In situ atomic-scale imaging of phase boundary migration in FePO(4) microparticles during electrochemical lithiation.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 23873760.
- Also identified by DOI 10.1002/adma.201301374.
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Abstract
The electrochemical lithiation of FePO4 particles is investigated by in situ high-resolution transmission electron microscopy (HRTEM), and the anisotropic lithiation mechanism is directly observed. For the first time and in contrast to the previous post mortem HRTEM observations, a sharp (010) phase boundary between LiFePO4 and FePO4 is observed, which migrates along the [010] direction during lithiation.
Medical subject headings
- Ferric Compounds
- Microscopy, Electron, Transmission
- Microspheres
- Phosphates