Ultra Capacitors

26 Feb, 2020 | Quest Components
 Ultra Capacitors

Ultra Capacitors

When connected to a voltage source, capacitors store electrical charges on their plates. Ultracapacitors, also known as supercapacitors or industrial capacitors, perform the same function on a larger scale, with a few key differences. Here’s what you need to know.


What Are Ultracapacitors?

Ultracapacitors have a higher capacitance value than a typical capacitor, with lower voltage limits. In comparison to electrolytic capacitors, an ultracapacitor can store 10 to 100 times more energy per unit volume or mass. You may have heard of ultracapacitors in the news in recent years when Elon Musk purchased a company that manufactures these devices. His interest was undoubtedly piqued because ultra capacitors can accept and deliver charges faster than typical batteries, and also withstand more charge and discharge cycles for a longer lifespan.

Aside from their higher capacitance, one of the key differences between a regular capacitor and an ultracapacitor is that ultracapacitors do not use a solid dielectric as an insulating layer between plates. Instead, they use electrostatic double-layer capacitance and electrochemical pseudocapacitance. These elements contribute to the ultracapacitor’s total capacitance. There’s much to be said about each of these forms of capacitance, but we’ll save that for another day.

Although ultracapacitors have impressive capacitances, they are often small in size. The voltage rating of ultracapacitors is usually three volts or less; in order to provide voltage, you’ll need to use capacitors in series or parallel.

Like standard capacitors, ultracapacitors do not support AC charges, and work with DC only.

Ultracapacitor Applications

While ultracapacitors may sound like a concept on the cutting edge of electrical engineering, they’re actually already used in a number of everyday applications. When there is a fluctuating load, like in laptops, smartphones, and digital cameras, ultracapacitors stabilize the power supply. In the industrial and commercial setting, ultracapacitors can be used as power buffers, voltage stabilizers, and micro grids for clean and renewable energy. Ultracapacitors are used in heart defibrillators, street lights, and even some electric screwdrivers.

Ultracapacitors are increasingly being used as a replacement for lead acid batteries or being incorporated into batteries. This is why one of the most common uses for ultracapacitors is in the automotive industry, to save fuel and provide faster acceleration. Other transportation-related uses include aviation, military vehicles, buses, railways, and construction equipment. In airplanes, ultracapacitors are used to open the plane’s doors in the event of an emergency. It’s hard to find an industry in which ultracapacitors are not used, and we can expect them to become integrated into even more applications in the coming decades.

If you’re looking for an industrial capacitor for your application, our knowledgeable team can help you find the best option to fit your needs.

Learn More About Quest Components Ultracapacitors

Quest Components provides a wide range of clients with industrial capacitors, as well as their standard counterparts. If you have questions about capacitors, our expert electricians are available to help. Call (623) 333-5858 today to inquire about a product or place an order or search and order capacitors here. We look forward to working with you.

Large Stock. Quick Response. Smart People.

Latest Blogs

News from GEYER - Reliable Supplier of Crystals and Oscillators

26 Feb, 2020 | Quest Components

Geyer has achieved another reduction in size with a TCXO dedicated to all kinds of IoT applications.

Capacitor Characteristics - Types of Capacitors | QuestComp.com

12 Nov, 2019 | Quest Components

Capacitor Characteristics - Types of Capacitors

View All Blog Posts