Imbalanced supercapacitor was constructed by using various ratio of activated carbon (AC) of positive to negative electrode. The\nelectrochemical behavior of imbalanced supercapacitor was investigated using 1.0Mspiro-(1,1')-bipyrrolidinium tetrafluoroborate\nelectrolyte in propylene carbonate. The results showed that there are some factors that influenced the imbalanced supercapacitor\nwith different AC ratio of positive to negative electrode, the utilization of AC, electrode potential distribution, and life cycle.The\nimbalanced supercapacitor with an AC weight ratio of 80 : 120 of positive to negative electrode has an average potential distribution\nin each electrode, and it revealed the best electrochemical performance: specific capacitor was 39.6 Fââ?¹â?¦gâË?â??1,while the charge-discharge\nefficiency was 97.2% after 2000 life cycle tests.
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