These authors contributed equally to this work.
In Situ Three-Dimensional Synchrotron X-Ray Nanotomography of the (De)lithiation Processes in Tin Anodes†
Article first published online: 19 MAR 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 126, Issue 17, pages 4549–4553, April 22, 2014
How to Cite
Wang, J., Chen-Wiegart, Y.-c. K. and Wang, J. (2014), In Situ Three-Dimensional Synchrotron X-Ray Nanotomography of the (De)lithiation Processes in Tin Anodes. Angew. Chem., 126: 4549–4553. doi: 10.1002/ange.201310402
We acknowledge Biqiong Wang and Prof. Xueliang Sun (Western University, Canada) for providing the Sn sample for this study. This work was supported by a Laboratory Directed Research and Development (LDRD) project at Brookhaven National Laboratory. Use of the NSLS was supported by the U.S. Department of Energy, Office of Basic Energy Science (DE-AC02-98CH10886).
- Issue published online: 17 APR 2014
- Article first published online: 19 MAR 2014
- Manuscript Revised: 23 JAN 2014
- Manuscript Received: 30 NOV 2013
- U.S. Department of Energy, Office of Basic Energy Science. Grant Number: DE-AC02-98CH10886
The three-dimensional quantitative analysis and nanometer-scale visualization of the microstructural evolutions of a tin electrode in a lithium-ion battery during cycling is described. Newly developed synchrotron X-ray nanotomography provided an invaluable tool. Severe microstructural changes occur during the first delithiation and the subsequent second lithiation, after which the particles reach a structural equilibrium with no further significant morphological changes. This reveals that initial delithiation and subsequent lithiation play a dominant role in the structural instability that yields mechanical degradation. This in situ 3D quantitative analysis and visualization of the microstructural evolution on the nanometer scale by synchrotron X-ray nanotomography should contribute to our understanding of energy materials and improve their synthetic processing.