Synthesis, structure, and conduction mechanism of the lithium superionic conductor Li10+δGe1+δP2−δS12

摘要: A solid solution of the lithium superionic conductor Li10+δGe1+δP2−δS12 (0 ≤ δ 0.35) was synthesized and its structure ionic conductivity were examined. The highest value 1.42 × 10−2 S cm−1 obtained at 300 K with a sintered pellet sample having content = 0.35. Arrhenius curves for this material exhibited gradual change in slope over temperature range 193–373 activation energy conduction decreased from 26 kJ mol−1 below 373 to 7 above 573 K, which is typical highly conducting solids. crystal structures solutions determined using neutron diffraction, pathways visualized through analysis by applying maximum entropy method. distribution found disperse significantly throughout one-dimensional pathway as increased 4.8 750 K. In addition, two-dimensional along ab plane became apparent high temperatures, suggesting that mechanism changes three-dimensional increasing temperature.