Composite Multi-layers Capacitors with Colossal Permittivity for Electronics and Energy Storage Applications

With global demand for energy storage growing rapidly, new capacitors which can achieve fast charging, high power density and long cycling lifetime are in high demand. The PolyU research team has developed a novel capacitor with colossal permittivity, which stems from materials that have a high dielectric constant, and a higher dielectric constant means that more energy can be stored.

This novel capacitor made of polymer/ceramic composites with colossal permittivity can simultaneously achieve high dielectric constant and high energy density with exceptionally low energy loss, i.e. a lot of energy can be stored without leaking and being wasted easily. The multi-layer structure increases the capacitive density and drastically reduces the capacitor area, offering performance, volume and cost advantages over nano-composites with other ceramic particle fillers.