Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 37, Pages 12741-12745Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp42231j
Keywords
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Funding
- Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy [DE-AC02-05CH11231]
- Batteries for Advanced Transportation Technologies (BATT) Program [6951378]
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Silicon core-hollow carbon shell nanocomposites with controllable voids between silicon nanoparticles and hollow carbon shell were easily synthesized by a two-step coating method and exhibited different charge-discharge cyclability as anodes for lithium-ion batteries. The best capacity retention can be achieved with a void/Si volume ratio of approx. 3 due to its appropriate volume change tolerance and maintenance of good electrical contacts.
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