Development of all-solid-state mediator-enhanced supercapacitors with polyvinylidene fluoride/lithium trifluoromethanesulfonate separators
作者： Juanjuan Zhou , Jinshu Cai , Sirui Cai , Xiangyang Zhou , Azzam N. Mansour
DOI: 10.1016/J.JPOWSOUR.2011.08.051
关键词:
摘要: Abstract All-solid-state supercapacitors (SCs) were fabricated using a polyvinylidene fluoride (PVDF)/lithium trifluoromethanesulfonate (LiTFS) membrane as the separator and poly(ethylene oxide) (PEO)/lithium perchlorate (LiClO 4 ) polymer electrolyte in porous carbon electrodes. Two types of mediators, NaI/I 2 K 3 Fe(CN) 6 /K , added into PEO/LiClO that was used to fabricate The voltage window which SCs operated 2.5–3 V. results electrochemical measurements, including cyclic voltammetry galvanostatic charge/discharge, indicated -containing yielded high specific capacitances 209.0 138.8 F g −1 respectively. In addition for two mediator-containing SCs, both delivered energies (49.1 Wh kg at 1.6 kW kg SC 33.6 Wh kg 1.3 kW kg SC) due wide fast redox reactions between mediators.
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