Structural study of NiO2 and CoO2 as end members of the lithiated compounds by in situ high resolution X-ray powder diffraction

Authors
Seguin, L Amatucci, G Anne, M Chabre, Y Strobel, P Tarascon, JM Vaughan, G
Citation
L. Seguin et al., Structural study of NiO2 and CoO2 as end members of the lithiated compounds by in situ high resolution X-ray powder diffraction, J POWER SOU, 82, 1999, pp. 604-606
Citations number
7
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
JOURNAL OF POWER SOURCES
ISSN journal
03787753 → ACNP
Volume
82
Year of publication
1999
Pages
604 - 606
Database
ISI
SICI code
0378-7753(199909)82:<604:SSONAC>2.0.ZU;2-T
Abstract
In-situ X-ray diffraction has been carried out on LixNiO2 and LixCoO2 batte ries, using the high resolution powder diffractometer BM16 at ESRF (Grenobl e, France). Diffraction was performed in transmission geometry through 1-mm thick Bellcore-type plastic batteries. The batteries were controlled in po tentiostatic mode. During these experiments, end-members NiO2 and CoO2 have been isolated, and high resolution patterns have been recorded in order to solve their structures from powder data. NiO2 structure is of CdI2 type, w ith a monoclinic distortion. CoO2 seems to be of CdCl2 type also with st, m onoclinic distortion. (C) 1999 Elsevier Science S.A. All rights reserved.