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Thickness dependent specific capacity Figure S35. Charge density as a function of film thickness. The dotted lines are linear fits with slope 1 on a log-log scale to the data. Figure S35 shows the thickness dependent charge density of the three polymers presented in this study and extracted from cyclic voltammetry performed at 50 mV s-1. For the p(gT2) and the p(g7NDI-gT2) polymers, the reversible charge of the second CV was taken for their respective datasets. For p(ZI-NDI-gT2) the reversible charge from the 1st CV was instead considered, probably representing an underestimate of the total charge that can be accumulated in films deposited from DMSO as discussed in the previous section. The three datasets show a close to linear relation between charge density and thickness in the range 10 to 200 nm (the fits are run with slope constraint to 1), suggesting that charging and discharging occurs for all the polymers in the second timescale. The resulting specific densities are shown in the legend. These values are conservative estimates of the specific capacity for the polymers for the following reasons: - For the p(gT2) polymer a value of 25 mAh cm-3 was found considering scanning of the polymer up to 0.5 V vs Ag/AgCl. Based on the discussion above we can conclude that this is an underestimate of the potential specific capacity of p(gT2) polymer films in that larger values are expected when scanning to more positive potentials (up to 35 mAh cm-3 when scanning up to 1.1 V vs Ag/AgCl). One expects however the coulombic efficiency to drop significantly under these conditions as shown in Figure S32. - For p(g7NDI-gT2) we consider only the charge accumulated in films scanned to -0.55V vs Ag/AgCl. - For p(ZI-NDI-gT2) we showed in the previous section that films deposited from methanol show lower reversibility during the first CV scan compared to those deposited from DMSO. The charge injected in the film during the first cyclic voltammetry measurement (displayed in Figure S34) would yield specific capacity in the order of 65 mAh cm-3. 50PDF Image | salt water battery with high stability
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Product and Development Focus for Salgenx
Redox Flow Battery Technology: With the advent of the new USA tax credits for producing and selling batteries ($35/kW) we are focussing on a simple flow battery using shipping containers as the modular electrolyte storage units with tax credits up to $140,000 per system. Our main focus is on the salt battery. This battery can be used for both thermal and electrical storage applications. We call it the Cogeneration Battery or Cogen Battery. One project is converting salt (brine) based water conditioners to simultaneously produce power. In addition, there are many opportunities to extract Lithium from brine (salt lakes, groundwater, and producer water).Salt water or brine are huge sources for lithium. Most of the worlds lithium is acquired from a brine source. It's even in seawater in a low concentration. Brine is also a byproduct of huge powerplants, which can now use that as an electrolyte and a huge flow battery (which allows storage at the source).We welcome any business and equipment inquiries, as well as licensing our flow battery manufacturing.CONTACT TEL: 608-238-6001 Email: greg@salgenx.com (Standard Web Page)