A bipolar lead-acid battery is described in which the electrolyte is less likely to infiltrate the interface between a positive electrode lead layer and an adhesive layer so that deterioration in battery performance is less likely to occur. A positive electrode of a bipolar electrode of the battery includes a positive electrode lead layer disposed on one surface of a substrate. An adhesive layer is disposed between and bonds the one surface and the positive electrode lead layer. The substrate is formed of a thermoplastic resin, and the adhesive layer is a cured product of a reaction-curing type adhesive that is cured by reaction between a main agent containing an epoxy resin and a curing agent containing an amine compound. Even when immersed in sulfuric acid with a concentration of 38% by mass at a temperature of 60° C. for four weeks, the sulfuric acid does not infiltrate the interface.

A bipolar lead-acid battery is described in which the electrolyte is less likely to infiltrate the interface between a positive electrode lead layer and an adhesive layer so that deterioration in battery performance is less likely to occur. A positive electrode of a bipolar electrode of the battery includes a positive electrode lead layer disposed on one surface of a substrate. An adhesive layer is disposed between and bonds the one surface and the positive electrode lead layer. The substrate is formed of a thermoplastic resin, and the adhesive layer is a cured product of a reaction-curing type adhesive that is cured by reaction between a main agent containing an epoxy resin and a curing agent containing an amine compound. Even when immersed in sulfuric acid with a concentration of 38% by mass at a temperature of 60° C. for four weeks, the sulfuric acid does not infiltrate the interface.

A bipolar storage battery is described in which, even when growth occurs in a positive electrode due to corrosion caused by sulfuric acid contained in an electrolytic solution, the electrolytic solution has difficulty penetrating an interface between the positive electrode and an adhesive and battery performance is hard to decrease. The bipolar storage battery includes a bipolar electrode including a positive electrode, a negative electrode, and a bipolar plate in which the positive electrode is provided on one surface and the negative electrode is provided on the other surface. The bipolar electrode includes a covering member configured to cover a peripheral part of an opposite surface of the positive electrode in close contact with the peripheral part, the opposite surface being opposite to a surface, of the positive electrode, bonded to the bipolar plate.

A bipolar storage battery is described in which, even when growth occurs in a positive electrode due to corrosion caused by sulfuric acid contained in an electrolytic solution, the electrolytic solution has difficulty penetrating an interface between the positive electrode and an adhesive and battery performance is hard to decrease. The bipolar storage battery includes a bipolar electrode including a positive electrode, a negative electrode, and a bipolar plate in which the positive electrode is provided on one surface and the negative electrode is provided on the other surface. The bipolar electrode includes a covering member configured to cover a peripheral part of an opposite surface of the positive electrode in close contact with the peripheral part, the opposite surface being opposite to a surface, of the positive electrode, bonded to the bipolar plate.

A bipolar battery that can achieve both a hermetic seal and mechanical strength and increases energy density is described. The bipolar lead acid battery includes an outer wall integrally projected along a peripheral edge on a facing surface of one frame-plate out of a pair of the frame-plates facing each other and a joining wall integrally projected on a facing surface of the other frame-plate out of the pair of the frame-plates facing each other. The joining wall is positioned inwardly from the outer wall of the one frame-plate and surrounds a peripheral edge of a cell member. The joining wall is joined to the facing surface of the one frame-plate by a joining material.

A bipolar battery that can achieve both a hermetic seal and mechanical strength and increases energy density is described. The bipolar lead acid battery includes an outer wall integrally projected along a peripheral edge on a facing surface of one frame-plate out of a pair of the frame-plates facing each other and a joining wall integrally projected on a facing surface of the other frame-plate out of the pair of the frame-plates facing each other. The joining wall is positioned inwardly from the outer wall of the one frame-plate and surrounds a peripheral edge of a cell member. The joining wall is joined to the facing surface of the one frame-plate by a joining material.

Provided is a bipolar lead-acid battery relating to the technical filed of battery. The bipolar lead-acid battery includes a housing with a battery cavity inside and a plurality of single cells provided in the battery cavity, each of the single cells has an inner cavity for electrolyte injection, and the inner cavity of each single cell is independent of one another, and the housing has a plurality of air-distributing chambers communicating with the inner cavity of the each of the single cells in one-to-one correspondence above the battery cavity, wherein the housing further has a common pressure chamber, the air-distributing chambers communicate with the common pressure chamber through vents, respectively. The bipolar lead-acid battery has the advantages that it can be successfully manufactured and can be used normally, and solves the problems of short service life and unsuccessful manufacture of the existing battery.

Provided is a bipolar lead-acid battery relating to the technical filed of battery. The bipolar lead-acid battery includes a housing with a battery cavity inside and a plurality of single cells provided in the battery cavity, each of the single cells has an inner cavity for electrolyte injection, and the inner cavity of each single cell is independent of one another, and the housing has a plurality of air-distributing chambers communicating with the inner cavity of the each of the single cells in one-to-one correspondence above the battery cavity, wherein the housing further has a common pressure chamber, the air-distributing chambers communicate with the common pressure chamber through vents, respectively. The bipolar lead-acid battery has the advantages that it can be successfully manufactured and can be used normally, and solves the problems of short service life and unsuccessful manufacture of the existing battery.

A static battery with a non-conductive elastomeric or thermoplastic housing. The, battery housing is adapted to receive at least one anode assembly, at least one cathode assembly, and at least one bipolar electrode assembly. At least the bipolar electrode assembly is formed from a conductive plastic resin that is formed as a CPE sheet. A carbon material is affixed to the CPE sheet to form the bipolar electrode. The at least one cathode assembly, the at least one anode assembly and the at least one bipolar electrode assembly are received into the battery box such that a liquid, and/or gas seal is formed, between electrode assemblies. The battery housing has slots into which the electrode assemblies are received. When the electrode assemblies are received into the housing, cells are formed by the cooperation of the electrode assemblies and the battery housing. The cells are then filled with electrolyte such as zinc bromide and a lid is placed on the battery box. Once sealed the battery box is a liquid tight container for the battery.

A lead alloy is described that is capable of manufacturing a positive electrode for a lead storage battery less likely to cause corrosion penetrating through a lead layer for the positive electrode in the thickness direction. The lead alloy contains 0.4% by mass or more and 2% by mass less of tin and 0.004% by mass or less of bismuth, with the balance being lead and inevitable impurities. When image analysis of a crystal orientation distribution map created by analyzing the surface of the lead alloy by an electron backscatter diffraction method is performed, intersection points of misorientation boundaries between crystal grains with a crystal misorientation of 5° or more and a straight line extending in one specific direction are extracted. The distances between two adjacent intersection points among the extracted intersection points are measured, and the average value of the distances is 50 μm or less.