From the Editor

This issue features three articles, the first of which is Zhou and Chen's article titled “Enhancing High-Temperature Capacitive Energy Storage Performance of Dielectric Polymers via Electrical Conduction Suppression.” It gives an overview of high-temperature capacitive energy storage performance of dielectric polymers. The article not only summarizes the efforts of up-to-date research, but also provides conclusions about primary conduction mechanisms in dielectric polymers under increased temperatures and high electric fields, including hopping conduction, Schottky injection, and Poole-Frenkel emission. Solutions to suppress these mechanisms are suggested with evidence and theoretical analysis supported by literature. The knowledge outlined in this comprehensive article may be of significant interest for electrical engineers working in the field of electrical insulation materials, particularly in insulating polymers of film capacitors.