Ionic conductivity of solid lithium iodide and its monohydrate |
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| Authors: | Finn W. Poulsen |
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| Affiliation: | Metallurgy Department, Risø National Laboratory, 4000 Roskilde, Denmark |
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| Abstract: | The solid electrolytes LiI, LiI,H2O and LiI,D2O have been characterized by ac- and dc-conductivity measurements. LiI exhibits two conductivity regions: an extrinsic below ≈ 180°C and an intrinsic above, with activation energies of 0.43±0.04 eV and 0.81±0.05 eV respectively. The room temperature conductivities of the hydrates LiI,H2O and LiI,D2O are 6.6× 10?6 and 6.1×10?6 (Ω cm)?1 respectively. The activation energy for Li-ion motion in LiI,D2O is 0.66±0.05 eV. |
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