Li/Li1+xV3O8 cells have been compared with analogous cells based on TiS2, V6O13 and β-Na0.17V2O5 cathode. The results have demonstrated thet this bronze can be ranked among the most promising cathode materials for high rate rechargeable Li cells. This has encouraged attempts aimed at improving the electrochemical performance of the bronze through substitution of V witch such transition metals as Cr and Mo, and substitution of Li with Na. None of these substituted materials performed better thet the parent compound. On the other hand, controlled H2O Intercalation within the layers resulted in an increased interlayer distance and in higher capacities. A remarkable improvement in cell performance at high rate (10 mA/Cm2) was obtained with a new technique of cathode preparation.
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|Titolo:||Li/ Li1+xV3O8 batteries. V°. Comparison with other secondary cells and influence of micro- and macro-structural alteration on the cathode performance.|
|Data di pubblicazione:||1986|
|Appartiene alla tipologia:||01a Articolo in rivista|