Lithium aluminum nitride,Li3AlN2 as a lithium solid electrolyte |
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Authors: | H Yamane S Kikkawa M Koizumi |
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Institution: | The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567, Japan |
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Abstract: | Single phase of Li3AlN2 was prepared from the mixture of Li3N/AlN = 1.2 to 1.5 in molar ratio at 700°C and at 900°C. It crystalizes in the cubic system derived from antifluorite-type structure having the lattice parameter . It is a pure ionic conductor having conductivity of 5 × 10?8ω?1cm?1 at room temperature and an activation energy of 52 kJ/ mol. Its decomposition voltage was 0.85 V at 104°C. The TiS2/Li3AlN2/Li cell could be discharged at a constant current of 45 μA/cm2 at 104°C. |
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