Organic Materials as Electrodes in Potassium-Ion Batteries.

The integrated advantages of organic electrode materials and potassium metal make the organic potassium-ion batteries (OPIBs) promising secondary batteries. This review summarizes the latest research progress on OPIBs according to the different types of electrode materials (namely, organic small molecules compounds, polymers, and frameworks (metal-organic frameworks (MOFs), covalent organic frameworks (COFs)). Additionally, the research prospects and outlook for OPIBs are also provided.