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 rechargeable battery cell a casing and first and second electrode materials separately positioned in the casing. A mechanical impulse element is positioned to mechanically move and dislodge gas bubbles from at least one of the first and second electrode materials in response to activation. In some embodiments the mechanical impulse element can include a vibratory piezoelectric element. In other embodiments, a gas vent in the battery cell can be used to release dislodged gas bubbles.

Provided is an aqueous battery configured to use hydroxide ions (OH.sup.−) as carrier ions. The aqueous battery is an aqueous battery comprising a cathode layer, an anode layer and an aqueous liquid electrolyte, wherein the cathode layer contains, as a cathode active material, a graphite having a rhombohedral crystal structure; wherein the anode layer contains, as an anode active material, at least one selected from the group consisting of an elemental Zn, an elemental Cd, an elemental Fe, a Zn alloy, a Cd alloy, an Fe alloy, ZnO, Cd(OH).sub.2, Fe(OH).sub.2 and a hydrogen storage alloy; and wherein, as an electrolyte, at least one selected from the group consisting of KOH and NaOH is dissolved in the aqueous liquid electrolyte.

Provided are a laminated battery capable of suppressing a level drop of an electrolyte caused by expansion of a negative electrode active material during discharge, and a manufacturing method for the laminated battery.

An enclosure member of the laminated battery is constituted by affixing a first resin film and a second resin film to each other, and a separator is arranged inside the enclosure member between a positive electrode (for example, a first electrode) and a negative electrode (for example, a second electrode). A peripheral edge portion of the separator is fixed to a peripheral edge portion of the enclosure member (the first resin film or the second resin film).

A solid state high voltage battery includes a cathode; an anode; a catholyte solution in contact with the cathode; an anolyte solution in contact with the anode, and a separator disposed between the cathode and the anode. At least one of the catholyte or the anolyte is gelled, and at least one of the catholyte or the anolyte comprises an organic electrolyte, an ionic liquid electrolyte, or water in salt electrolyte.

This invention relates to a zinc powder electrode formed on a MXene framework. The zinc powder anode formed on an MXene framework, referred to as an MXene@Zn electrode can act as an anode and/or cathode for an electrochemical cell or battery. As such, the present invention further relates to an electrode comprising MXene@Zn and a battery comprising such an electrode.

Provided is encapsulated electroactive materials for use in rechargeable aqueous zinc cells, batteries, systems, and associated methods. A core-shell composite particle includes a core of electrochemically active material, and a shell of a polyelectrolyte matrix, substantially insoluble in water, yet allowing the transport of zinc cations to and from the electrochemically active core. A method for preparing the core-shell composite electrochemically active particle includes mechanically dispersing the electrochemically active material particles in association with the polyelectrolyte solution, insolubilizing the polyelectrolyte in the presence of the dispersed electrochemically active material particles, washing the encapsulated particles particle with water, and drying the washed encapsulated particles

An electrochemical cell comprises a can comprising a cylindrical side wall extending from a closed end wall. The closed end wall comprises a protrusion. The protrusion has a protrusion cavity therein. A pre-formed pellet of a first electrode material is disposed in the protrusion cavity. The electrochemical cell may further comprise a separator defining an inner cavity and separating the inner cavity from an outer cavity. The outer cavity is defined by the can and the separator. The electrochemical cell may further comprise a first electrode material disposed in the outer cavity; and a second electrode material disposed in the inner cavity.

The present technology provides a battery that includes an air cathode, an anode, an aqueous electrolyte that includes an amphoteric surfactant, and a housing that includes one or more air access ports defining a total area of void space (“vent area”), where (1) the battery is a size 13 metal-air battery and the total vent area defined by all of the air access ports is from about 0.050 mm.sup.2 to about 0.115 mm.sup.2; or (2) the battery is a size 312 metal-air battery and the total vent area defined by all of the air access ports is from about 0.03 mm.sup.2 to about 0.08 mm.sup.2.

A nozzle is provided for providing anode material into an electrochemical cell and method of using the same. The nozzle comprises a hollow tubular body extending between an open upper end and an open lower end; a lower deflector spaced apart from the open lower end of the hollow tubular body and forming an annular opening between a deflection surface of the lower deflector and the open lower end of the hollow tubular body; and a support rod connecting the lower deflector with the hollow tubular body, wherein the support rod is suspended within an interior of the hollow tubular body by one or more support trusses.