聚合物电解质是解决商业化锂离子电池安全性问题的一条有效途径.聚环氧乙烷类(PEO)具有良好的热稳定性和电化学稳定性,是一种有发展潜力的聚合物电解质骨架组分.介绍了PEO基聚合物电解质的导电机理,并对其在国内外的研究动态进行了综述,主要介绍了几种提高电导率的方法和新型PEO基电解质体系.最后对PEO基聚合物电解质的研究进行了展望.
Polymer electrolyte is an efficient way to solve the safety problems for commercial lithium ion batteries.Polyoxyethylene (PEO) had good thermal and electrochemical staility,thus it was the potential component of matrix for polymer electrolyte.The ion transport mechanism of PEO-based polymer electrolyte was introduced briefly and the researches at home and abroad were reviewed.Several methods to improve conductivity and new PEO-based electrolyte system were introduced.Finally,the research on PEO based polymer electrolyte was prospected.