ملخص: The cathodic behaviour of [alpha]- and [beta]-PbO2 was studied in the presence of lithium ions using slow-scan voltametry. The [beta]-PbO2 shows two peaks at 2.95 V and 2.45 V versus Li/Li+. However, in the case of [alpha]-PbO2, similar peaks appear at 2.74 V and 2.35 V versus Li/Li+. The values of Li+ calculated for both samples were 5 x 10-13 cm2 s-1 for [alpha]-PbO2 and 10-14 cm2 s-1 for [beta]-PbO2. The [alpha] phase seems to be a better lithium conductor than the [beta] phase.

لغة: إنجليزية