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  • Basic knowledge of maintenance-free lead-acid batteries

    Basic knowledge of maintenance-free lead-acid batteries

    Dec , 23 2023
    1. Meaning of maintenance-free battery The main advantage of the valve-controlled lead-acid battery is that the oxygen generated on the positive plate during charging is reduced to water on the negative plate through the recombination reaction, and water does not need to be added during the specified floating life period when used, so it is also called maintenance-free lead-acid battery. It can be...
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  • Working principle of lead-acid battery

    Working principle of lead-acid battery

    Dec , 23 2023
    1. The generation of electromotive force of lead-acid batteries After the lead-acid battery is charged, the positive plate lead dioxide (PbO2), under the action of water molecules in the sulfuric acid solution, a small amount of lead dioxide and water produce dissociable unstable substances - lead hydroxide (Pb (OH) 4), hydroxide ions in the solution, lead ions (Pb4) remain on the positive plate, ...
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  • Lead-acid battery leakage causes and prevention

    Lead-acid battery leakage causes and prevention

    Nov , 25 2023
    1. Battery leakage 1.1 Causes 1) Structural seal damage in the production process, such as defects in the welding or bonding surface of the pole and shell that are not found in time, resulting in leakage in use. 2) The apparent or invisible damage to the battery shell caused by improper operation during transportation or installation is not eliminated in time. 3) The charging setting is unreasonab...
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  • Causes and prevention of lead-acid battery bulge

    Causes and prevention of lead-acid battery bulge

    Nov , 25 2023
    1. The battery is bulging 1.1 Causes 1) Overcharge 2) Ambient high temperature 3) Thermal runaway 4) Individual monomers in the series circuit are not found in time, resulting in overcharging of other batteries 1.2 Prevention 1) The BSB system is installed to intelligently manage the charging of the battery itself and effectively prevent the overcharging of the battery. 2) Secondly, the BMS system...
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  • Method for providing the service life of valve-controlled closed lead acid Battery (VRLA)?

    Method for providing the service life of valve-controlled closed lead acid Battery (VRLA)?

    Nov , 03 2023
    1 Temperature affects battery life: thermal runaway causes temperature rise: Valve-controlled closed lead-acid battery (VRLA) charging when the internal gas recombination itself is an exothermal reaction, so that the battery temperature rises, floating charge flow increases, the gas evolution increases, and the battery temperature rises higher, the battery itself is a "poor liquid", tightly assemb...
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  • The role and importance of AGM partitions

    The role and importance of AGM partitions

    Oct , 19 2023
    AGM separator and transfer reaction between positive and negative plates Structure and function of partitions The AGM partitions used by VRLA have the following additional functions: Absorb the electrolyte (the third active substance of the battery) so that it does not flow. Provides a relatively large gas transfer hole for oxygen diffusion and thus facilitates the operation of the COC. High ionic...
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  • Micropore system anatomy of AGM clapboard

    Micropore system anatomy of AGM clapboard

    Oct , 11 2023
    The performance characteristics of VRLA batteries are largely determined by the capillary characteristics of the AGM separator, that is, the ability to keep the micropores in the thickness direction of the separator filled with electrolyte and prevent the electrolyte from drying out and causing delamination. These properties are influenced by the micropore structure, especially the micropore distr...
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  • Effect of temperature on the performance of lead-acid batteries

    Effect of temperature on the performance of lead-acid batteries

    Sep , 18 2023
    What are the effects of temperature on the performance of lead-acid batteries? From the chemical reaction equation of lead-acid batteries, PbO2 is on the positive plate, and Pb is on the negative plate. The electrical and physical properties of these two substances vary very little with temperature, so it can be said that the temperature effect of the discharge performance of lead-acid batteries i...
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  • Lead-acid battery thermal runaway failure analysis when the battery is in the state of charge

    Lead-acid battery thermal runaway failure analysis when the battery is in the state of charge

    Sep , 04 2023
    Lead acid battery thermal runaway fault analysis When the battery is charged: There is a cumulative increase in battery temperature. When the heat accumulates to a certain extent during the warming process, the battery terminal voltage will suddenly decrease, forcing the current to increase suddenly, and the phenomenon of high battery temperature and damage to the battery is called thermal runaway...
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