PDF Publication Title:
Text from PDF Page: 125
1,8 1,6 1,4 1,2 1,0 150 mA/cm2 104mV E/V 56mV CF@TiO2 N500 CF@TiO2 N900 0 2 4 6 8 10 Specific Capacity / AhL-1 Figure 6.32 – Comparative between voltage profiles for CF@TiO2 N500 and CF@TiO2 N900 for current density applied of 150 mA cm-2. Subsequently, Figure 6.33a and b presents the Coulombic, Voltage and Energy efficiency for the electrodes CF, CF@TiO2 N500 and CF@TiO2 N900 respectively, as we cycle with current densities from 25 to 150 mA cm-2. The sample annealed at 900oC shows smaller losses as the current density is increased, and therefore a higher efficiency. A maximum energy efficiency of 86.5% is seen at the lowest current density (25 mA cm-2), dropping to 71% at 150 mA cm-2. These values are lower compared to the state of the art in the literature226 as a consequence of different single cell set-up design and conditions. Nevertheless, for the same experimental conditions it is clear that the coating of nitride TiO2 on the surface of the graphite felts has a drastic improvement on performance of the battery compared to CF. Similarly, the decrease in energy efficiency for CF@TiO2 N500 is markedly less than for the CF, where the efficiency decays abruptly when the current density applied increases. Especially up to 100 mA cm-2, where the value collapses due to large overpotential, as seen in Figure 6.34d. 124PDF Image | Redox Flow Batteries Vanadium to Earth Quinones
PDF Search Title:
Redox Flow Batteries Vanadium to Earth QuinonesOriginal File Name Searched:
FJVG_TESIS.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 (Standard Web Page)