Scalable polymer-based dielectric capacitors with excellent elevated-temperature capacitive performances are highly demanded in next-generation electronic power systems. Here, we design an effective and low-cost way to fabricate high-temperature polymer capacitors via adding Al2O3 nanoparticles...

Potassium ion hybrid capacitors (PIHCs) have attracted widespread attention because of combining the advantages of potassium ion batteries (PIBs) with supercapacitors. The research of PIHCs is closely related to K + storage materials that are capable of accommodating large-size K + and possess...