Europium-Doped Lithium Titanate as a Material for the Anodes of Lithium-Ion Batteriesстатья
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Аннотация:Lithium titanate doped with europium (0.2 to 2.0 wt %) is prepared via high-temperature solidphasesynthesis. Processes of the inserton of lithium into such a material are studied. It is establishedthat doping with europium allows the final potential of the reversible insertion of lithium to 0.01 V to be shifted. It also contributes to an increase in the specific discharge capacity, a reduction in the specific irreversible capacity, and a drop in the polarization of electrodes. It is found that the specific discharge capacity of samples with doping of 1.0–1.6 wt % is 214 mAh/g at a current of 20 mA/g and ~50 mAh/g at a current of 3200 mA/g.