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As described earlier, the Nafion211 membrane improves the performance in comparison to Nafion212. In addition, Nafion211 is less expensive than Nafion212 (1 mil versus 2 mil thick) which decrease the system costs as shown in Table 2. Also shown in Table 2 is the percent of chemical costs to the overall system costs. In both cases described in Table 2, the chemical costs are approximately 60% of the total system costs. The primary chemical cost in the system is attributed to vanadium. As the stack performance has increased over the past 5-6 years, the cost of vanadium has become more prominent in driving the total system cost. Additions to the stack to improve performance (membranes with better performance and lower cost, interdigitated design for higher flow rates, and higher performing electrodes) have significantly dropped the costs of major components in the system. Figure 12 illustrates the cost associated with major components in the system as the current density is increased. The primary goal was to increase the operational current density while maintaining a high stack energy efficiency. As shown in Figure 12, this has driven the cost of many components down with the exception of chemical costs which is attributed to vanadium. The chemical costs are approximately 60% of the total system cost at 400 mA/cm2. Figure 12. System cost for the all vanadium mixed acid redox flow battery Quarter 4 will focus on fabricating and testing a kW scale stack operated at 400 mA/cm2 with a high stack energy efficiency. 16PDF Image | High Current Density Redox Flow Batteries
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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
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