Anodic electrode derived from titanium oxides li-na-ti-o for lithium ion and lithium ion rechargeable batteries, of general chemical formula li2-xnaxti6o13, where 0 x 2, in which the compound with x = 0, li2ti6o13, is the preferred material. This material, which is obtained by ion exchange at low temperature from the starting compound na2ti6o13, previously obtained with the molten salt of lino3 as a source of lithium cation, offers a considerable improvement in energy efficiency than the anodic electrodes of titanium oxide derivatives. Usually used in this type of batteries, such as the spinel li4ti5o12 and the ramsdellite li2ti3o7, going from the approximately 160 mah/g of specific capacity of these materials, to the 190 mah/g of active material li2ti6o13, maintaining its good properties of inalterability structural at low service potentials. (Machine-translation by Google Translate, not legally binding)
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