Evaluation of ionic conduction studied by simultaneous DTA and NMR

固体材料如无机玻璃和聚合物电解质有望作为全固态燃料电池或锂二次电池的电解质。宽线核磁共振是一种灵敏的技术，可以检测离子和/或分子扩散。另一方面，DSC/DTA是检测样品玻璃化转变、结晶、相变和熔体不可缺少的技术。我们在总结前人研究经验的基础上，构建了核磁共振和DTA同步测量系统。利用这一新体系，离子在离子液体聚合物电解质和玻璃化液态LiCl溶液中的扩散运动得到了满意的评价。

Solid materials such as inorganic glasses and polymer electrolytes are expected as electrolytes of the all solid-state fuel cell or lithium secondary battery. Broad line NMR isa sensitive technique to detect ionic and/or molecular diffusion. On the other hand, DSC/DTA is an indispensable technique to detect glass transition, crystallization, phase transition and melt of the sample. We have constructed simultaneous NMR and DTA measurement system on the basis of our previous experiences on these techniques. Using this new system, ionic diffusional motions in ionicliquid-based polymer electorlytes and glass forming aquous LiCl solutions were evaluated satisfactorily.