PDF Publication Title:
Text from PDF Page: 132
8 Half – cell performance of Carbon Felt Samples Charge / Discharge Measurements Charge / discharge measurements were carried out determine if the rate constants calculated from cyclic voltammetry and polarization curves accurately reflect the performance of the carbon felt when used in a working cell. As previously mentioned the voltage drop from electrical resistance was corrected for post run. In a full-cell, the electrical resistance is not typically corrected for, as the change in resistance can be due to the conductivity of the felt. However, in this half-cell set up changes in resistance are more likely due to changes in solution resistance from the distance of the reference electrode to the working electrode. The voltage efficiency (VE), coulombic efficiency (CE) and energy efficiency (EE) were calculated using Eqs. 2.5-2.7 and are presented, (Table 8.2). Table 8.2: Performance characteristics for selected carbon felt samples. Felt VE CE EE (%) (%) (%) GFE 81.9 93.8 76.8 G100 82.8 97.9 81.1 C100 87.1 98.2 85.5 GFE Thermal 89.1 98.5 87.7 k0app (cm s-1) 1.4 x 10-5 2.3 x 10-5 2.2 x 10-5 4.3 x 10-5 As expected based on the rate constant calculated from polarization curve measurements, the GFE Control felt sample had the lowest efficiency of the three felts (GFE, C100, G100). Whilst the GFE felt sample thermally treated at 600 oC showed a noticeable improvement in performance over the untreated felt, increasing energy efficiency from 76.8% to 87.7%. 120PDF Image | Electron Transfer Kinetics in Redox Flow Batteries
PDF Search Title:
Electron Transfer Kinetics in Redox Flow BatteriesOriginal File Name Searched:
electron-transfer-flow-batteries-thesis.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Salt water flow battery technology with low cost and great energy density that can be used for power storage and thermal storage. Let us de-risk your production using our license. Our aqueous flow battery is less cost than Tesla Megapack and available faster. Redox flow battery. No membrane needed like with Vanadium, or Bromine. Salgenx flow battery
| CONTACT TEL: 608-238-6001 Email: greg@salgenx.com | RSS | AMP |