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Abstract >> This study investigates the electrochemical characteristics of the hybrid cell that combined the advantageous characteristics of Li secondary battery
and supercapacitor, high energy density and high power density, respectively.
Electrochemical behaviors of the hybrid cell was characterized by charge/discharge, cycle and impedance tests. The hybrid cell using Li secondary battery
and supercapacitor had better discharge capacity and cycle performance than
that of using Li secondary battery only. Proper design of such a hybrid cell system
is expected to result in substantial benefits to the well being of the Li secondary
battery. The hybrid cell involving Li secondary battery for high energy density and
supercapacitor for high power density may be the possible solution for future energy storage system.
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