锂离子电池凝胶聚合物电解质改性的研究现状

Progress in the Novel Gel Polymer Electrolyte for Lithium-ion Battery

从目前凝胶聚合物电解质的研究现状及问题出发,重点介绍了两种改性凝胶聚合物电解质的方法。无机纳米粒子复合凝胶聚合物电解质能够降低结晶型聚合物的结晶度,提高其离子电导率,改善其力学性能和稳定性;多孔凝胶聚合物电解质能够实现在较宽的温度范围内能保持较高的离子电导率和较好的机械强度及尺寸稳定性。最后,对凝胶聚合物电解质的改性研究方向作出了展望。

The current development and problems of gel polymer electrolyte （GPE） are summarized, especially the two novel kinds of modifying GPE. The conductivity of nanocomposite gel polymer electrolyte（NGPE） is higher than normal GPE. In addition, owing to the reducing of the crystallinity of the polymer matrix, the stability and the mechanical properties of GPE are improved. For the microporous gel electrolyte, the conductivity and the dimensional stability increases in a wider temperature range. Finally, the tendency of the GPE is also introduced.