Cargando…
Anisotropic crystallite size distributions in LiFePO(4) powders
The anisotropic crystallite sizes in high-performance LiFePO(4) powders were measured by XRD and compared with the particle sizes found by TEM image analysis. Lognormal particle size distribution functions were determined for all three main crystallographic axes. A procedure was developed to determi...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8697584/ https://www.ncbi.nlm.nih.gov/pubmed/35423931 http://dx.doi.org/10.1039/d1ra02102h |
Sumario: | The anisotropic crystallite sizes in high-performance LiFePO(4) powders were measured by XRD and compared with the particle sizes found by TEM image analysis. Lognormal particle size distribution functions were determined for all three main crystallographic axes. A procedure was developed to determine the fraction of the composite particles which consists of several crystallites and contains small- and large-angle boundaries. In a sample with the most anisotropic crystallites (ratio of volume-weighted mean crystallite sizes L̄(V[001])/L̄(V[010]) = 1.41) the number of the composite particles was at least 30%. |
---|