A cover comprises a lower cover attached to a housing containing a liquid in a plurality of cells and an upper cover matable with the lower cover to form a labyrinth between the lower cover and the upper cover and a plurality of cover sides. The labyrinth has a plurality of cell openings each communicating with one of the cells of the housing, a plurality of mixing areas, and a plurality of labyrinth cell passageways each extending from one of the cell openings to one of the mixing areas. A portion of each of the labyrinth cell passageways extends above a liquid level of the liquid when tipped ninety degrees in all directions onto the cover sides from an upright orientation.

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 cover is disclosed. The battery cover has a lower battery cover and an upper battery cover. The upper battery cover is matable with the lower battery cover to form a labyrinth and a plurality of battery cover sides. The labyrinth has a plurality of labyrinth cell passageways between a plurality of cell openings and a plurality of mixing areas, and the labyrinth cell passageways extend above an acid level when tipped all directions onto the battery cover sides from an upright orientation.

A case system for lead batteries is provided. The case system has an essentially six sided cuboid shape with two pairs of parallel sidewalls perpendicular to each other. Each pair of sidewalls defines two opposite surfaces of the essentially cuboid shape and further defines an interior volume inside the case system. The case system includes a further pair of parallel sidewalls, each of them perpendicular to the sidewalls above and each with a surface area larger than that of any one of the surface areas of the above sidewalls. One of the sidewalls is arranged as a separate cover wall for sealing the case system. At least one division plane is further included in the case system. The division plane divides the interior volume, such as to form a plurality of compartments, each for storing an electrical cell. All division planes are perpendicular to the cover wall. Further, an electrical cell, a lead battery and a lead battery layout including the above are shown.

A lead-acid battery including: a power generating element, a container accommodating the power generating element a lid member having a rib joined to an outer wall of the container and sealing an opening of the container; an outer peripheral wall provided at the lid member, located to be spaced apart from the rib, and surrounding the outer wall of the container; and a spacer located between the outer wall of the container and the outer peripheral wall of the lid member.

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with the battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

Intelligent lead-acid battery system capable of monitoring a parameter (e.g., voltage, temperature) of one or more battery cells of a lead-acid battery. In one implementation, the battery system includes a housing having a cells compartment, a battery monitoring system (BMS) compartment, and a wall disposed between the cells compartment and the BMS compartment. A first post and a second post are associated with the battery cell. The first post and the second post protrude through the wall between the cells compartment to the BMS compartment. A voltage sensor electrically couples to the first post and the second post to monitor the voltage of the battery cell. A temperature sensor can couple to the first or second or both posts. The intelligent AGM battery system can predict the battery module's state of health, state of charge, module status, power capability, life expectancy, etc.

In a lead-acid storage battery including a container housing elements formed by alternately layering positive electrode plates and negative electrode plates with deformable separators interposed therebetween, the container includes a narrow portion having a small inside dimension in a width direction intersecting a layered direction of the elements, widths of the respective plates are smaller than the inside dimension in the width direction of the narrow portion of the container, and widths of the separators are greater than or equal to the inside dimension of the narrow portion of the container.

A lead acid battery has a housing having a plurality of adjacently positioned battery plate receiving compartments. A cell of battery plates is positioned in each battery plate receiving compartment. Each cell has a plurality of positive plates, each having a positive lug, and a plurality of negative plates interleaved with the positive plates, each having a negative lug. A mold positioned on a top edge of each group of battery plates, and has two strap molding wells, each having a lead receiving space, a well base, and a plurality of lug receiving openings positioned in the well base. The positive lugs of the cell extend through the lug receiving openings in one of the strap molding wells, and the negative lugs of the cell extend through the lug receiving openings in the other strap molding well.

A battery includes a housing, a plurality of cells disposed inside the housing, and a set of strap structures. Each cell comprises a plurality of positive electrode plates and a plurality of negative electrode plates, and each respective electrode plate has a respective tip. The set of strap structures includes one or more of a first strap structure, which includes a positive strap line, a negative strap line, and at least two bridging lines disposed between and connected with the positive strap line and the negative strap line. The negative strap line is connected with respective tips of a plurality of negative electrode plates in a cell. The positive strap line is connected with respective tips of a plurality of positive electrode plates in a different cell. The first strap structure, the set of strap structure, and a method of making the battery are also provided.