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What is a valve-controlled lead-acid battery?

    Valve-controlled lead-acid batteries, also known as VRLA (Valve Regulated Lead Acid) batteries, are improved on the basis of common acid-proof flameproof lead-acid batteries in terms of materials, structure, and technology. This battery was born in the 1970s, and soon after in some developed countries formed a considerable scale of production, industrialization and a large number of market. Because of its many advantages, it has been welcomed by the majority of users, especially in the need to install battery supporting equipment together (or a workshop), such as UPS, telecommunications equipment, mobile communication equipment, computers, motorcycles, etc. The remarkable feature of the valve-controlled lead-acid battery is that it does not need to add acid and water maintenance during use, which is mainly due to its special structure and working principle. During the battery charging process, oxygen begins to precipitate when the positive electrode is charged to 70%, and hydrogen begins to precipitate when the negative electrode is charged to 90%. However, valve-controlled lead-acid batteries can reuse oxygen inside the cell while inhibiting hydrogen evolution. This feature overcomes the important shortcomings of traditional lead-acid batteries, making the battery lose very little water, so that there is no need to add acid and water maintenance during use.

    In addition, the valve-controlled lead-acid battery adopts a sealed structure, which does not leak acid or discharge acid mist, thus avoiding the problem of corroding equipment and polluting the environment. The battery cover is provided with a one-way exhaust valve (also called a safety valve), when the amount of gas inside the battery exceeds a certain pressure value, the exhaust valve will automatically open, discharge the gas, and then automatically close to prevent air from entering the battery. These characteristics of valve-controlled lead-acid batteries make them ideal for a wide range of applications. It not only simplifies the battery maintenance process, reduces the cost of use, but also improves the safety and reliability of the battery. With the continuous progress of technology and the continuous expansion of the market, the application prospect of valve-controlled lead-acid batteries will be broader.

    VRLA Battery (valve-controlled lead-acid battery) is a commonly used type of battery, which is an improved form of lead-acid battery. This battery uses lead and lead oxide as the main raw materials, and utilizes a unique valve control technology to ensure the stability and safety of the battery by controlling the pressure and gas inside the battery during charging and discharging.


a, the structure of the valve control type lead acid battery

& have spent       The valve-controlled lead-acid battery is mainly composed of positive and negative plate, electrolyte, separator, battery housing and safety valve. Among them, the positive and negative plate is the core part of the battery, which is composed of lead and lead oxide; The electrolyte is the energy source of the battery, which is sulfuric acid aqueous solution. The separator is used to isolate the positive and negative plates to prevent short circuit; The battery housing is used to protect the internal structure; The safety valve is used to control the pressure and gas emission inside the battery.

second, the advantages of valve control type lead acid battery

& have spent       1. High sealing: valve-controlled lead-acid battery adopts high sealing technology, so that the battery will not leak during use, improving the safety of the battery.

        2. Long life: Due to the unique valve control technology, the battery can better control the internal pressure and gas emissions during the charge and discharge process, thus extending the service life of the battery.

        3. Easy maintenance: valve-controlled lead-acid battery in the normal use of the process, basically do not need to carry out additional maintenance work, just check the status of the battery regularly.

        4. Wide application: Due to the above advantages, valve-controlled lead-acid batteries are widely used in communication, power, transportation, military and other fields.

3, the application of valve control type lead acid battery

& have spent       Valve-controlled lead-acid batteries are widely used in various fields because of their high reliability, long life and good charge-discharge performance. In the field of communication, valve-controlled lead-acid batteries provide stable power supply for base stations, switches and other equipment; In the power sector, it is used in uninterruptible power supply (UPS) systems to support the normal operation of power equipment; In the field of transportation, it is used in electric vehicles, trains and other transportation power systems; In the military field, it is used as a power supply for various military equipment.

four, matters need attention of valve control type lead acid battery

although valve control type lead acid battery has many advantages, but in use process still need to pay attention to the following:

        1. Avoid excessive charge and discharge: Excessive charge and discharge will affect the life and performance of the battery.

        2. Avoid high temperature environment: High temperature environment will accelerate the aging of the battery and affect its service life.

        3. Regular inspection: Although the maintenance is simple, it is still necessary to check the status of the battery regularly to ensure that it works normally.

        4. Correct use: Use the battery according to the instructions to avoid battery damage due to improper operation.

        In general, the valve-controlled lead-acid battery is a safe, reliable and long-life battery type with a wide range of applications. In the process of use, just pay attention to some basic use and maintenance matters, you can ensure its stable and efficient performance.