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Role of Crystal Symmetry in the Reversibility of Stacking-Sequence Changes in Layered Intercalation Electrodes.
- Source :
-
Nano Letters . 12/13/2017, Vol. 17 Issue 12, p7789-7795. 7p. - Publication Year :
- 2017
-
Abstract
- The performance of many technologies, such as Li- and Na-ion batteries as well as some two-dimensional (2D) electronics, is dependent upon the reversibility of stacking-sequence-change phase transformations. However, the mechanisms by which such transformations lead to degradation are not well understood. This study explores lattice-invariant shear as a source of irreversibility in stacking-sequence changes, and through an analysis of crystal symmetry shows that common electrode materials (graphitic carbon, layered oxides, and layered sulfides) are generally susceptible to lattice-invariant shear. The resulting irreversible changes to microstructure upon cycling ("electrochemical creep") could contribute to the degradation of the electrode and capacity fade. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15306984
- Volume :
- 17
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Nano Letters
- Publication Type :
- Academic Journal
- Accession number :
- 126779203
- Full Text :
- https://doi.org/10.1021/acs.nanolett.7b03989