An alkaline battery, and a component cathode including a solid ionically conducting polymer material.

Galvanic metal-water cells and methods of manufacturing positive electrodes to be used in said galvanic metal-water cells. The galvanic metal-water cells in accordance with various embodiments include a cathode that includes a layer comprising nickel-molybdenum deposited thereon. The nickel-molybdenum coated cathodes exhibit favorable hydrogen evolution reaction overpotential compared with existing devices. In these galvanic metal-water cells, the metal is oxidized and water is reduced.

Galvanic metal-water cells and methods of manufacturing positive electrodes to be used in said galvanic metal-water cells. The galvanic metal-water cells in accordance with various embodiments include a cathode that includes a layer comprising nickel-molybdenum deposited thereon. The nickel-molybdenum coated cathodes exhibit favorable hydrogen evolution reaction overpotential compared with existing devices. In these galvanic metal-water cells, the metal is oxidized and water is reduced.

To counteract the potentially destructive effects of temperature increases in primary batteries during short circuit conditions, a current interrupt may be positioned within an anode conductive path. The current interrupt may comprise a thermoplastic substrate having a low glass transition temperature, and having a conductive coating thereon to form a portion of the anode conductive path. During a short circuit, the temperature within the battery increases above the glass transition temperature of the thermoplastic substrate, thereby causing the current interrupt to deform, thereby degrading the portion of the anode conductive path defined by the current interrupt, decreasing the amount of current flowing through the anode conductive path, and effectively limiting the temperature increase within the battery interior.

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.

The disclosure relates to a self-charging device for energy harvesting and storage. The self-charging device for energy harvesting and storage includes a first electrode, a second electrode spaced from the first electrode, a solid electrolyte bridging the first electrode and the second electrode, and a water absorbing structure. The water absorbing structure is located on the second electrode, absorbs water from external environment and transmits the absorbed water to the solid electrolyte.

The present invention pertains to a secondary battery comprising at least one separator, said separator comprising at least one fluorinated polymer [polymer (F)], said polymer (F) comprising recurring units derived from vinylidene fluoride (VDF), hexafluoropropylene (HFP) and at least one (meth)acrylic monomer (MA) having formula (I) here below, wherein: —R.sub.1, R.sub.2 and R.sub.3, equal to or different from each other, are independently selected from a hydrogen atom and a C.sub.1-C.sub.3 hydrocarbon group, and —R.sub.OH is a C.sub.1-C.sub.5 hydrocarbon moiety comprising at least one hydroxyl group. ##STR00001##

The present invention pertains to a secondary battery comprising at least one separator, said separator comprising at least one fluorinated polymer [polymer (F)], said polymer (F) comprising recurring units derived from vinylidene fluoride (VDF), hexafluoropropylene (HFP) and at least one (meth)acrylic monomer (MA) having formula (I) here below, wherein: —R.sub.1, R.sub.2 and R.sub.3, equal to or different from each other, are independently selected from a hydrogen atom and a C.sub.1-C.sub.3 hydrocarbon group, and —R.sub.OH is a C.sub.1-C.sub.5 hydrocarbon moiety comprising at least one hydroxyl group. ##STR00001##

The present invention relates to a station for cutting cylindrical type batteries, wherein each battery is cut along a diametrical plane following the impact of the battery with a blade which identifies a cutting plane aligned with the central axis of the line to be cut. The present invention also relates to a method for separating and recovering the components from an cylindrical type battery, which includes an initial step of cutting which can be implemented by means of a cutting station according to the present invention.

The present disclosure aims, in a battery, to suppress intrusion of foreign materials generated by sputtering in the battery while a decrease in battery capacity is suppressed. A battery according to one embodiment of the present disclosure includes an exterior package can (51) which receives an electrode body, the electrode body includes a lead connected to one of a positive electrode and a negative electrode, the lead has a U-shaped portion (18) having a cross-sectional U shape formed by folding, and at least a part of a portion of the U-shaped portion which is in contact with the exterior package can (51) and the exterior package can (51) are welded to each other with a welding portion formed by energy beams radiated from the outside of the exterior package can (51).