Abstract: A leak detection sensor for detecting a leakage of an electrolyte solution in a flow battery system is provided. The sensor includes a sensor housing, the sensor housing being at least partially surrounded by a fluid and having mounted therein at least one light source.

Abstract: An apparatus and method for monitoring energy storage devices is disclosed. A monitoring system that monitors an energy storage device collects and stores operating data from the device and relays that data through a communications system to one or more servers. The servers can store the operating data from each of the monitored energy storage devices.

Abstract: A start-up plating process for a flow cell battery is disclosed. Upon start-up of the flow-cell stack, catalysts may have deplated from the electrodes. The catalyst is replated to the electrode by application of currents to the stack prior to circulating electrolyte fluids.

Abstract: An apparatus and method for monitoring energy storage devices is disclosed. A monitoring system that monitors an energy storage device collects and stores operating data from the device and relays that data through a communications system to one or more servers. The servers can store the operating data from each of the monitored energy storage devices.

Abstract: A method for operating an electronic system with a dongle is provided. In some embodiments, the method includes receiving system information from system components. The method further comprises continuing or ceasing to operate the electronic system based upon the system information; and writing system information to the dongle.

Abstract: A redox cell rebalance system is provided. In some embodiments, the rebalance system includes electrochemical cell and a photochemical cell. In some embodiments, the photochemical cell contains a source of ultraviolet radiation for producing HCl from H2 and Cl2 generated by the system. The HCl product may be collected or circulated back through the system for the rebalancing of electrolytes. A rebalance cell for use in a rebalance system is also provided. In some embodiments, the rebalance cell is the combination of an electrochemical cell and a photochemical cell. In some embodiments, a source of ultraviolet radiation is housed in the cathode compartment of the rebalance cell. In some embodiments, the source of ultraviolet radiation is used to effect the formation of HCl from H2 and Cl2 present in the rebalance cell. The HCl is dissolved in aqueous electrolytes contained in the rebalance cell, which can subsequently be circulated through a rebalance system for the rebalancing of redox cells.

Abstract: In accordance with some embodiments, a buck-boost circuit is contemplated which is bi-directional. That is, the buck-boost circuit be configured to produce a load voltage for a load responsive to a source voltage from a voltage source, and the buck-boost circuit may also be configured to produce a charging voltage for the voltage source responsive to a second voltage source connected to the load. In an embodiment, the buck-boost circuit may be operating in boost mode when providing the load voltage and may be operating in buck mode when providing the charging voltage.

Abstract: A leak detection sensor for detecting a leakage of an electrolyte solution in a flow battery system is provided. The sensor includes a sensor housing, the sensor housing being at least partially surrounded by a fluid and having mounted therein at least one light source.

Abstract: A controller for controlling a flow cell battery system is provided. The controller operates the flow cell battery system in a plurality of states including a plating state, a charging state and a discharge state.

Abstract: A battery charging system according to some embodiments includes a plurality of power modules coupled to a backplane, each of the plurality of power modules providing an electrical indication of type of power module to the backplane, the power modules of each type providing an electrical function associated with charging a battery consistent with the type of power module; and a controller that determines the number of power modules of a particular type and supplies control signals that allocate to each of the power modules of the particular type a portion of the electrical function.

Abstract: A line locator having the capability of determining the horizontal position with respect to a line is described. The line locator includes a left sensor and a right sensor of any orientation. The left sensor and the right sensor are coupled to a convolution amplifier that amplifies the sum of the output signals from the left sensor and the right sensor. The detection circuitry includes automatic gain control amplification where the automatic gain control signal is obtained digitally from a digital controller. In addition, the detection circuitry includes phase detection circuitry where the phase reference signal is obtained from an external transmitter that is coupled to the line. In addition, the AGC signal and the phase reference signal may both be obtained by processing output signals from magnetic field detectors in the line locator.