Synthesis and electrochemical properties of a new class of polymer electrolytes based on polar polysiloxane polymerrs is described. Unlike ethylene oxide-based polymers, these materials are oxidatively stable up to at least 4.2 V, the operating voltage of high energy cells that use cathode materials such as lithium nickel cobalt aluminum oxide (NCA) and lithium nickel cobalt manganese oxide (NCM). Use of these polymers electrolytes as an alternative to PEO in solid-state lithium batteries is described.
本文介绍了一类基于极性聚
硅氧烷聚合物的新型
聚合物电解质的合成和电
化学特性。与基于
环氧乙烷的
聚合物不同,这些材料的
氧化稳定性至少可达 4.2 V,这是使用
镍钴铝氧化
锂(NCA)和
镍钴锰氧化
锂(NCM)等阴极材料的高能电池的工作电压。本文介绍了在固态
锂电池中使用这些
聚合物电解质替代 P
EO 的情况。