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The spinel Li4Ti5O12 has been doped by Na for the purpose of improving its cycle performance as an anode. The lattice parameter of Li4Ti5O12 increases due to the Na doping. SEM shows that all materials are well crystallized with a particle size in the range of 400–600 nm. The pristine Li4Ti5O12 sample has a bigger particle size than that of Na-doped samples. Although the doping does not change the...
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