Three major structural characteristics of lean-liquid valve-controlled batteries

by:Power Kingdom     2021-04-24
(1) The electrolyte of the lean-liquid valve-controlled battery is all absorbed by the diaphragm and the small holes of the electrode plate, so that there is no flowing electrolyte inside the battery, and about 2% of the space (ie, large holes) in the diaphragm is used as oxygen from the positive electrode. The channel that diffuses to the negative electrode enables the battery to immediately establish oxygen circulation at the beginning of use, so the hydrogen-free oxygen gas escapes through the exhaust valve. The gel battery is similar to the general flooded battery in the initial stage of use. There is no oxygen circulation, and hydrogen and oxygen gas escape. At this time, ventilation measures must be considered. (2) The lean-liquid valve-regulated battery uses ultra-fine glass fiber diaphragm with a large pore size, and the diaphragm is assembled under pressure, so the ion conduction path is short, the resistance is small, and the battery internal resistance becomes low. When the colloidal battery is mixed with silica sol and sulfuric acid, the conductivity of the electrolyte becomes poor and the internal resistance increases, so the lean-liquid valve-controlled battery discharges with a large current. The characteristics are better than gel batteries. . Some battery factories use composite AGM separators on the basis of lean-liquid valve-controlled batteries. A small amount of PE hydrophobic fiber is added to the separator material, and the electrolyte can be higher than the top of the electrode plate. After acid is added to the battery, a continuous gas film is formed on the surface of the PE hydrophobic fiber as a diffusion channel for oxygen, which provides good conditions for the recombination reaction of oxygen, thereby prolonging the service life of the battery. . (3) The electrolyte uniformity and diffusibility of lean-liquid batteries are better than those of colloidal batteries. . The requirements for the use of lean-liquid valve-controlled batteries are: the manufacturing of lean-liquid batteries requires maintaining the consistency of the monomer pole group and the reliability of the acid filling density. Because the battery life is closely related to the ambient temperature, the battery room is required to have better ventilation facilities. At the same time, lean-liquid valve-controlled batteries require high charging quality, and should be equipped with a charging device with perfect functions and excellent performance.
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