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Lithium diffusion in a new cathode material Li0.8[Ni0.6Sb0.4]O2 studied by 7Li NMRстатья
- Авторы: Salikhov T., Klysheva E., Zvereva E., Nalbandyan V., Shukaev I., Medvedev B., Vavilova E.
- Журнал: Magnetic Resonance in Solids
- Том: 18
- Номер: 2
- Год издания: 2016
- Номер статьи: 16207
- Аннотация: A rhombohedral layered α-NaFeO2-type compound, Lix[Ni(1+x)/3Sb(2-x)/3]O2 (x=0.8) has been prepared from the sodium analogue by ion exchange at 570 K. In contrast to the stoichiometric composition Li3Ni2SbO6, it shows considerable Li/Ni inversion and no long-range Ni/Sb ordering. The temperature dependence of the 7Li NMR spin-lattice relaxation rate and linewidth data measured at temperature range from 30-450 K show the sharp increase of lithium ions mobility comparing to the stoichiometric compound Li3Ni2SbO6. From the NMR data the activation energy was estimated by different methods.
- Добавил в систему: Вавилова Евгения Леонидовна