摘要:
A lead alloy for use in lead-acid battery grids consisting essentially of between approximately 0.05 and 0.07 percent calcium, between approximately 0.9 and 1.3 percent tin, between approximately 0.006 and 0.010 percent silver, between approximately 0.010 and 0.017 weight percent barium, and between approximately 0.015 and 0.025 percent aluminum, with the balance being lead.
摘要:
A battery positive grid is continuously cast of lead and thereafter cold worked to reduce its cross sectional thickness to change the microstructure of the lead and provide enhanced corrosion resistance and other properties needed for positive grids. The as cast thickness is reduced by not more than ½ or 2 to 1, to produce a positive grid with a lead weight of 0.5 to 2.1 grams per square inch of the area of the plan of the cold worked grid which improves the life of a battery in which it is used. A battery negative grid is continuously cast of lead and thereafter cold worked to reduce its cross sectional thickness 1.2:1 to less then 1.5:1 to increase the ultimate tensile strength needed for a lighter negative grid with a lead weight of 0.3 to 0.9 of a gram per square inch of the area of its plan.
摘要:
A method and apparatus for producing lead storage batteries are provided. sentially grid-shaped lead electrodes are produced and are provided with a pasty, active mass. Immediately thereafter separator material is provided on both sides of the electrodes. The electrodes are stacked, electrically connected, and placed in a housing to form a cell unit, which is subsequently stored to effect curing of the pasty, active mass.
摘要:
A lead-acid battery according to the invention contains an electrode grid structure that comprises dispersoid-containing lead having relatively high strength and good corrosion resistance. The dispersoid particles exemplarily are selected from the oxides, nitrides and carbides that are substantially insoluble in lead and in sulfuric acid of concentration suitable for use in a lead-acid battery. Significantly, the dispersoid-containing lead has average grain size of at least 20 .mu.m. In consequence of the relatively large grain size, the total length of grain boundaries exposed to electrolyte is relatively small, and corrosion resistance is improved. Exemplary techniques for forming the dispersoid-containing lead are disclosed.
摘要:
A molded plastic component for a bipolar battery comprises a metal substrate having a periphery which is embedded in the plastic and includes at least one surface suitable for accepting an active material paste, the plastic frame comprising a first set of opposed sides having a first thickness which defines the thickness of the active material paste which can be accepted and a second set having a thickness greater than that of the first set which provides a dam for the active material being applied, thereby achieving the ability to automatically paste such molded components on a commercial scale.
摘要:
A cast-on strap for use in connecting current collecting lugs in battery systems is disclosed. In the most preferred embodiment, the invention includes a caston strap formed of electrically conductive material, such as lead, having a first elongate portion in electrical contact with a line of spaced apart battery plate lugs. The connector strap includes a second portion lying in a plane which is perpendicular to that of the elongate portion so that the latter is laterally displaced. The preferred cast-on strap also includes an angularly extending portion between the elongate portion and the second portion. Increased current transfer efficiency is achieved using the strap of the present invention.
摘要:
We have discovered that the introduction of small particulate matter into the area between the electrolyte and the inner surface of the battery cover can dramatically reduce water loss, if the material possess the following properties:The material should have a closed cell, which is not a solid material in a sense that it is a plurality of hollow structures linked together.
摘要:
A method for the manufacture of lead-acid batteries and associated apparatus and a lead-acid battery design resulting therefrom is disclosed. The method involves providing a battery grid and pasting the grid with a battery paste such that a profiled and tapered battery plate is formed. This battery plate is wrapped onto a coil and cured in curing apparatus. A battery element is formed using coils of the finished plate stock, separator material, and winged end plate. After this, several battery elements are then placed into a battery container.
摘要:
A method for the manufacture of lead-acid batteries and associated apparatus and a lead-acid battery design resulting therefrom is disclosed. The method involves providing a battery grid and pasting the grid with a battery paste such that a profiled and tapered battery plate is formed. This battery plate is wrapped onto a coil and cured in curing apparatus. A battery element is formed using coils of the finished plate stock, separator material, and winged end plate. After this, several battery elements are then placed into a battery container.
摘要:
A reliable positive plate for deep cycle lead-acid batteries is provided by dispersing about 2 percent by volume of fine, short, lead-coated reinforcement fibers such as fiberglass in the positive active paste before being applied to the grid of a battery plate and cured. The fibers improve the structural integrity of the plate and also provide electrical paths in a discharged plate. This results in greater utilization of the lead dioxide active material by preventing charged portions of the plate from becoming electrically isolated.