All-solid-state flexible supercapacitors based on sodium copper chlorophyllin with ultra-high rate capability
2019
Abstract Sodium copper chlorophyllin (SCC) is an ideal candidate electronic material for environmentally benign and low-cost devices. In this work, SCC is used as electrodes, PVA/KOH gel as solid state electrolyte and cellulosic as a separator to fabricate all-solid-state supercapacitors (SCs). The experimental results show that the SCs have ultra-high rate capability up to 100 V/s and fast frequency response ( τ 0 = 7 ms), which imply an excellent capacitive behavior and fast charge propagations within the electrodes. The bending tests indicate the good bend ability and flexibility of SCC-based SCs. This study demonstrates the potential uses of SCC in green, renewable, low-cost and flexible SCs.
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