Structure and characteristics of valve-regulated sealed lead-acid batteries

VRLA-Valve Regulated Lead Acid Battery (VRLA-Valve Regulated Lead Acid Battery) is composed of positive and negative plates, ultra-fine glass fiber separators, electrolyte, safety valve, conductive terminals, cover, shell, etc. The positive and negative plates are areas of electrochemical reaction, which are formed by applying lead paste on the grid after curing and forming. The effective component of the positive plate is lead dioxide, and the effective component of the negative plate is spongy lead. The separator is composed of ultra-fine glass fiber with porosity. The safety valve is a kind of exhaust device that releases excess gas to maintain the air-tightness and liquid-tightness of the battery, and keep the internal pressure of the battery within the best safety range. The battery terminal is connected with the load to conduct current, and the battery tank and the shell are made of flame-retardant materials.　　 During the charging process of the battery, the negative electrode reaction is similar to the reduction reaction, so the negative electrode is also called the cathode. The negative electrode active material of the battery battery has a surplus relative to the positive electrode, and the ultra-fine separator has good air permeability and can absorb all the electrolyte, so that the electrolyte has no fluidity inside the battery. The oxygen in the battery is absorbed by the cathode in a circulating manner, which is called the principle of cathode adsorption. Because the battery has a unique internal design structure, it ensures the effective establishment of the internal oxygen cycle of the battery. It has been improved on the basis of the traditional hydrogen elimination and acid-proof explosion-proof lead-acid battery. It has become a new type of replacement product and has been widely used. Applied in the communications industry.
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