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2004
Electrode processes
F 5000
Effect of Mg2+ Doping on the Structural, Thermal, and Electrochemical Properties
of LiNi0.8Co 0.16Mg0.04O2. — LiNi0.8Co0.16 Mg0.04O2 is used as cathode material in a lithi44- 017 um
cell. The role of the doping metal (Mg2+) on the electrochemical characteristics of
this layered oxide is studied and the structural evolution during cycling is followed by
in-situ energy dispersive X-ray diffraction (EDXD). The results demonstrate that
Mg2+-doping greatly reduces the unit cell volume change during cycling, because of a
very limited variation of the c lattice parameter. This improved structural retention also
reflects an improvement of the stability of the doped cathode in its fully charged state.
— (D'EPIFANIO*, A.; CROCE, F.; RONCI, F.; ALBERTINI, V. R.; TRAVERSA, E.;
SCROSATI, B.; Chem. Mater. 16 (2004) 18, 3559-3564; Dip. Sci. Tecnol. Chim.,
Univ. Tor Vergata, I-00133 Roma, Italy; Eng.) — Schramke
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