摘要:
The present invention provides an energy storage system that utilizes batteries of multiple compositions and provides improved load sharing between the different types of batteries is disclosed. The energy storage system includes at least two batteries, where each battery has a different chemical composition, for storing energy. One battery is configured for rapid charging/discharging and the other batter is configured for slower charging/discharging. Each battery is connected to a common connection via an energy regulator. The regulators are initially configured such that, the energy regulator connected; between the common connection and the battery configured for rapid charging/discharging responds initially to changes in power demand at the common connection. If power demand continues, the first regulator decreases the amount, of energy transferred between the first battery and the common connection while the second regulator begins transferring energy between the second battery and the common connection.
摘要:
An electrolyte system is provided for a rechargeable electrode zinc-halogen flow battery that utilizes a highly similar or identical electrolyte positioned on both sides of an ion-conducting membrane. The electrolyte system containing zinc salts, electrolyte conductivity enhancer, and an appropriate amount of bromine completing agent achieves significant improvements on battery energy efficiency, self-discharge rate, and electrolyte level cycle stability over the prior art electrolyte systems.
摘要:
A zinc complex compound, as well as a ligand that is capable of forming a zinc complex compound with a zinc ion Is provided to alter the electrode potential of the zinc ions and zinc redox reaction kinetics for use in an electrolyte flow battery. The ligand is selected from electron donor ligands and electron acceptor ligands and is utilized to Improve the performance of an electrolyte flow battery including' the zinc complex compound in the electrolyte. The ligand is mixed with zinc ions in an electrolyte solution to form a complex with the zinc ions that provides a decrease or increase in the redox potential from non-complexed zinc ions rendering the zinc complexes suitable for use in an electrolyte flow battery.
摘要:
A surfactant is provided that when combined with an aqueous solution containing bromine, such as in a zinc-bromine or hydrogen-bromine flow battery, enhances the dispersion of the bromine within the solution. The surfactants that can be employed to improve the dispersion of bromine within the electrolyte system include, but are not limited to, surfactants that include, but are not limited to, surfactants that possess a good stability in oxidative environment and a minimal foaming ability, such as the surfactant sodium cumene sulfonate. An appropriate amount may be within 0.01% to 3% by weight of the electrolyte solution.
摘要:
Method for joining incompatible materials that includes the steps of welding a first component (12) formed of a thermoplastic material and a second component (14) of a porous material to one another to form a subassembly and molding a third component (20) around the subassembly (10). The method enables the incompatible first component and the third component to be joined to one another, such as to form an electrolyte battery flow frame around an ion exchange material and/or microporous separator material in order to form a separator for an electrolyte flow battery.
摘要:
A system and method for controlling power flow in a hybrid power system includes a controller in communication with the hybrid power system. The controller is also in communication with at least one knowledge system to receive information related to power generation or power consumption within the hybrid power system. The controller generates a control command for each of the power converters in the hybrid power system and maintains a log of power flow to and from each device in the hybrid power system. The controller is also in communication with a provider of the utility grid and may generate the control commands for each of the power converters in response to commands provided from the provider of the utility grid.
摘要:
A system that efficiently captures and utilizes the maximum generation capacity of an alternate energy source is disclosed. A first power converter is provided between the alternate energy source and a load. The first power converter is selected such that the capacity of the power converter is less than the generation capacity of the alternate energy source. A second power converter is selected such that the capacity of the second converter is at least equal to the difference between the capacity of the alternate energy source and the first power converter. A battery is provided to store the additional energy generated by the alternate energy source, and the second power converter is connected between the output of the alternate energy source and the battery. The power output from the first power converter is utilized to control operation of the second power converter.