Abstract: An aqueous battery system includes an electrode assembly, a recombination device, and a controller. The recombination device has a catalyst that combines hydrogen and oxygen produced by the electrode assembly to form water and generate heat via exothermic reaction. The controller, responsive to a detected temperature or change in temperature associated with the recombination device due to the heat, changes power supplied to the electrode assembly.

Abstract: A method for manufacturing electrodes includes mixing a powder to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and outputting segments of the fibrillated dough. The method also includes processing the segments into a continuous plaque, drying the continuous plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into electrodes.

Abstract: A zinc-based battery includes a non-sintered separator system including a polymer separator and a coating on the polymer separator. The coating includes cellulose acetate that prevents metallic zinc penetration into the separator, and ceria bound with the cellulose acetate that chemically oxidizes metallic zinc to zinc oxide.

Abstract: A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.

Abstract: A zinc alkaline secondary battery includes a positive electrode, a negative electrode including a multi-valent oxide species, a separator system disposed between the electrodes, and an alkaline electrolyte in contact with the negative electrode. The alkaline electrolyte includes hexametaphosphate salt and zinc acetate. Ligands from the hexametaphosphate salt and zinc acetate are anchored to the negative electrode via chelation sites created by the multi-valent oxide species.

Abstract: A method for manufacturing zinc negative electrodes includes mixing a powder including zinc with polytetrafluoroethylene to form a homogenous blend, injecting a lubricant into the homogenous blend to form a dough, kneading the dough to form a fibrillated dough, and extruding the fibrillated dough through a die to form a ribbon. The method also includes calendering the ribbon to a target thickness to form a plaque, drying the plaque to form an active material sheet, laminating portions of the active material sheet to a current collector substrate such that the current collector substrate is sandwiched between the portions to form an electrode blank, and sectioning the electrode blank into zinc negative electrodes.

Abstract: A zinc alkaline secondary battery includes a positive electrode, a negative electrode including a multi-valent oxide species, a separator system disposed between the electrodes, and an alkaline electrolyte in contact with the negative electrode. The alkaline electrolyte includes hexametaphosphate salt and zinc acetate. Ligands from the hexametaphosphate salt and zinc acetate are anchored to the negative electrode via chelation sites created by the multi-valent oxide species.

Abstract: An electrode includes a current collector having metallic struts formed by freeze tape casting along a cast direction, and an electrochemically active material occupying portions of the void spaces. The struts define a percolated conductive network and void spaces through the percolated conductive network. The struts are directionally aligned and the void spaces are directionally ordered perpendicular to the cast direction.

Abstract: An electrode includes a current collector having metallic struts formed by freeze tape casting along a cast direction, and an electrochemically active material occupying portions of the void spaces. The struts define a percolated conductive network and void spaces through the percolated conductive network. The struts are directionally aligned and the void spaces are directionally ordered perpendicular to the cast direction.

Abstract: A zinc alkaline secondary battery includes a positive electrode, a negative electrode including a multi-valent oxide species, a separator system disposed between the electrodes, and an alkaline electrolyte in contact with the negative electrode. The alkaline electrolyte includes hexametaphosphate salt and zinc acetate. Ligands from the hexametaphosphate salt and zinc acetate are anchored to the negative electrode via chelation sites created by the multi-valent oxide species.

Abstract: A battery cell includes an electrode assembly having a negative electrode, positive electrode, and separator bathed in an alkaline electrolyte, a pouch encapsulating the electrode assembly, and first and second tabs respectively extending from the positive and negative electrodes through the pouch. The first tab has thereon a coating including acrylic paint and the second tab has thereon a coating including lacquer to discourage creepage of the alkaline electrolyte along the first and second tabs and out of the pouch.

Abstract: An electrolyte containing an aqueous solution having potassium hydroxide and potassium pyrophosphate dissolved therein. The electrolyte is used as electrolyte for nickel-zinc alkaline rechargeable batteries.

Abstract: A zinc active material containing a calcium-zincate constituent is formed external of a battery. The zinc active material is used as the active material for a zinc electrode used in the battery.

Abstract: A computer carrying case having a battery assembly integrated into a panel of the case. The battery assembly forms a structural component for the panel of the case into which it is integrated. In one form, the assembly is made of first and second nickel zinc battery modules. These modules are integrated into the top and bottom panels, respectively, of the case. Each module is of molded plastic form and includes a number of planar batteries each having insoluble roll bonded nickel electrodes.

Abstract: A zinc negative electrode comprising first and second zinc electrode assemblies separated by a porous hydrophobic element: Each of the zinc electrode assemblies includes a zinc active element and is devoid of any catalytic material for promoting oxygen gas recombination by the zinc active element.

Abstract: A zinc negative electrode comprising a zinc active material, Ba(OH).sub.2 or Sr(OH).sub.2 and a conductive matrix including a metallic oxide which is more electropositive than zinc. The zinc negative electrode is incorporated into a zinc secondary battery having an electrolyte whose electrolyte constituent is a low percentage of the electrolyte. The zinc negative electrode is split into electrode assemblies separated by a porous hydrophobic element.

Abstract: A zinc negative electrode comprising a zinc active material, Ca(OH).sub.2 and a conductive matrix including a metallic oxide which is more electropositive than zinc. The zinc negative electrode is incorporated into a zinc secondary battery having an electrolyte whose electrolyte constituent is a low percentage of the electrolyte. The zinc negative electrode is split into electrode assemblies separated by a porous hydrophobic element.

Abstract: A zinc secondary battery in which a plurality of battery cells are separated by bipolar plates which provide electrical conductivity between the cells and in which the battery cells and bipolar plates are arranged horizontally in a vertical stack.

Abstract: A nickel electrode comprising a conductive support and a layer on said support comprising a conductive diluent and an active material including nickel hydroxide containing boron.

Abstract: An assembly for recombining gases generated in electrochemical cells wherein a catalyst strip is enveloped within a hydrophobic, gas-porous film which, in turn, is encased between gas-porous, metallic layers. The sandwich construction of metallic layers and film is formed into a spiral with a tab for connection to the cell.