SEALED VALVE-ADJUSTABLE LEAD ACID (VRLA) ACCUMULATOR BATTERY

摘要

A sealed valve-regulated lead-acid VRLA-battery consisting of batteries whose current-forming elements are alternating positive electrodes with an active mass of lead dioxide (PbO2) and negative electrodes with an active mass of sponge lead (Pb), separated by fiberglass separators with a fiber diameter of 5 -25 μm, and a gel-like electrolyte based on dilute sulfuric acid, thickened with finely divided silica in an amount of 3-7 wt.%, Electrode conductors made of antimony of a screw alloy, the capacity of negative electrodes is greater than the capacity of positive electrodes, the battery has at least one safety valve for removing excess gases, characterized in that the capacity of negative electrodes is 10-35% higher than the capacity of positive electrodes, a barium sulfate expander is introduced into the negative active mass ( BaSO4) in an amount of 0.30-0.66 wt.% From the active mass, borosilicate glass fiber in an amount of 0.2-2.1 wt.% From the active mass is introduced into the positive active mass, while the diameter of the fibers is It is 0.5–10 μm, and the fiber length is 2.5–1000 μm.