Table. 2 Comparison of electrochemical activity of BiOBr//BiOBr device and other related symmetric supercapacitor devices with literatures.
Symmetric device | Specific capacitance (F/g) | Energy density (Wh/kg) | Powder density (W/kg) | Stability / Cycles | Ref |
|---|---|---|---|---|---|
MnO2//MnO2 | 121.6 | 97.3 | 1200 | 90% / 5000 | |
NiCo2O4// NiCo2O4 | 32 | 4.5 | 669 | 8 | |
SiC//SiC | 188 | 31.43 | 18,800 | 97.05% / 30,000 | |
MoO3/rGO// MoO3/rGO | 369 | 51 | 500 | 91% / 1000 | |
ZnMn2O4// ZnMn2O4 | – | 86 | 532 | 93% / 1000 | |
Ti-V–N//Ti-V–N | 21.35 | 4.27 | 5.45 | – | |
NiCo2O4//NiCo2O4 | 118 | 59 | 5095 | 84.61% /5000 | |
CuO-Cr2O3//CuO-Cr2O3 | 280 | 99 | 3000 | 91% / 2000 | |
Ba2V2O7// Ba2V2O7 | 170 | 53.3 | 750 | – | |
NiCo2O4// NiCo2O4 | – | 16.4 | 275.5 | 90.5% / 5000 | |
BiOBr//BiOBr | 32 | 10 | 750 | 98%/ 3000 | This Work |
