Development of electric double layer capacitor based on Nano material and hybrid application with fuel cell

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Ketjenblack as nano material was used for polarized electrodes to improve the capacitance of activated carbon-based Electric Double Layer Capacitor(EDLC). It was found that the Ketjenblack containing EDLC showed fairly high capacitance. An electrode was modified by plasma treatment. As the results, capacitance of EDLC single cells can be improved. We try to overcome the problem of the load change by using the EDLC connected to the fuel cell(FC). As the result, the power supply mode of the parallel connection of FC and EDLC can effectively solve the problem of load change.