| Summary: | 碩士 === 國立成功大學 === 化學工程學系 === 102 === A gel polymer electrolyte (GPE) consisting of polyacrylonitrile (PAN)-interpenetrating crosslinked polyoxyethylene (PEO) network, donated as XANE, as a host, dimethylformamide as a plasticizer, and LiClO4 as a electrolytic salt was utilized for electric double layer capacitors due to its stable potential window and good mechanical strength as well as chemical stability. The conductivity value of XANE GPE with a tuned AN/EO ratio were ranged from 3.54 to 7.55 mS cm−1, in which all XANE GPEs were higher than that of liquid-phase liquid electrolyte (LE) (1.60 mS cm−1). For capacitor application, the capacitance values at low currents (0.125 A g-1) of XANE GPE cells were ranged of 196.1 to 247.0 F g-1, for comparison, the LE cell delivered an capacitance value of 183 F g−1 at the same discharge rate. The XANE GPE cell has a maximum energy density of 37.7 Wh Kg-1 and maintained 20 Wh kg-1 at a high power of 10 kW kg-1 when using a high porosity carbon electrode derived from mesophase pitch activation.
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