Effects of Particle Size, Electronic Connectivity, and Incoherent Nanoscale Domains on the Sequence of Lithiation in LiFePO₄ Porous Electrodes

Effects of Particle Size, Electronic Connectivity, and Incoherent Nanoscale Domains on the Sequence of Lithiation in LiFePO₄ Porous Electrodes

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 27(2015), 42 vom: 01. Nov., Seite 6591-7
Auteur principal: Li, Yiyang (Auteur)
Autres auteurs: Meyer, Sophie, Lim, Jongwoo, Lee, Sang Chul, Gent, William E, Marchesini, Stefano, Krishnan, Harinarayan, Tyliszczak, Tolek, Shapiro, David, Kilcoyne, Arthur L David, Chueh, William C
Format: Article en ligne
Langue:English
Publié: 2015
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article LiFePO4 X-ray chemical imaging particle size dependence ptychography
Description
Résumé:© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
High-resolution X-ray microscopy is used to investigate the sequence of lithiation in LiFePO4 porous electrodes. For electrodes with homogeneous interparticle electronic connectivity via the carbon black network, the smaller particles lithiate first. For electrodes with heterogeneous connectivity, the better-connected particles preferentially lithiate. Correlative electron and X-ray microscopy also reveal the presence of incoherent nanodomains that lithiate as if they are separate particles
Description:Date Completed 08.02.2016
Date Revised 30.09.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201502276