Abstract
The main electrochemical characteristics of a new aluminum vanadium oxide synthesized via a sol‐gel process are reported. The kinetics of the electrochemical insertion of lithium into has been investigated using ac impedance spectroscopy and the pulse relaxation technique. These two methods, which involve basically different kinds of perturbation and measurement, provide similar data. The variation of the chemical diffusion coefficient D̃Li, in the range to , as a function of the Li content, is compared to that previously obtained for the parent oxide and tentatively correlated with previous structural data reported on and orthorhombic mixed oxides .
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