Abstract: Aluminum-air battery units and stacks are provided with frames configured to mechanically support the anode of each unit, within a housing configured to support the frame and the air cathode(s) mechanically, sealably hold the electrolyte within the housing and in fluid communication with openings in the housing—forming one or two sided electrochemical cell in each unit. The frame comprises a protective strap configured to protect edges of the rectangular anode against corrosion by the electrolyte during operation, and also an external trapezoid shape that is configured to press the protective strap against the edges of the rectangular anode upon insertion of the frame with the anode into the housing. Various embodiments comprise, spacers between the anode and cathodes and grids supporting airways to the cathodes. In disclosed configurations, anode may be replaced after electrolyte evacuation while maintaining the stack sealed and quickly ready for renewed operation.

Abstract: Aluminum-air battery units and stacks are provided with frames configured to mechanically support the anode of each unit, within a housing configured to support the frame and the air cathode(s) mechanically, sealably hold the electrolyte within the housing and in fluid communication with openings in the housing—forming one or two sided electrochemical cell in each unit. The frame comprises a protective strap configured to protect edges of the rectangular anode against corrosion by the electrolyte during operation, and also an external trapezoid shape that is configured to press the protective strap against the edges of the rectangular anode upon insertion of the frame with the anode into the housing. Various embodiments comprise, spacers between the anode and cathodes and grids supporting airways to the cathodes. In disclosed configurations, anode may be replaced after electrolyte evacuation while maintaining the stack sealed and quickly ready for renewed operation.

Abstract: This invention provides systems and methods for treating electrodes used in batteries and electrochemical cells upon battery/cell shutdown and prior to battery standby mode. Systems and methods of this invention are directed toward the use of aerosol to treat the electrode and to protect the electrode and/or the environment from undesired reactions.

Abstract: Aspects of the invention are related to a system for replacing electrolyte in a battery. The system comprising: a first tank for holding off-board electrolyte and a second tank for receiving on-board electrolyte. The system further includes fluid conduits to connect the first tank and the second tank to the battery and a controller to control transfer of the on-board electrolyte from the battery to the second tank and to control transfer of off-board electrolyte from the first tank to the battery.

Abstract: System and method for connection of a substitute load in batteries that are adapted to provide electrical power to an external power consuming unit. The batteries are connected to an electrical power consuming element, that is connectable to the batteries in case of undesired disconnection of the external power consuming unit. A controllable switching unit is configured to connect the power consuming element between the anode and the cathode when a load sensing unit senses ‘reduced load’ status of the electrical load between the anode and the cathode of the battery.

Abstract: A metal/air electrochemical cell comprising at least one air cathode, an alkaline electrolyte and at least one anode component, wherein the anode component is in the form a spatial body bounded by a surface consisting of two opposite parallel bases and lateral sides, with said lateral sides being provided thereon with a protective member comprising a resilient polymer seal.

Abstract: Flow directing element in a metal air cell is configured to cause evenly distributed flow of aqueous electrolyte solution electrolyte in it over the anode. Flow distributing element in a metal air cell is configured to lengthen the path of electrolyte flow from an inlet to the anode, thereby to increase ohmic resistance to shunt currents in the cell. A battery with these cells consumes the metal in the metal anodes evenly and with minimized shunt currents.

Abstract: This invention provides systems and methods for treating electrodes used in batteries and electrochemical cells upon battery/cell shutdown and prior to battery standby mode. Systems and methods of this invention are directed toward the use of aerosol to treat the electrode and to protect the electrode and/or the environment from undesired reactions.

Abstract: Aspects of the invention are related to a system for replacing electrolyte in a battery. The system comprising: a first tank for holding off-board electrolyte and a second tank for receiving on-board electrolyte. The system further includes fluid conduits to connect the first tank and the second tank to the battery and a controller to control transfer of the on-board electrolyte from the battery to the second tank and to control transfer of off-board electrolyte from the first tank to the battery.

Abstract: Flow directing element in a metal air cell is configured to cause evenly distributed flow of aqueous electrolyte solution electrolyte in it over the anode. Flow distributing element in a metal air cell is configured to lengthen the path of electrolyte flow from an inlet to the anode, thereby to increase ohmic resistance to shunt currents in the cell. A battery with these cells consumes the metal in the metal anodes evenly and with minimized shunt currents.

Abstract: A metal/air electrochemical cell comprising at least one air cathode, an alkaline electrolyte and at least one anode component, wherein the anode component is in the form a spatial body bounded by a surface consisting of two opposite parallel bases and lateral sides, with said lateral sides being provided thereon with a protective member comprising a resilient polymer seal.