Electrochemical lithium ion intercalation in Li 0.5Ni 0.25TiOPO 4 examined by in situ X-ray diffraction

Rickard Eriksson, Kenza Maher, Ismael Saadoune, Mohammed Mansori, Torbjörn Gustafsson, Kristina Edström

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The complex structural transformations of Li 0.5Ni 0.25TiOPO 4 during electrochemical lithiation have been examined by in situ X-ray diffraction. During the first lithiation two structural changes take place: first a transition to a second monoclinic phase (a = 9.085(4), b = 8.414(5), c = 6.886(5), β = 99.85(4)) and secondly a transition to a third phase with limited long-range order. The third phase is held together by a network of corner sharing Ti-O octahedra and phosphate ions with disordered Ni-Li channels. During delithiation the third phase is partially transformed back to a slightly disordered original phase, Li 0.5Ni 0.25TiOPO 4 without formation of the second intermediate phase. These phase transitions correspond well to the different voltage plateaus that this material shows during electrochemical cycling.

Original languageEnglish
Pages (from-to)547-550
Number of pages4
JournalSolid State Ionics
Volume225
DOIs
Publication statusPublished - 4 Oct 2012
Externally publishedYes

Fingerprint

Intercalation
Lithium
intercalation
Phosphates
lithium
Phase transitions
Ions
X ray diffraction
Electric potential
diffraction
ions
x rays
plateaus
phosphates
cycles
electric potential

Keywords

  • Batteries
  • In situ X-ray powder diffraction
  • Lithium intercalation compounds

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Chemistry(all)

Cite this

Electrochemical lithium ion intercalation in Li 0.5Ni 0.25TiOPO 4 examined by in situ X-ray diffraction. / Eriksson, Rickard; Maher, Kenza; Saadoune, Ismael; Mansori, Mohammed; Gustafsson, Torbjörn; Edström, Kristina.

In: Solid State Ionics, Vol. 225, 04.10.2012, p. 547-550.

Research output: Contribution to journalArticle

Eriksson, Rickard ; Maher, Kenza ; Saadoune, Ismael ; Mansori, Mohammed ; Gustafsson, Torbjörn ; Edström, Kristina. / Electrochemical lithium ion intercalation in Li 0.5Ni 0.25TiOPO 4 examined by in situ X-ray diffraction. In: Solid State Ionics. 2012 ; Vol. 225. pp. 547-550.
@article{ccaf1a0781a6485bb9a03b4a07850e24,
title = "Electrochemical lithium ion intercalation in Li 0.5Ni 0.25TiOPO 4 examined by in situ X-ray diffraction",
abstract = "The complex structural transformations of Li 0.5Ni 0.25TiOPO 4 during electrochemical lithiation have been examined by in situ X-ray diffraction. During the first lithiation two structural changes take place: first a transition to a second monoclinic phase (a = 9.085(4), b = 8.414(5), c = 6.886(5), β = 99.85(4)) and secondly a transition to a third phase with limited long-range order. The third phase is held together by a network of corner sharing Ti-O octahedra and phosphate ions with disordered Ni-Li channels. During delithiation the third phase is partially transformed back to a slightly disordered original phase, Li 0.5Ni 0.25TiOPO 4 without formation of the second intermediate phase. These phase transitions correspond well to the different voltage plateaus that this material shows during electrochemical cycling.",
keywords = "Batteries, In situ X-ray powder diffraction, Lithium intercalation compounds",
author = "Rickard Eriksson and Kenza Maher and Ismael Saadoune and Mohammed Mansori and Torbj{\"o}rn Gustafsson and Kristina Edstr{\"o}m",
year = "2012",
month = "10",
day = "4",
doi = "10.1016/j.ssi.2011.11.001",
language = "English",
volume = "225",
pages = "547--550",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",

}

TY - JOUR

T1 - Electrochemical lithium ion intercalation in Li 0.5Ni 0.25TiOPO 4 examined by in situ X-ray diffraction

AU - Eriksson, Rickard

AU - Maher, Kenza

AU - Saadoune, Ismael

AU - Mansori, Mohammed

AU - Gustafsson, Torbjörn

AU - Edström, Kristina

PY - 2012/10/4

Y1 - 2012/10/4

N2 - The complex structural transformations of Li 0.5Ni 0.25TiOPO 4 during electrochemical lithiation have been examined by in situ X-ray diffraction. During the first lithiation two structural changes take place: first a transition to a second monoclinic phase (a = 9.085(4), b = 8.414(5), c = 6.886(5), β = 99.85(4)) and secondly a transition to a third phase with limited long-range order. The third phase is held together by a network of corner sharing Ti-O octahedra and phosphate ions with disordered Ni-Li channels. During delithiation the third phase is partially transformed back to a slightly disordered original phase, Li 0.5Ni 0.25TiOPO 4 without formation of the second intermediate phase. These phase transitions correspond well to the different voltage plateaus that this material shows during electrochemical cycling.

AB - The complex structural transformations of Li 0.5Ni 0.25TiOPO 4 during electrochemical lithiation have been examined by in situ X-ray diffraction. During the first lithiation two structural changes take place: first a transition to a second monoclinic phase (a = 9.085(4), b = 8.414(5), c = 6.886(5), β = 99.85(4)) and secondly a transition to a third phase with limited long-range order. The third phase is held together by a network of corner sharing Ti-O octahedra and phosphate ions with disordered Ni-Li channels. During delithiation the third phase is partially transformed back to a slightly disordered original phase, Li 0.5Ni 0.25TiOPO 4 without formation of the second intermediate phase. These phase transitions correspond well to the different voltage plateaus that this material shows during electrochemical cycling.

KW - Batteries

KW - In situ X-ray powder diffraction

KW - Lithium intercalation compounds

UR - http://www.scopus.com/inward/record.url?scp=84867573048&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867573048&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2011.11.001

DO - 10.1016/j.ssi.2011.11.001

M3 - Article

VL - 225

SP - 547

EP - 550

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

ER -