POSS-聚合物在锂离子电池中应用的研究进展

摘要

Polyhedral oligomeric silsesquioxane (POSS) is a silicone compound with unique structure. POSS-based polymer (POSS-polymer) attracts much attention due to its unique electrochemical and mechanical properties. Polymer electrolyte materials with high ionic conductivity, suitable mechanical properties, and stable chemical and electrochemical properties play an important role in developing batteries with high qualities. POSS-polymer can improve the thermal stability and mechanical properties, further enhance the ionic conductivity of polymer electrolyte, and accordingly it is considered as one of the most promising candidates for the future electrolyte materials of lithium ion batteries. Additionally, with a little addition of POSS in the polymer electrolytes, better battery charge/discharge performance can be achieved. This review was intended to cover the more recent advances in structure-property relationships of POSS-polymers. An application prospect of POSS-polymers in lithium ion batteries was also proposed.%低聚笼形倍半硅氧烷(POSS)-聚合物结合了POSS和聚合物各自的结构和性能的优势，显示出独特的电化学性能和力学性能，在锂离子电池领域得到越来越多研究者的关注。聚合物电解质的高离子电导率、适宜的力学性能及稳定的电化学性能对提高电池的性能有很重要的影响。POSS 的优势在于通过较少的添加量，提高聚合物电解质的热稳定性和力学性能，进一步提高聚合物电解质的室温离子电导率，获得更好的电池充放电性能。分析POSS-聚合物结构和电池性能之间的关系，综述具有代表性的 POSS-聚合物在锂离子电池电解质中应用的研究进展，并对该种聚合物在锂电池中的应用前景进行展望。