Studying the Kinetics of Crystalline Silicon Nanoparticle Lithiation with In Situ Transmission Electron Microscopy
KAUST Grant NumberKUK-F1-038-02
Online Publication Date2012-09-04
Print Publication Date2012-11-27
Permanent link to this recordhttp://hdl.handle.net/10754/599790
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AbstractIn situ transmission electron microscopy (TEM) is used to study the electrochemical lithiation of high-capacity crystalline Si nanoparticles for use in Li-ion battery anodes. The lithiation reaction slows down as it progresses into the particle interior, and analysis suggests that this behavior is due not to diffusion limitation but instead to the influence of mechanical stress on the driving force for reaction. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
CitationMcDowell MT, Ryu I, Lee SW, Wang C, Nix WD, et al. (2012) Studying the Kinetics of Crystalline Silicon Nanoparticle Lithiation with In Situ Transmission Electron Microscopy. Advanced Materials 24: 6034–6041. Available: http://dx.doi.org/10.1002/adma.201202744.
SponsorsM.T.M. acknowledges support from the Chevron Stanford Graduate Fellowship, the National Defense Science and Engineering Graduate Fellowship, and the National Science Foundation Graduate Fellowship. Portions of this work are supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-76SF00515 through the SLAC National Accelerator Laboratory LDRD project and the Assistant Secretary for Energy efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, Subcontract No. 6951379 under the Batteries for Advanced Transportation Technologies (BATT) Program. S. W. L. acknowledges support from KAUST (No. KUK-F1-038-02). C. M. W. acknowledges support from the Laboratory Directed Research and Development (LDRD) program of Pacific Northwest National Laboratory. The in situ TEM work was conducted in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by DOE's Office of Biological and Environmental Research and located at PNNL. PNNL is operated by Battelle for the DOE under Contract DE-AC05-76RLO1830. W.D.N. and I. R. gratefully acknowledge support of the Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract no. DE-FG02-04ER46163. The authors would like to thank Dr. Mauro Pasta for helpful comments.
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