Research Article
Effects of Carbon Fiber Compression Ratio and Electrolyte Flow Rate on the Electrochemical Performance of Vanadium Redox Batteries
Table 2
4 mm carbon fiber charge and discharge settlement results with different compression ratios.
| CR (%) | CD | 60 mA/cm2 | 80 mA/cm2 | 100 mA/cm2 | PV | EV | EE | EC | OD | ED | EV | EE | EC | OD | ED | EV | EE | EC | OD | ED | (V) | (%) | (%) | (%) | (W/L) | (Wh/L) | (%) | (%) | (%) | (W/L) | (Wh/L) | (%) | (%) | (%) | (W/L) | (Wh/L) |
| 10 | 2 | 75.02 | 73 | 97.31 | 292.75 | 70.59 | 66.96 | 63.96 | 95.52 | 264 | 25.00 | 63.3 | 54.07 | 85.43 | 250.5 | 29.78 | 3 | 78.41 | 77.95 | 99.41 | 305 | 100.3 | 74.5 | 72.14 | 96.83 | 289.2 | 54.07 | 65.86 | 62.1 | 94.29 | 258.5 | 55.72 | 4 | 82.99 | 79.17 | 95.39 | 316 | 130.7 | 89.11 | 67.27 | 73 | 329 | 124.3 | 68.99 | 65.57 | 95.05 | 269.8 | 80.55 | 5 | 84.88 | 79.18 | 93.29 | 320 | 137.1 | 90.14 | 70.2 | 78.78 | 331.5 | 137.4 | 71.78 | 67.93 | 94.63 | 279.8 | 109.6 |
| 20 | 2 | 83.6 | 74.73 | 89.36 | 315.8 | 142.1 | 91.74 | 85.34 | 94.68 | 336 | 184.2 | 82.63 | 74.79 | 90.51 | 314 | 124.82 | 3 | 87.24 | 83.47 | 95.68 | 325 | 193.7 | 92.16 | 74.85 | 81.57 | 335.8 | 179.5 | 86.11 | 80.5 | 93.49 | 322.5 | 154.26 | 4 | 88.75 | 86.76 | 97.76 | 327.5 | 206.2 | 88.26 | 85.26 | 96.24 | 325.5 | 162.5 | 87.38 | 81.74 | 93.55 | 325.5 | 162.48 | 5 | 89 | 84.29 | 94.71 | 327.5 | 208.5 | 89.13 | 86.12 | 95.13 | 326.5 | 163.2 | 87.89 | 82.09 | 93.41 | 326.5 | 163.16 |
| 30 | 2 | 86.49 | 79.63 | 91.84 | 321.75 | 183.1 | 81.02 | 78.82 | 97.27 | 307.5 | 112.9 | 84.57 | 74.84 | 88.5 | 320.5 | 99.8 | 3 | 91.33 | 86.5 | 94.71 | 331.75 | 222.7 | 84.97 | 84.72 | 99.7 | 319.5 | 149.2 | 85.65 | 77.21 | 90.15 | 322.25 | 116.73 | 4 | 91.67 | 86.57 | 94.82 | 330.5 | 231 | 87.77 | 84.63 | 96.42 | 324.75 | 165.4 | 87.96 | 81.01 | 92.1 | 325 | 128.01 | 5 | 91.82 | 86.86 | 94.58 | 331.5 | 236.5 | 89.21 | 84.67 | 94.92 | 326.5 | 171.1 | 88.46 | 80.67 | 91.2 | 323 | 118.78 |
| 60 | 2 | 92.86 | 53.56 | 57.4 | 331.8 | 64.23 | 89.11 | 67.27 | 73 | 329 | 124.2 | 85.27 | 43.27 | 50.74 | 318.5 | 45.39 | 3 | 93.67 | 65.57 | 70.62 | 333 | 89.17 | 90.14 | 70.2 | 78.78 | 331.5 | 137.4 | 89.9 | 75.69 | 84.19 | 329.5 | 98.94 | 4 | 93.3 | 59.62 | 64.25 | 337.8 | 136.4 | 91.74 | 85.34 | 94.68 | 336 | 184.2 | 90.92 | 77.26 | 84.98 | 330.25 | 109.53 | 5 | 92.81 | 56.86 | 60.71 | 338.8 | 239.2 | 92.16 | 74.85 | 81.57 | 335.7 | 179.5 | 90.5 | 67.74 | 74.85 | 331 | 115.21 |
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