Binder free flexible symmetric supercapacitors are developed with nickel cobaltite micro-flower coated poly(3,4-ethylenedioxypyrrole) (NiCo2O4@PEDOP) hybrid electrodes. The free standing films of carbon nano-fibers (CNFs), synthesized by electrospinning, were sandwiched between the NiCo2O4@PEDOP hybrid and the electrolyte coated separators on both sides of the cells. The CNF film conducts both ions and electrons, and confines the charge at the respective electrodes, to result in an improved specific capacitance (SC) and energy density compared to the analogous cell without the CNF interlayers. A high SC of 1775 F g(-1) at a low current density of 0.96 A g(-1) and an SC of 634 F g(-1) achieved at a high current density of 38 A g(-1) coupled with an SC retention of approximate to 95% after 5000 charge-discharge cycles in the NCO@PEDOP/CNF based symmetric supercapacitor, are performance attributes superior to those achieved with NCO and NCO/CNF based symmetric cells. The PEDOP coating serves as a highly conductive matrix for the NCO micro-flowers and also undergoes doping/de-doping during the charge-discharge, thus amplifying the overall supercapacitor response, compared to the individual components. The CNF interlayers show reasonably high ion-diffusion coefficients for K+ and OH- propagation, implying facile pathways available for the movement of ions across the cross-section of the cell, and they also serve as ion reservoirs. The electrode morphologies remain unaffected by cycling in the presence of the CNF interlayer. LED illumination and a largely unaltered charge storage response were achieved in a mutli-cell configuration, proving the potential for this approach in practical applications.
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Cui, Bai
;
Lin, Hong
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Lin, Hong
;
Li, Jian-Bao
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Li, Jian-Bao
;
Li, Xin
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Li, Xin
;
Yang, Jun
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Yang, Jun
;
Tao, Jie
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
机构:
Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Hu, Fangyuan
;
Wang, Jinyan
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Wang, Jinyan
;
Hu, Shui
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Hu, Shui
;
Li, Linfei
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Li, Linfei
;
Shao, Wenlong
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Shao, Wenlong
;
Qiu, Jieshan
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Dalian Univ Technol, Sch Chem Engn, Liaoning Key Lab Energy Mat & Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Qiu, Jieshan
;
Lei, Zhibin
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Shaanxi Normal Univ, Sch Mat Sci & Engn, 620 West Changan St, Xian 710119, Shaanxi, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Lei, Zhibin
;
Deng, Weiqiao
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Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Mol React Dynam, Dalian 116023, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Deng, Weiqiao
;
Jian, Xigao
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Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Hu, Fangyuan
;
Wang, Jinyan
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Wang, Jinyan
;
Hu, Shui
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Hu, Shui
;
Li, Linfei
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Li, Linfei
;
Wang, Gang
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Dalian Univ Technol, Liaoning Key Lab Energy Mat & Chem Engn, Carbon Res Lab, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Wang, Gang
;
Qiu, Jieshan
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Dalian Univ Technol, Liaoning Key Lab Energy Mat & Chem Engn, Carbon Res Lab, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Qiu, Jieshan
;
Jian, Xigao
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Cui, Bai
;
Lin, Hong
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Lin, Hong
;
Li, Jian-Bao
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Li, Jian-Bao
;
Li, Xin
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Li, Xin
;
Yang, Jun
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
Yang, Jun
;
Tao, Jie
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Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R ChinaTsinghua Univ, State Key Lab New Ceram & Fine Proc, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
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Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Hu, Fangyuan
;
Wang, Jinyan
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Wang, Jinyan
;
Hu, Shui
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Hu, Shui
;
Li, Linfei
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Li, Linfei
;
Shao, Wenlong
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Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Shao, Wenlong
;
Qiu, Jieshan
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Dalian Univ Technol, Sch Chem Engn, Liaoning Key Lab Energy Mat & Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Qiu, Jieshan
;
Lei, Zhibin
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h-index: 0
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Shaanxi Normal Univ, Sch Mat Sci & Engn, 620 West Changan St, Xian 710119, Shaanxi, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Lei, Zhibin
;
Deng, Weiqiao
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h-index: 0
机构:
Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Mol React Dynam, Dalian 116023, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Deng, Weiqiao
;
Jian, Xigao
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Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
Dalian Univ Technol, Liaoning Prov Engn Res Ctr High Performance Resin, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Hu, Fangyuan
;
Wang, Jinyan
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Wang, Jinyan
;
Hu, Shui
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Hu, Shui
;
Li, Linfei
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Li, Linfei
;
Wang, Gang
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Dalian Univ Technol, Liaoning Key Lab Energy Mat & Chem Engn, Carbon Res Lab, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Wang, Gang
;
Qiu, Jieshan
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Dalian Univ Technol, Liaoning Key Lab Energy Mat & Chem Engn, Carbon Res Lab, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Qiu, Jieshan
;
Jian, Xigao
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Dalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China
Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R ChinaDalian Univ Technol, Liaoning Prov Engn Ctr High Performance Resins, Dalian, Peoples R China