Issue 23, 2021

Anisotropic crystallite size distributions in LiFePO4 powders

Abstract

The anisotropic crystallite sizes in high-performance LiFePO4 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 [L with combining macron]V[001]/[L with combining macron]V[010] = 1.41) the number of the composite particles was at least 30%.

Graphical abstract: Anisotropic crystallite size distributions in LiFePO4 powders

Supplementary files

Article information

Article type
Paper
Submitted
17 Mar 2021
Accepted
01 Apr 2021
First published
13 Apr 2021
This article is Open Access
Creative Commons BY license

RSC Adv., 2021,11, 13799-13805

Anisotropic crystallite size distributions in LiFePO4 powders

A. Bobyl and I. Kasatkin, RSC Adv., 2021, 11, 13799 DOI: 10.1039/D1RA02102H

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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