一种新型聚合物电解质的制备与性能研究

Synthesis and Properties Research of a New Polymer Electrolyte

为了解决锂枝晶的问题,在以前研究成果的基础上,进行聚合物结构优化,使其中的双键还原为单键,以增强其力学性能,使锂电池中的电流密度分布更加均一。通过对比一系列的实验结果,确定了反应条件。同时,结果表明,氢化后得到的新型聚合物电解质的力学性能有了很大的提升;而且,该新型聚合物电解质还具有良好的室温电导率、锂离子迁移数以及与LiFePO_4和锂片的良好相容性,对抑制锂枝晶的生长有着显著的效果。

In order to solve the problem of lithium dendrites, the structure optimization of the polymer was carried out based on the prior research results in order to replace the double bond with single bond to enhance its mechanical properties. The reaction conditions were determined by a series of experiments. At the same time, the results show that the mechanical properties are improved after the hydrogenation reaction. Moreover, the new polymer electrolyte also has good room temperature conductivity, lithium ion migration and the good compatibility with LiFePO4 and lithium, which has a significant effect on the inhibition of the growth of lithium dendrites.