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2.3 Results and discussion 2.3.1 Design of coin-type cell The basic structure and components of a seawater battery cell are schematically depicted in the bottom portion of Figure 17. A photograph of a coin-type cell assembled into a flow-cell tester is shown in Figure 18. The key point of the cell is to completely separate the highly reactive Na metal anode part from the seawater catholyte, with only the NASICON exposed for the selective transport of Na+ ions between the two compartments. The NASICON ceramic was designed to be round in shape with a diameter of 16 mm for better processability and durability. Based on the size and shape of the NASICON ceramic, the upper cap and lower bottom were designed and made of stainless steel (Figure 23). The whole part of the upper cap was coated with polypropylene to prevent direct electronic contact with the bottom and to protect the stainless steel cap from rust when exposed to corrosive seawater (Figure 24). The NASICON ceramic was then sealed with the upper cap using an epoxy glue. The epoxy should be carefully selected to be stable with both seawater and the non-aqueous electrolyte. After loading the active material and cell compartments (spring and spacer) in the bottom part, the NASICON upper cap was placed on the bottom part and sealed by the specially designed sealing machine (Figure 25). The assembled coin-type anode part, highlighted by a red dotted box (Figure 17), was combined with cathode current collector and then loaded into a cell tester for electrochemical testing, where the seawater catholyte can be circulated in ambient air through a simple pumping apparatus (Figure 18, Figure 26). 40PDF Image | China solar seawater battery
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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)