具有高离子电导率的固体电解质是全固态电池、电化学器件和传感器的关键材料.但是,由锂盐和长链聚合物基体构成的一类常规 Li~+传导聚合物电解质,其室温离子电导率却非常低(10~(-9)～10~(-5)S/cm).例如,最常见的(PEO)_8.·LiClO-4.在298K时离子电导率只有10~(-7)S/cm.因此,利用这类材料的全固态锂电池只有工作在323～373K时,才能提供高能量、大功率和长寿命.显然,这是不利于实际应用的.从实用的角度看,若使全固态锂电池在室温条件下有效地工作,则要求固体电解质的室温离子电导率必须达到10~(-3)S/cm.目前,提高聚合物电解质室温离子电导率的方法有:改进现有的PEO-LiX体系、研制复 Solid electrolytes with high ionic conductivity are key materials for all-solid-state batteries, electrochemical devices, and sensors.However, a family of conventional Li ~ + conducting polymer electrolytes made up of lithium salts and long chain polymer matrices have room temperature ionic conductivity For example, the most common (PEO) _8 · LiClO-4 ion conductivity at 298K is only 10 ~ (-7) ~ 10 ~ (-5) S / cm) ) S / cm. Therefore, the use of such materials, all-solid-state lithium battery only work in the 323 ~ 373K in order to provide high energy, high power and long life. Obviously, this is not conducive to practical applications from a practical point of view , If the all-solid-state lithium battery to work effectively at room temperature, the room temperature ionic conductivity of the solid electrolyte must be 10 ~ (-3) S / cm.At present, to improve the polymer electrolyte room temperature ionic conductivity method: Improve existing PEO-LiX system, develop complex