, Issue 52, pages 10151–10154, December 15, 2008

Additional Information

How to Cite

Kim, H., Han, B., Choo, J. and Cho, J. (2008), Three-Dimensional Porous Silicon Particles for Use in High-Performance Lithium Secondary Batteries. Angewandte Chemie International Edition, 47: 10151–10154. doi: 10.1002/anie.200804355

Author Information

  1. Department of Applied Chemistry, Hanyang University, Ansan, 426-791 (Korea), Fax: (+82) 31-407-3863

  1. †

    This work was supported by the IT R&D program of MKE/IITA (Core Lithium Secondary Battery Anode Materials for Next Generation Mobile Power Modules, 2008-F-019-01).

Publication History

  1. Issue published online: 12 DEC 2008
  2. Article first published online: 17 NOV 2008
  3. Manuscript Received: 4 SEP 2008

Funded by

  • MKE/IITA. Grant Number: 2008-F-019-01

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Keywords:

  • anode materials;
  • gels;
  • lithium;
  • nanostructures;
  • silicon
Thumbnail image of graphical abstract

Particle-larly good! Thermal annealing and etching of physical composite butyl-capped Si gels and SiO2 nanoparticles at 900 °C under an Ar atmosphere is a versatile method for the formation of 3D porous bulk Si particles (see picture). Complete etching of the SiO2 from the SiO2/carbon-coated Si (c-Si) composite results in the retention of the remaining c-Si as a highly porous but interconnected structure, which preserves the starting morphology.

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