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Iron Redox Flow Battery
The Iron Redox Flow Battery (IRFB), also known as Iron Salt Battery (ISB), stores and releases energy through the electrochemical reaction of iron salt. This type of battery belongs to the class of Flow battery, redox-flow batteries (RFB), which are alternative solutions to Lithium-ion battery, Lithium-Ion Batteries (LIB) for stationary applications. The IRFB can achieve up to 70% round trip energy efficiency. In comparison, other long duration storage technologies such as pumped hydro energy storage provide slightly higher efficiencie Science Setup and Materials The setup of IRFBs is based on the same general setup as other redox-flow battery types. It consists of two tanks, which in the uncharged state store electrolytes of dissolved Iron(II) chloride, iron(II) ions. The electrolyte is pumped into the battery cell which consists of two separated half-cells. The electrochemical reaction takes place at the electrodes within each half-cell. These can be carbon-based porous fel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flow Battery
A flow battery, or redox flow battery (after reduction–oxidation), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane. Ion transfer inside the cell (accompanied by flow of electric current through an external circuit) occurs through the membrane while both liquids circulate in their own respective space. Cell voltage is chemically determined by the Nernst equation and ranges, in practical applications, from 1.0 to 2.43 volts. The energy capacity is a function of the electrolyte volume and the power is a function of the surface area of the electrodes. A flow battery may be used like a fuel cell (where the spent fuel is extracted and new fuel is added to the system) or like a rechargeable battery (where an electric power source drives regeneration of the fuel). While flow batteries have certain technical advantages over conventional rechargeabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
