Electrochemical capacitor and battery are electrochemical energy storage system. The former has a very good power...

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Physics

Electrochemical capacitor and battery are electrochemical energystorage system. The former has a very good power density (fastcharging/discharging) but low energy density, while the latter hasthe opposite properties. Please design a device that can have goodpower density and energy density by combining the electrochemicalcapacitor and battery. Please provide an equivalent circuit (use-||- to represent capacitor and -Â©- to represent battery) todescribe your design and how they work under charging/dischargingconditions. You can use multiple battery and capacitors for yourdesign and explain how it work. Do you think your design can beused to power an electric vehicle to compete with gasoline-basedcars?

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Figure 1Open in figure viewerPowerPointRagone plot for significant energy storage and conversiondevicesFrom the plot in Figure 1 it can be seen that supercapacitortechnology can evidently bridge the gap between batteries andcapacitors in terms of both power and energy densitiesFurthermore supercapacitors have longer cycle life than batteriesbecause the chemical phase changes in the electrodes of asupercapacitor are much less than that in a battery duringcontinuous chargingdischarging Yu Davies and Chen 2012 Thesekey See Answer

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