Cathode materials and solid electrolytes to be used in lithium batteries require a high ionic mobility of Li+ species in their crystal structures. This in turn depends on the order–disorder state of lithium and on its bonding environment. Neutron diffraction is the choice technique to study the structural features of polycrystalline lithium materials that control their performance in ion transport processes. The basic principles of ionic mobility in solids and of the Rietveld refinement methods for neutron diffraction data are briefly reviewed. Then two important families of lithium conductors are selected from the literature and thoroughly discussed: the LLTO perovskite-type LiLa2/3--/3TiO3 system and the Li1+Me2(PO4)3 Nasicon phases. Accurate neutron diffraction determinations of the corresponding crystal structures have been shown to provide a considerable insight into the mechanisms of Li+ ion transfer in such materials.

Catti, M. (2009). Lithium Ion Materials for Energy Applications: Structural Properties from Neutron Diffraction. In L. Liang, R. Rinaldi, H. Schober (a cura di), Neutron Applications in Earth, Energy and Environmental Sciences (pp. 439-460). Springer [10.1007/978-0-387-09416-8_15].

Lithium Ion Materials for Energy Applications: Structural Properties from Neutron Diffraction

CATTI, MICHELE
2009

Abstract

Cathode materials and solid electrolytes to be used in lithium batteries require a high ionic mobility of Li+ species in their crystal structures. This in turn depends on the order–disorder state of lithium and on its bonding environment. Neutron diffraction is the choice technique to study the structural features of polycrystalline lithium materials that control their performance in ion transport processes. The basic principles of ionic mobility in solids and of the Rietveld refinement methods for neutron diffraction data are briefly reviewed. Then two important families of lithium conductors are selected from the literature and thoroughly discussed: the LLTO perovskite-type LiLa2/3--/3TiO3 system and the Li1+Me2(PO4)3 Nasicon phases. Accurate neutron diffraction determinations of the corresponding crystal structures have been shown to provide a considerable insight into the mechanisms of Li+ ion transfer in such materials.
Capitolo o saggio
neutron diffraction, lithium ion conductors, ion diffusion paths
English
Neutron Applications in Earth, Energy and Environmental Sciences
Liang, L; Rinaldi, R; Schober, H
2009
978-0-387-09415-1
Springer
439
460
Catti, M. (2009). Lithium Ion Materials for Energy Applications: Structural Properties from Neutron Diffraction. In L. Liang, R. Rinaldi, H. Schober (a cura di), Neutron Applications in Earth, Energy and Environmental Sciences (pp. 439-460). Springer [10.1007/978-0-387-09416-8_15].
none
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/21685
Citazioni
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 1
Social impact