Table 2.
Summary of electrochemical performance of non-Faradaic capacitive electrode materials for supercapatteries
| Sl. no. | Electrode | Scan rate/current density | Electrolyte | Specific capacitance | Potential window | Energy density (max) | Power density (max) | Cyclic stability | Refs. |
|---|---|---|---|---|---|---|---|---|---|
| 1. | Ni(OH)2/AC/CNT║AC | 0.5 A g−1 | 6 M KOH | 82.1 F g−1 | 1.6 V | 32.3 Wh kg−1 | 504.8 W kg−1 | 83.5% after 1000 cycles | [101] |
| 2. | NiO–CNT║AC | 2 mV s−1 | 1 M Na2SO4 | 197.7 F g−1 | 1.8 V | 85.7 Wh kg−1 | 11.2 kW kg−1 | 91% after 4000 cycles | [102] |
| 3. | CuCo2O4/CuO║AC | 1 mV s−1 | 1 M KOH | 141 F g−1 | 1.6 V | 18 Wh kg−1 | 259 W kg−1 | 100% of after 5000 cycles | [103] |
| 4. | Ni2P║BDAC | 10 mV s−1 | 1 M KOH | 121 F g−1 | 1.6 V | 42 Wh kg−1 | 2856 W kg−1 | 100% of after 10,000 cycles | [110] |
| 5. | NiCo2O4 nanoneedle║Walnut shells derived activated carbon | 0.5 A g−1 | 2 M KOH | 52.3 F g−1 | 1.7 V | 21 Wh kg−1 | 424.5 W kg−1 | 99.3% after 5000 cycles | [114] |
| 6. | Nickel cobalt sulfide@CNT║VN@CNT | 0.4 A cm−3 | PVA/KOH + LiCl/PVA | 2332 F cm−3 | 1.6 V | 30.64 mWh cm−3 | 80 mW cm−3 | 91.9% after 5000 bending cycles | [117] |
| 7. | MnO2║rGO | 0.1 A g−1 | 1 M Na2SO4 | 160 F g−1 | 2.0 V | 22.2 Wh kg−1 | 101 W kg−1 | 90% after 3000 cycles | [133] |
| 8. | CNT@Ni(OH)2║3D graphene networks (3DGNs) | 1 A g−1 | 1 M KOH | 124 F g−1 | 1.6 V | 44.0 Wh kg−1 | 800 W kg−1 | 83% after 8000 cycles | [134] |
| 9. | Lamellar holey graphene hydrogel (LGH)║BDTD-rGO | 1 A g−1 | 1 M H2SO4 | 54 F g−1 | 1.4 V | 9.52 Wh kg−1 | 0.45 kW kg−1 | 81.3% after 5000 cycles | [135] |
| 10. | N doped reduced graphene oxide decorated on NiSe2║AC | 1 A g−1 | 3 M KOH | 113.8 F g−1 | 1.6 V | 40.5 Wh kg−1 | 841.5 W kg−1 | 85.1% after 10,000 cycles | [136] |
| 11. | NiCoP/NiCo-OH30║ZIF-67 (MOF) derived porous carbon | 1 A g−1 | 6 M KOH | 101 F g−1 | 1.6 V | 34 Wh kg−1 | 11.6 kW kg−1 | 92% after 1000 cycles | [138] |
| 12. | K0.5Mn2O4 nanosheets were subsequently grown on the carbon surface (NCMO)║ZIF-67 (MOF) derived nanoporous carbon | 10 A g−1 | 1 M Na2SO4 | 75 F g−1 | 2.4 V | 60 Wh kg−1 | 12.3 kW kg−1 | 92.6% after 10,000 cycles | [139] |
| 13. | TM-nanorods║MOF derived N-doped hierarchical porous carbon nanorods (TM-NPs) | 1 A g−1 | 2 M KOH | 161 F g−1 | 1.5 V | 47.1 Wh kg−1 | 17.1 kW kg−1 | 83.2% after 10,000 cycles | [140] |
| 14. | MOF derived Mn2O3/C composite║AC | 10 A g−1 | 1 M Na2SO4 | 45 F g−1 | 1.8 V | 54.9 Wh kg−1 | 22.6 kW kg−1 | 97% after 5000 cycles | [141] |