NOVELTY - The system (300) has a first electrolyte tank including a liquid electrolyte. A second electrolyte tank is operably connected to a cell (302). A memory (344) includes program instructions. Sensors (340, 341) generate a signal associated with a sensed condition of the battery system. A controller (342) is operably connected to the sensors, a pump (320), and the memory and adapted to execute the program instructions to determine whether a dead zone condition exists based upon the signal, and control the pump to pulse flow of the liquid electrolyte to the cell based upon a determination result.    USE - Dihydrogen/bomine flow battery system.    ADVANTAGE - The system operates efficiently and delivers sufficient power upon peak demands of power in various conditions, and reduces formation of regions with slow transport processes and depleted levels of active material during normal cell operation, while balancing power drain from operating pumps to increase transport processes in the flow battery system. The controller adjusts flow based on conditions in the battery to prevent and remedy dead zones or other detrimental conditions so as to minimize performance losses and flow losses in the battery system. The system can pulse pump speed during a single charge or discharge cycle in response to sensor outputs from the battery system at specified intervals so as to minimize efficiency losses in the flow battery and reduce or prevent corrosion processes. The system is configured to operate frequently at high current densities so as to minimize plant costs that are needed to meet particular power demands. The system can pulse a flow rate through the battery to allow the battery system to operate at a lower nominal flow rate for reducing power required to operate the pump and increasing overall efficiency of the flow battery system, while limiting potential for dead zone formation, and enable increased utilization of active materials in the battery for improving energy storage capacity of the flow battery system.    DETAILED DESCRIPTION - The first tank is a compressed dihydrogen tank (306) and a bomine/hydrogen bromide storage tank (318). The sensors are selected from a group consisting of a voltage sensor and a carbon dioxide sensor. An INDEPENDENT CLAIM is also included for a method for operating a flow battery system.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of a dihydrogen/bomine flow battery system.    Dihydrogen/bomine flow battery system (300)    Cell (302)    Compressed dihydrogen tank (306)    Bomine/hydrogen bromide storage tank (318)    Pump (320)    Sensors (340, 341)    Controller (342)    Memory (344)