There is disclosed a cartridge for a portable electronic device power system configured as a flat, prismatic, air-breathing zinc-air battery comprising (a) an anode assembly having a structural backbone, current collectors, and a gel solution comprising a mixture of amalgamated zinc powder, aqueous potassium hydroxide and a gelling agent, (b) a porous separator sheet, and (c) an air-breathing cathode having an electrode impregnated with reductive catalyst, and (d) a serialized electrical connectivity path having low ohmic resistance characteristics. More specifically, there is disclosed a prismatic format, flat rectangular disposable primary battery having two or more zinc-air batteries connected in series, wherein each zinc air battery comprises: (a) an anode assembly having a structural backbone, current collectors, and a gel solution comprising a mixture of amalgamated zinc powder, aqueous potassium hydroxide and a gelling agent, (b) a porous separator sheet, and (c) a catalytically active oxygen-reductive cathode.

The utility model provides a liquid-proof metal-air electrode component and a metal-air cell. The liquid-proof metal-air electrode component comprises: a plastic bottom shell, an air electrode and a metal electrode, wherein the metal electrode and the air electrode are respectively provided on the back surface and the front surface of the plastic bottom shell, the metal electrode is fixed to the plastic bottom shell, and the periphery of the air electrode is encapsulated in the plastic bottom shell. The utility model further provides a metal-air cell using the liquid-proof metal-air electrode component.

An object of the present invention is to improve the performance of a metal-air battery. The metal-air battery includes an air electrode, an anode, and an electrolyte sandwiched between the air electrode and the anode. The air electrode includes a co-continuous body having a three dimensional network structure formed by an integrated plurality of nanostructures having branches. A magnesium alloy is used for the anode, and a weak acidic salt containing no chloride ion or a salt considered to have a buffering capacity is used for the electrolyte. Consequently, the present invention can efficiently utilize electrons and suppress passivation and self corrosion of the anode, thereby improving the performance of the metal-air battery.

State-of-the-art flow batteries suffer from drawbacks such as congestion of their electrodes, defects in liquid tightness, or shunt currents, all of which may lead to efficiency drop. Solution The problem is solved by a flow battery comprising multi-chambered ducts (100) mutually plugged together, each duct containing an integrated air electrode (111) and partition walls being partly ion-permeably perforated and partly impermeable, and nonconducting joining elements with integrated passages, the joining elements plugged bilaterally onto the ducts (100).

Provided are metal-air scavenger systems that use metal surfaces to harvest energy for powering microelectronic devices; such devices can be attached to exposed metal surfaces and then generate power by electrochemically oxidizing the metal surface. The disclosed devices can be configured to effect relative motion between the device and the metal, thus allowing the device to utilize an entire metal surface to generate power and also allowing the device to feed metal to itself to generate power.

A system for extending a range of an electric vehicle includes a graphene-based metal-air battery system (GMABS), an electrolyte management system (EMS), a flow management system (FMS), one or more auxiliary power sources, and a real-time monitoring and feedback system (RMS). The GMABS includes multiple cells electrically connected to each other and filled with an electrolyte for initiating a reaction to generate power. The EMS regulates a temperature of the electrolyte flowing through the cells. The FMS regulates a circulation of the electrolyte in the GMABS. At least one auxiliary power source is connected to the GMABS to receive and deliver the power to components of the electric vehicle. The RMS continuously computes and monitors a state of charge of each auxiliary power source in real time to facilitate a continuous power delivery to the electric vehicle, thereby extending the range of the electric vehicle.

A metal air battery cell has a sealed pouch defined by a metallocene film and a gas and liquid impermeable flexible layer, and an electrochemical cell contained within the pouch. The metallocene film and gas and liquid impermeable flexible layer are sealed to each other and around the electrochemical cell.

A zinc-air battery cell assembly comprising: a layer of anode material; one or more layers of cathode material; a separator directly between and engaging both the layer of anode material and the layer of cathode material that acts as both an electronic insulator and an ion conductive path between the layer of anode material and the layer of cathode material; and a diffusion member directly engaging the layer of cathode material.

A method for renovation of a consumed anode in a metal-air cell without dismantling the cell according to embodiments of the present invention comprising circulating electrolyte through the cell to evacuate used slurry from the cell, circulating electrolyte with fresh slurry into the cell and allowing sedimentation of the fresh slurry inside the cell to form an anode and compacting the slurry to reduce the gaps between its particles. A meta-air cell enabling renovation of a consumed anode without dismantling the cell defining first outer face of the cell, air cathode layer adjacent the porous wall, separator wall disposed on the inner face of the air cathode layer, cell space volume to contain electrolyte and metal granules slurry, current collector layer to form an anode, made of current conductive material disposed in the space and flexible wall defining a second outer face of the cell wherein the flexible wall is adapted to be pushed towards inside of the cell subject to pressure applied to its outer face, thereby to reduce the volume of the space.

The embodiments of the present invention provide a system for optimizing a performance of metal-air fuel cells. The system includes the metal-air fuel cells comprising a plurality of stacks of metal-air fuel cell units. The plurality of stacks of metal-air fuel cell units are designed to be connected in at least one of a series configuration and a parallel configuration. Each metal-air fuel cell unit comprises at least one metal anode sheet placed between at least two cathodes sheets. One or more cathode electrodes (111) are held together with one of an epoxy and a silicone based elastomer adhesive. The at least one metal anode sheet and the at least two cathode sheets are included in a shell apparatus.