PMMA系聚合物在锂离子电池凝胶电解质领域中的研究进展

摘要

The characteristics and application of polymethyl methacrylate (PMMA) used for lithium-ion batteries gel polymer electrolyte (GPE) are summarized. One of the advantages of PMMA-based GPE is the good interface stability with lithium metal electrode, and it also has high ionic conductivity of 10-3 S/cm at room temperature, and its cycle performance is better than that of some other gel electrolyte. But the weakness of mechanical strength limits its application. But the weakness of mechanial strength limits its application. The mechanial property of PMMA-based GPE can be improved by combining with other polymers, inorganic nanoparticles, polyolefin films, even nanworens to form gel electrolytes through blending, coating, copolymerization, etc. The trend of research on PMMA-based GPE is to prepare multi -layered composite porous electrolytes by electrospinning.%综述了聚甲基丙烯酸甲酯（PMMA）作为锂离子电池凝胶电解质的特性及应用情况。 PMMA基凝胶电解质与锂金属电极的界面稳定性好，室温离子电导率高达10-3 S/cm数量级，循环充放电性能好；但较差的机械强度限制了其应用，因此常采取共混、涂覆以及共聚等不同方式与其他高聚物、无机纳米粒子、聚烯烃膜乃至非织造膜等结合，制备出复合凝胶电解质使用。指出未来研究趋势是采用静电纺丝技术制备出分层复合聚合物电解质。