1. In Situ Three-Dimensional Synchrotron X-Ray Nanotomography of the (De)lithiation Processes in Tin Anodes.
- Author
-
Wang, Jiajun, Chen ‐ Wiegart, Yu ‐ chen Karen, and Wang, Jun
- Subjects
ANODES testing ,QUANTITATIVE chemical analysis ,TIN ,LITHIUM-ion batteries ,SYNCHROTRONS ,LITHIATION - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF