A battery module positioning structure and a battery module are provided. The battery module positioning structure includes a substrate and a first electrode plate. The substrate includes a first through hole and a third through hole formed therein. The first through hole and the third through hole have a first clearance therebetween, and the substrate has a first surface and a second surface. The first electrode plate is secured onto the substrate. The first electrode plate includes a first terminal, a first body and a third terminal. The first terminal is connected to one end of the first body, and another end of the first body is connected to the third terminal. The first terminal is disposed on the first surface, and the first body is disposed on the second surface. The electrode plate can be easily engaged onto the substrate by way of the plurality of through holes, thereby readily assembling the battery module.

A rechargeable battery assembly for a vehicle has a housing and at least one metal-air rechargeable battery arranged in the housing. A filter device is arranged in the housing and conditions the inlet air of the at least one metal-air rechargeable battery such that the inlet air exhibits a predetermined air humidity.

A flow deflecting device is provided that deflects the inlet air in the housing such that the filter device can be regenerated by waste heat of the at least one metal-air rechargeable battery.

Provided is a zinc-air secondary battery including an air electrode; a negative electrode containing zinc, a zinc alloy, and/or a zinc compound; an aqueous electrolytic solution in which the negative electrode is immersed; a container having an opening and accommodating the negative electrode and the electrolytic solution; and a separator disposed to cover the opening and having hydroxide ion conductivity, water impermeability, and gas impermeability, the separator being in contact with the electrolytic solution and defining a hermetic space with the container such that the air electrode is separated from the electrolytic solution by the separator through which hydroxide ions pass. The hermetic space has an extra space having a volume that meets a variation in amount of water in association with reaction at the negative electrode during charge and discharge of the battery. The present invention provides a highly reliable zinc-air secondary battery.

An exemplary method of securing battery cells of a battery pack includes limiting upward movement of a separator by blocking movement of a projection with a structure. The projection extends from a spacer section of the separator and has a hook shape with an upwardly extending portion outside the structure. The method further includes limiting upward movement of a battery cell using the separator. Another exemplary method of securing battery cells of a battery pack includes limiting movement of a separator in a direction by blocking movement of a projection in the direction. The projection extends from a spacer section of the separator. The projection has a hook shape with a portion extending in the direction. The spacer section and the portion are on opposite sides of a structure. The method further includes limiting movement of a battery cell in the direction using the separator.

Provided is a separator roll in which deformation is reduced and an external quality is improved. In the separator roll, a separator is wound around a core, and an absolute value of radial stress σ.sub.r applied to the core is not more than a critical stress σ.sub.cr. The critical stress σ.sub.cr is a value obtained by multiplying A by B, where: A is an absolute value, of radial stress σ.sub.r applied to the core, as observed in a case where a maximum value of Von Mises stress σ.sub.m in the core is equal to a yield stress σ.sub.y of a material of the core; and B is a safety factor of 0.5.

An example battery pack separator includes a spacer section and a vent section. The spacer section has a portion that is operative to fit between a first battery cell and a second battery cell along an axis. The portion has a perimeter. A vent section has an aperture that extends away from the axis outside the perimeter.

Disclosed are a lithium-iron(II) disulfide battery and a process for preparing the same. The batter includes a shell, a cap, electrolyte and a cell. The shell is connected with the cap to form a closed cavity in which the electrolyte and cell are accommodated; the cell includes a positive electrode ring, a separator, a spacer, a negative electrode lithium sheet, a current collector grid and a steel strip. The negative electrode lithium sheet is set in the positive electrode ring; the negative electrode lithium sheet is separated from the positive electrode ring by the separator; one side of the current collector grid is connected with the negative electrode lithium sheet, and the other side is connected with the cap via the steel strip; the spacer is set between the positive electrode ring and the cap.

A lead-acid battery includes an electrode plate assembly, a battery case, a positive electrode strap, a negative electrode strap, a positive electrode post, a negative electrode post, a cover, and an electrolyte solution. A negative electrode bushing provided in the cover and the negative electrode post together constitute a negative electrode terminal. A maximum value of a gap between an outer circumferential surface of the negative electrode post and an inner circumferential surface of the negative electrode bushing in the negative electrode terminal is 0.5 mm or more and 2.5 mm or less. A rib is provided in a lower part of the negative electrode bushing, and a minimum value of a protrusion height of the rib is 1.5 mm or more and 4.0 mm or less. A distance between a surface of the electrolyte solution and a lowermost portion of the negative electrode bushing is 15 mm or less.

A battery module includes a plurality of battery cells arranged in one direction, barriers interposed among the plurality of battery cells, a pair of first and second end plates arranged outside the battery cells, and coupling members that couple the first and second end plates, wherein at least one of the barriers includes at least one protrusion that provides a step difference between the protrusion and a surface of the barrier.

Disclosed herein are exemplary embodiments of improved separators for lead acid batteries, improved lead acid batteries incorporating the improved separators, and vehicles, devices, or systems incorporating the same. A lead acid battery separator is provided with a porous membrane with a plurality of ribs extending from a surface thereon. The plurality of ribs preferably includes both positive ribs and negative ribs having similar heights. The ribs are provided with a plurality of discontinuous peaks arranged such as to provide resilient support for the porous membrane in order to resist forces exerted by active material swelling and thus mitigate the effects of acid starvation associated with such swelling, and increasing the acid availability at the electrodes. A lead acid battery is further provided that incorporates the provided separator. Such a lead acid battery may be a flooded lead acid battery, an enhanced flooded lead acid battery, a gel battery, an AGM battery, and may be provided as operating in a partial state of charge. Systems incorporating such a lead acid battery are also provided, such as a vehicle or any other energy storage system, such as solar or wind energy collection. Other exemplary embodiments are provided such as to have any one or more of the following: increased or improved acid availability, reduced or mitigated acid starvation, and other improvements.