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在阴离子导体中,除氧离子导体外,研究得较多的是氟离子导体.由于卤素有高的氧化能力,氟化剂与金属的反应对应于体系自由能的很大变化,若用作电极对则可得到高的电压和功率密度;而且F~-是最小的单电荷阴离子,氟化物很有希望制成离子电导率高的固体,此外,氟化物常是电子绝缘体,结构简单,便于简化理论模型.为了提高氟离子电导率,一般采用掺杂异价氟化物的方法,如文献[1]对(CaF_2+YF_3)、文
Among anion conductors, fluoride ion conductors are the most studied except for oxygen ion conductors. Due to the high oxidation ability of halogen, the reaction of fluorination agent with metal corresponds to a great change of the free energy of the system. If used as an electrode And can get high voltage and power density; and F ~ - is the smallest single-charge anions, fluoride is very promising to make a high ionic conductivity of the solid, in addition, fluoride is often an electronic insulator, the structure is simple and easy to simplify Theoretical model.In order to improve the fluoride ion conductivity, the general method of doping different fluoride, such as the literature [1] of (CaF_2 + YF_3), the text