4.7 Article

Silicon nanoparticles-graphene paper composites for Li ion battery anodes

Journal

CHEMICAL COMMUNICATIONS
Volume 46, Issue 12, Pages 2025-2027

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/b919738a

Keywords

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Funding

  1. US Department of Energy [DE-FG02-01ER15184]
  2. MEST [NRF-2009-C1AAA001-0093307]
  3. DOE-EFRC [DE-AC02-06CH11357]
  4. NSF-NSEC
  5. NSF-MRSEC
  6. Keck Foundation
  7. State of Illinois
  8. Northwestern University
  9. National Science Foundation [DMR-0520513]

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Composites of Si nanoparticles highly dispersed between graphene sheets, and supported by a 3-D network of graphite formed by reconstituting regions of graphene stacks exhibit high Li ion storage capacities and cycling stability. An electrode was prepared with a storage capacity > 2200 mA h g(-1) after 50 cycles and > 1500 mA h g(-1) after 200 cycles that decreased by < 0.5% per cycle.

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