Study on Electric Double-Layer Capacitor Using Activated Carbons with Different Pore Properties
Keywords:
Activated carbon, Specific surface area, Micropore volume, Mesopore volume, Electric double layerAbstract
In this paper, electric double-layer capacitors were produced using commercial activated carbons which were modified with different pore properties. It was found that the micropore distribution shifted to a larger size as the additional activation yield decreased. Moreover, the higher gravimetric cell capacitance was attributable to the micropores with a diameter of around 0.8 nm. Additionally, the durability test results showed that the specific mesopores decreased the capacitance and increased the internal resistance. A better fabrication method of the activated carbon for higher cell performance was discussed.
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