Various embodiments of fuel cells and cell assemblies and methods of using the same are provided. Each fuel cell or cell assembly can simultaneously perform a charging function and a discharging function, the former by receiving electric currents from external charging devices, the latter by outputting an electric current to an electrical load. The fuel cell includes a metal layer serving as a positive electrode for the charging function, at least one air electrode layer serving as a positive electrode for the discharging function, as well as a zinc material serving as a negative electrode for both the charging and discharging functions. The fuel cell also includes a plurality of gas chambers via which an electrolyte is disposed into the fuel cell. The electrolyte is disposed up to a level located lower than the gas chambers.

An electrode stack can include a plurality of anode assemblies, each anode assembly including at least one anode layer attached to an anode tab; a plurality of cathode assemblies, each cathode assembly including at least one cathode layer attached to a cathode tab; a plurality of separators; an anode feedthrough bridge arranged to engage each anode tab of each of the plurality of anode assemblies; a cathode feedthrough bridge arranged to engage each cathode tab of each of the plurality of cathode assemblies; an anode feedthrough terminal coupled to the anode feedthrough bridge; and a cathode feedthrough terminal coupled to the cathode feedthrough bridge, wherein the plurality of anode assemblies and the plurality of cathode assemblies are alternately arranged and separated by the plurality of separators to form an electrode stack. A battery is also presented.

The invention discloses a unit body of metal air battery, which can solve the problem of the nonuniformity of velocity in the electrolyte, ensure the internal electrolyte uniformly distributed, the residue in a cavity of a battery can be carried away fully in the electrolyte circulation and reflow process, injecting electrolyte in the whole metal air batteries can be realized only by a set of water injection equipment, greatly save the cost of manpower and material resources. The upper center of a housing has an upper hole and the lower center of a housing has a bottom hole. There is a slope inclined toward the inside in a cavity. There is a lower through hole at the lowest end of a slope. A lower through hole is communicated with a bottom hole of a housing. Both sides of a bottom hole and an upper hole have a mating surface groove, in which a sealing ring of a housing is placed. An upper sealing ring is fixed on a sealing plug. A sealing plug, an alloy plate, and an upper copper electrode are connected by a screw of an alloy plate. A battery cover is covered with a sealing plug. The middle of a sealing plug is provided with a middle hole corresponding to an upper hole of a housing, in which there is a downward upper through hole. When a sealing plug is inserted into the upper part of a housing, a closed space is formed inside a housing. The electrolyte is circulated and discharged by an upper through hole and a lower through hole. An intelligent control system having this unit body of metal air battery is also provided.

A cell roll disclosed in the present application includes a sheet-type continuous body including a long sheet-type outer case body and a plurality of power generation elements. The sheet-type outer case body includes a resin film. The power generation elements are individually sealed in the sheet-type outer case body. The power generation elements are located side by side in the longitudinal direction of the sheet-type outer case body. Each of the power generation elements includes a positive electrode, a negative electrode, a separator, and an electrolyte. The sheet-type outer case body and the power generation elements form individual cells. The sheet-type continuous body is wound in a spiral fashion.

A zinc-air battery cell assembly comprising: a cathode can that includes: a planar base, and an elongated cathode sidewall that extends to a terminal cathode sidewall end, and an anode can that includes: a planar top end, and an elongated anode sidewall that extends to a terminal anode sidewall end, the anode can disposed nested within the cathode can with the elongated anode sidewall disposed parallel and adjacent to the elongated cathode sidewall. The zinc-air battery assembly further includes a cavity defined by the cathode can and the anode can disposed nested within the cathode can, and a grommet that provides a seal between the cathode can and the anode can while also keeping the anode can and the cathode can separate.

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.

The invention relates to a metal-air electrochemical cell comprising a frame (100) defining an electrolyte chamber having an anode side and a cathode side, wherein an air cathode assembly is provided in the cathode side, said air cathode assembly (20) comprising hydrophobic porous film having a first face and a second face, with current collector (21) and catalyst-containing active layer (26) provided on said first face, with the planar dimensions of the catalyst-containing active layer on said first face being smaller than that of said hydrophobic film and said current collector, such that the catalyst-containing active layer does not reach the edges of said hydrophobic film and said current collector, thereby creating a catalyst-free margin (27) on the hydrophobic film (31) and current collector which surrounds the catalyst-containing active layer, and wherein said first face of the hydrophobic film and said frame of the cell arm joined together by thermoplastic (101) applied onto the catalyst-free margin of the hydrophobic film. A method of assembling the metal/air cell is also described.

An energy storage device is provided which includes a supercapacitor first electrode, a supercapacitor second electrode, a first electrolyte, a metal electrode, and a separator. The supercapacitor first electrode, the supercapacitor second electrode, and the first electrolyte together form a supercapacitor. The metal electrode and the supercapacitor second electrode form an Ohmic contact. The separator is sandwiched between the metal electrode and the supercapacitor first electrode and configured to absorb moisture in a surrounding environment.

In some implementations, a metal air battery includes a body defined by a metal anode and a cathode, a first separator layer disposed on the metal anode, a second separator layer disposed on the cathode, and a plurality of beads disposed within the body. The beads may confine a liquid electrolyte, and may be configured to release the liquid electrolyte into interior portions of the battery in response to a compression of the cathode into the body of the battery.

A metal air battery system comprised of anode/cathode assembly with air gun plenums mounted on both sides of the anode. The anode is mounted in a battery cell chamber that holds the anode parallel with the cathode. The anode is able to move in and out of the battery cell chamber while the air gun plenums emit high pressure air for the purpose of wiping clean liquid electrolyte from the surface of each anode to provide for rapid shutdown of chemical reactions that produce hydrogen gas and electric current.