CAJ | 학술논문

利用FT-Raman、FT-IR和复数阻抗谱，对聚氧化乙烯聚氨酯/LiCF3SO3固体电解质样品中离子在聚合物电解质中的导电机理进行了研究.发现导电离子以自由离子、离子对和聚集体的形式存在于体系中，离子状态随盐浓度不同发生变化，自由离子比率随温度的上升而下降；对离子的存在状态与电导率之间的关系进行了研究，发现体系的电导率随自由离子的比率上升而变大，初步探讨了离子在体系中的导电机理；对Nernst-Einstein公式在聚合物电解质体系的应用做了校正，建立了合理的自由离子浓度和电导率的关系.
이용FT-Raman、FT-IR화복수조항보，대취양화을희취안지/LiCF3SO3고체전해질양품중리자재취합물전해질중적도전궤리진행료연구.발현도전리자이자유리자、리자대화취집체적형식존재우체계중，리자상태수염농도불동발생변화，자유리자비솔수온도적상승이하강；대리자적존재상태여전도솔지간적관계진행료연구，발현체계적전도솔수자유리자적비솔상승이변대，초보탐토료리자재체계중적도전궤리；대Nernst-Einstein공식재취합물전해질체계적응용주료교정，건립료합리적자유리자농도화전도솔적관계.
Solid poly(ethylene oxide) urethane electrolytes were characterized by FT-Raman, FT-IR and impedance analysis. The ionic conducting mechanism of polymer electrolytes was investigated. The results of FT-Raman and FT-IR show the three types of ions: free ions, ion pairs and ion congeries. The different concentration of ions has an important effect on ionic state and ionic conductivity. Free ionic ration in polyurethane/LiCF3SO3 decreases with the increase of temperature. The conductivity of polyurethane/LiCF3SO3 increases with the increase of free ionic ration. The ionic conducting mechanism was discussed in the principium. The appliance of Nernst-Einstein formula in polymer electrolytes was revised rationally; the relation between free ionic ration and conductivity was soundly established.