Abstract
The Ga-Ag-Li|Li7La3Zr1.89Al0.15O12|(Li2O–B2O3–V2O5 + Fe) all-solid-state electrochemical cell has been designed with a simple sintering process. The Li7La3Zr1.89Al0.15O12 solid electrolyte was prepared by sol-gel method. The lithium borovanadate glass was obtained by a convenient melt quenching technique. Cycliс voltammetry has shown that the current densities of the cell at 300 °C can reach several hundreds of μA cm−2. At this temperature, the single cell voltage is about 3.2 and 0.8 V in the charged and discharged state, correspondingly. This cell produces a current enough to make a single LED of white color working. The cell surface discharge capacity exceeds 230 μAh cm−2.
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