Supercapacitor With Non-Planar Electrodes
High surface area, which enables high energy storage densityHigh levels of capacitance within a small footprint (cm2 or less)High electrical conductivity, which enables high power densitySolid state device: thinner, lighter, more flexible
On-chip energy storageEmergency backup power supplyLow-power remote sensing devicesMiniaturization of supercapacitor devices
UCLA researchers have developed a supercapacitor structure with non-planar electrodes and solid-state electrolytes. One possible electrode structure is an array of conductive quasi-one-dimensional nanostructures formed vertically and orthogonal to a planar metallic surface. The design combines the advantage of high surface area and high conductivity for nanostructured electrodes with the convenience of solid-state electrolyte, enabling miniaturization of supercapacitor devices for on-chip applications.The high surface area and high electrical conductivity allow excellent energy and power density.
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Background Supercapacitors are widely applicable and have been developed commercially, usually for bulk energy storage applications. Supercapacitors are significantly more efficient for rapid charge-discharge cycles, such as those seen in an electric car. A supercapacitor device is typically composed of two metal plates and a liquid electrolyte. Because of the liquid electrolyte, these supercapacitors require tough, rigid packaging and are resistant to miniaturization. By contrast, standard capacitors use a solid electrolyte to minimize internal resistance and maximize charge retention. Related Materials Additional Technologies by these Inventors Tech ID/UC Case 28906/2011-469-0 Related Cases 2011-469-0
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