PDF Publication Title:
Text from PDF Page: 048
Study of redox flow battery systems for residential applications Figure 5.9 – Vanadium ions diffusivities (red>orange>yellow>blue), net crossover of vanadium ions by diffusion and net crossover of water by osmosis for VisBlue 8 (perfluoritaned ion exchange membrane) battery after 30 cycles. Adapted from [92]. According to Chen et al. [93], a low membrane thickness has a higher contribution for the vanadium ions crossover with the exchange of a higher potential efficiency, and thus, the reason for the extent of such crossover can be addressed to the membrane thickness used (75 μm) in VisBlue 8 battery. Also, VisBlue 8 battery was operated at a lower current density than the reported by Golden Energy Century (105 mA cm-2) which results in a capacity loss rate of 3.2 mAh L-1 cycle-1 instead of 0.8 mAh L-1 cycle-1. A higher current density results in faster charge/discharge cycles and, to maintain the overall performance of the battery, higher flow rates must be used. As consequence, concentration polarization decreases and a higher capacity is obtained [30, 31]. Furthermore, with the data from Figure 5.8 and the total volume of each tank, the mole number of V2+ and V5+ species that are being reduced and oxidized (storing/releasing energy) can be determined from Equation 5.2 and, thus the capacity limiting tank can be identified (Figure 5.10). Effective mole number = (𝐶charge − 𝐶discharge)×𝑉 (5.2) Vi+ Vi+ Chapter 5: Results and discussion 37PDF Image | Tubular Vanadium Air Redox‐flow battery
PDF Search Title:
Tubular Vanadium Air Redox‐flow batteryOriginal File Name Searched:
204521.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 |