固体聚合物电解质具有机械柔性、易成膜、不易燃、成本低,以及良好的界面接触等优点,对解决液态锂离子电池在非常规环境下可能产生的安全性问题具有重要意义。然而,聚合物电解质存在离子电导率低、力学性能差、循环寿命短等缺点,限制了其实际应用。大多数研究重点关注电解质离子电导率的提升和界面性能的改善。基于聚合物电解质的优化,重点介绍纳米填料改性对聚合物电解质性能提升的研究进展,对聚合物电解质的现状和发展前景进行简要的总结和讨论。
Solid polymer electrolytes have the advantages of mechanical flexibility,easy film formation,non-flammability,low cost and good interface contact,which are of great significance to solve the safety problems of liquid lithium-ion batteries in unconventional environments.However,polymer electrolytes have some disadvantages,such as low ionic conductivity,poor mechanical properties and short cycle life,which limit their practical applications.Most studies focus on the enhancement of ionic conductivity and the improvement of interfacial properties.The research progress of nanofiller modification to improve the performance of polymer electrolytes were highlighted,and the current status and development prospects of polymer electrolytes were briefly summarized and discussed.
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基金资助
陕西省重点研发计划(2022GY186);西宁市重大科技专项(2021-Z-04)
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