ultra capacitor technology powers electronic circuits


Posted on Feb 5, 2014

As the market strives for lighter, more compact wireless and portable devices with more ingenious features crammed into an ever-tighter space, a related quest ensues for the next power supply innovation ” a powerful, compact, long-lasting, economical and safe battery. Although progressing toward this end, current battery technology often comprom


ultra capacitor technology powers electronic circuits
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ises the desired space and weight specifications without properly satisfying peak power requirements. Ultracapacitors, also known as supercapacitors, offer an alternative source that promises to circumvent the battery scramble and extract greater efficiency from existing power sources. Because of high price and manufacturability issues, this electric double layer capacitor (EDLC), also known as a pseudo capacitor, isn`t popular among engineers. However, it offers boundless growth potential because it responds to key market and societal needs: It`s environmentally friendly, helps conserve energy, and enhances the performance and portability of consumer devices. Ultracapacitors also are free from characteristic battery problems, such as limited cycle life, cold intolerance and critical charging rates. Ultracapacitors are being developed as an alternative to pulse batteries. To be an attractive alternative, ultracapacitors must have at least one order of magnitude higher power and a much longer shelf and cycle life than batteries. Ultracapacitors have much lower energy density than batteries, and their low-energy density is, in most cases, the factor that determines the feasibility of their use in a particular high-power application. Available for decades, a conventional electrolytic capacitor is an energy-storage device that can be compared to a container that gradually fills with electrical energy and then delivers it when...




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