Polymeric ionic liquids (PILs) are the polymers, which contain at least one ionic center, similar by composition to the structure of commonly used ionic liquids, as a covalently bonded part of their constitutional repeating unit, with promising applications in many fields. In this paper, recent advances of polymeric ionic liquids (PILs) that can be probably used as ionic conductors, sorbents and separation, dispersants and stabilizer, and catalysts are reviewed. The development of PILs as ionic conductors for lithium batteries and solar cells is introduced in detail. Finally, the research trends of the PILs are prospected. Contents
1 Introduction
2 Ionic conductors
2.1 Electrolyte of lithium/ lithium-ion batteries
2.2 Electrolyte of dye-sensitized solar cells
3 Sorbents and separation
3.1 Sorbents of carbon dioxide
3.2 Gas separation
3.3 Stationary phase
4 Stabilizer
4.1 Stabilization of carbon nanotubes
4.2 Stabilization of metal particles and polymer
5 Catalysts
5.1 Functionalized polymeric ionic liquids catalysts
5.2 Supported polymeric ionic liquids catalysts
6 Conclusions and outlook