Articles, Presentations & Reviews (Non Members)

Battery Types & Uses

Batteries are portable energy sources featuring three basic components – an anode, a cathode and an electrolyte. Their properties relate directly to their individual chemistries. For instance, the characteristic voltage of Nickel-Cadmium (NiCd) and Nickel-Metal Hydride (NiMH) cells is 1.2V, alkaline cells are 1.5V, and Lithium ion cells are 3.6V. Other features such as energy density/capacity, charge/discharge […]

Power vs Energy

Energy storage devices may be broadly characterized by their energy density (energy stored per unit volume or mass) and by their power (how fast the energy can be delivered). Conventional capacitors have enormous power, but store only tiny amounts of energy. Batteries can store lots of energy, but take a long time to charge and […]

The Supercapacitor Advantage

Each day brings a new technical innovations, and the demand for smaller, more portable and more functional electronics. This puts pressure on power supplies to be light and small, run for long periods of time (i.e., have lots of energy), and meet the demands of multiple high current loads (i.e., have a high power capability). […]

Energy Storage Technologies

Batteries, fuel cells, capacitors, and supercapacitors are all energy storage devices. Batteries and fuel cells rely on the conversion of chemical energy into electrical energy. Capacitors rely on the physical separation of electrical charge across a dielectric medium such as a polymer film or an oxide layer. Supercapacitors rely on the separation of chemically charged […]

CAP-XX Products: A Competitive Review

CAP-XX is distinguished technologically by its thin, flat, and exceptionally light packages, excellent frequency response, best-in-class ESR (high power), ultra-low leakage current, high operating voltage ratings (up to 2.75V continuous), outstanding low temperature performance, and high maximum operating temperature (+85°C). CAP-XX supercapacitors deliver the high power and high energy required in many electronics applications.   […]

CAP-XX Products: A Technology Overview

CAP-XX products are the result of pioneering supercapacitor research, materials expertise and superior production technologies. CAP-XX’s breakthrough technology delivers supercapacitors with unrivaled power density, excellent energy density, high frequency response, low leakage current, operating voltages of us to 2.75V and operating temperature ranges of up to +85°C. Each supercapacitor cell contains several layers of paired electrodes. […]


CAP-XX offers industry-leading supercapacitor technology, and is the only company that is totally focused on supercapacitor solutions for portable and wireless applications. CAP-XX supercapacitors utilize patented technology to deliver both high capacitance and very low ESR – the highest power density in the industry. This combination of low ESR and high capacitance in a thin, […]