PDF Publication Title:
Text from PDF Page: 013
It is often noted that cost is currently prohibitive for the widespread deployment of RFBs for energy storage. The cost of a RFB system includes numerous components: the cell stacks including separators, electrolyte solutions, storage tanks, power-electronics equipment, the control system, pumps, valves and plumbing as well as the cost of assembly and installation costs [34]. A target capital cost of $100 per kWh has been suggested for large-scale grid storage of energy from renewable sources [37], while a recent cost analysis that considered the VRFB set a base case capital cost of $380 per kWh for a 1 MW/12 MWh system [38]. Both the electrolyte and the cell stack and membrane are implicated as substantial contributors to the capital cost of VRFBs [38,39]. The cost of the electrolyte is dependent on the price of vanadium per kg, while the acidic and oxidising environment of the VRFB requires the use of hardwearing yet costly Nafion ion exchange membranes. Thus, at the electrolyte level, possible improvements to the capital cost of RFBs relative to the VRFB could come from the use of lower-cost active materials and RFB chemistries that allow less expensive porous separators to be used. The different RFB chemistries have been summarised in several recent review papers [40 46] and there is a myriad of published reactions for the positive and negative electrode (see Table 1). Aqueous metal-based chemistries are complemented by both reports of non- aqueous RFBs and the emergence of active species based on organic molecules, as alternatives to the traditional and widely tested RFBs are continually devised. The themes of non-aqueous electrolytes versus aqueous electrolytes and non-metallic RFBs versus metal- ion chemistries are discussed herein. Page 13 of 63PDF Image | Redox Flow Batteries Concepts Chemistries
PDF Search Title:
Redox Flow Batteries Concepts ChemistriesOriginal File Name Searched:
5870EAF5-2D70-44C8-A0A7-62D3A1462269.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 |