磷是生物体生命的基本要素,磷基化合物在工业上有许多用途,如阻燃试剂,肥料中的成分,烟火,等。离子液体是熔点低于水沸点的盐。术语“聚合的离子液体”(PIL)是指一类在每个单体重复单元中含有离子液体(IL)物质并且通过聚合物主链连接以形成大分子结构的聚电解质。PIL通过在聚合物链中结合IL的一些独特特性而提供了一类新的聚合物材料。由于高稳定性(热,化学,和电化学)和它们的离子的高迁移率,但是它们的实际适用性受到限制,因为它们缺乏液体和固体的好处,患有泄漏问题和过大的粘度。PIL正在开发非挥发性和不易燃的固体电解质。在本文中,我们简要介绍了基于磷的PILs,包括他们的合成路线,属性,优点和缺点,以及基于氮的和基于磷的PILs之间的比较。由于PIL可以用作锂离子电池(LIB)应用中的聚合物电解质,导电性和热机械性能是该聚合物电解质体系最重要的特征。本文对以往文献报道的基于PIL的化学结构进行了综述和总结。一般来说,与由刚性主链组成的PIL相比,具有更柔性主链的PIL表现出更好的电导率值。在本节的最后,讨论了PIL的未来研究方向,包括使用废物中可回收的磷。
Phosphorous is an essential element for the life of organisms, and phosphorus-based compounds have many uses in industry, such as flame retardancy reagents, ingredients in fertilizers, pyrotechnics, etc. Ionic liquids are salts with melting points lower than the boiling point of water. The term \"polymerized ionic liquids\" (PILs) refers to a class of polyelectrolytes that contain an ionic liquid (IL) species in each monomer repeating unit and are connected by a polymeric backbone to form macromolecular structures. PILs provide a new class of polymeric materials by combining some of the distinctive qualities of ILs in the polymer chain. Ionic liquids have been identified as attractive prospects for a variety of applications due to the high stability (thermal, chemical, and electrochemical) and high mobility of their ions, but their practical applicability is constrained because they lack the benefits of both liquids and solids, suffering from both leakage issues and excessive viscosity. PILs are garnering for developing non-volatile and non-flammable solid electrolytes. In this paper, we provide a brief review of
phosphonium-based PILs, including their synthesis route, properties, advantages and drawbacks, and the comparison between nitrogen-based and
phosphonium-based PILs. As
phosphonium PILs can be used as polymer electrolytes in lithium-ion battery (LIB) applications, the conductivity and the thermo-mechanical properties are the most important features for this polymer electrolyte system. The chemical structure of
phosphonium-based PILs that was reported in previous literature has been reviewed and summarized in this article. Generally, the
phosphonium PILs that have more flexible backbones exhibit better conductivity values compared to the PILs that consist of a rigid backbone. At the end of this section, future directions for research regarding PILs are discussed, including the use of recyclable phosphorus from waste.