ASK manufacturing and marketing ultracapacitors, with millions of units now performing reliably around the clock worldwide. Ultracapacitors are energy storage and power delivery devices that enable design engineers to create systems which optimize energy efficiency. ASK ultracapacitors are known for their superior power performance, their extraordinary reliability and remarkably long cycle and calendar lives. We have developed and produced power products since 1965 and have continually invested a significant portion of our spending in research and product development, which today translates into solutions that meet the stringent requirements of a broad range of electrical energy applications.

A combination of materials science and electrode formulation, along with a simple industrialized fabrication process, makes the ASK ultracapacitor electrode one of a kind in the energy storage world. Through the unique, environmentally compatible, solvent-free process, a high-purity activated carbon custom formulation is formed into carbon film and laminated onto aluminum foil substrate to produce super-capacitive, double-layer electrode material. Wound or folded electrode and separator material are then sealed in a robust, hermetically sealed package and impregnated with high-performance electrolyte. The resulting ultracapacitors are extremely durable, maintenance-free products which are in a variety of form factors and capacitance ratings to meet the needs of applications ranging from small commercial devices to heavy industrial examples such as hybrid transit buses, wind turbines and more.