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  • Lead-acid battery characteristics

    Lead-acid battery characteristics

    Feb , 24 2023
    Ⅰ： Electromotive force, internal resistance and terminal voltage of lead-acid battery: 1): Electromotive force: refers to the potential difference between the two poles, which depends on the relative density and temperature of the electrolyte.The relative density temperature coefficient of lead-acid battery is 0.00075, that is, the relative density decreases by 0.00075 when the electrolyte tempera...
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  • Effect of ambient temperature on battery life

    Effect of ambient temperature on battery life

    Mar , 01 2023
    1）Temperature will affect battery capacity At different temperatures, the viscosity of the sulfuric acid solution in the battery will be inconsistent. For example, when the battery is at a temperature below 0°C, as the temperature decreases, the resistance of the sulfuric acid solution will continue to increase, which will directly increase the weight of the electrode. The effect of polarization, ...
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  • Battery capacity test

    Battery capacity test

    Mar , 09 2023
    Method 1: offline measurement (1) After fully charging the battery pack disconnected from the power supply system, let it stand for 1-24 hours, and start at the ambient temperature of 25 ℃ ± 5 ℃ Discharge; (2) The terminal voltage of the battery shall be measured before discharge. During discharge, the discharge current time and ambient temperature of the battery shall be measured and recorded The...
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  • Cause of low-temperature attenuation of lithium iron phosphate battery

    Cause of low-temperature attenuation of lithium iron phosphate battery

    Mar , 10 2023
    Lithium iron phosphate battery is a common type of lithium-ion battery, which has the advantages of high energy density, long cycle life, and no pollution, so it is widely used in electric vehicles, power tools and other fields. However, in a low-temperature environment, the performance of lithium iron phosphate battery will be degraded to a certain extent. The attenuation of lithium iron phosphat...
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  • How Lithium-ion Batteries Work

    How Lithium-ion Batteries Work

    Mar , 23 2023
    Lithium-ion batteries are popular because they have a number of important advantages over competing technologies: They're generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its at...
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  • What are the factors that are unfavorable to lead-acid batteries?

    What are the factors that are unfavorable to lead-acid batteries?

    Apr , 15 2023
    There are many factors that are unfavorable to the battery, mainly in the charging and discharging phase. (1). The "second super" discharge stage is mainly the discharge current overvalue, that is, the discharge exceeds the allowable current value for a long time; the second problem of discharge is over-discharge, that is, exceeding the allowable discharge capacity of the battery, which is called ...
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  • Three-stage charging of lead-acid battery

    Three-stage charging of lead-acid battery

    Apr , 15 2023
    1. What is the three-stage charging of lead-acid batteries? The charging method of lead-acid batteries should be divided into three stages, namely: constant current charging - constant voltage charging - trickle charging. Constant current charging stage: charge to 13.4V with 0.2C10 A current. Constant voltage charging stage: 2.4V/cell, charging time 3h, cut-off current 0.02C10A Trickle charge phas...
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  • What are the reasons for the sulfation of lead-acid battery plates?

    What are the reasons for the sulfation of lead-acid battery plates?

    Apr , 15 2023
    The reasons for plate sulfation are as follows: 1) The initial charging of the battery is insufficient or the initial charging interruption time is long; 2) The battery is insufficiently charged for a long time; 3) Failure to charge in time after discharge; 4) Frequent overcharging or low current deep discharge; 5) If the density of the electrolyte is too high or the temperature is too high, lead ...
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  • How UPS and generator can become the complete critical power solutions

    How UPS and generator can become the complete critical power solutions

    Apr , 19 2023
    How UPS and generator can become the complete critical power solutions with uninterruptible power and backup power supplies？ A UPS can support its critical load during utility power anomalies and blackouts – but only until its battery autonomy expires. Conversely, an adequately-fuelled generator can support the load indefinitely, but needs time to start up and stabilise. Operators of any data cent...
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  • Summary of the Design of Power Battery Management system

    Summary of the Design of Power Battery Management system

    Apr , 24 2023
    With the increasing number of electric vehicles, battery energy management system is becoming more and more important in addition to looking for batteries with high energy density and high safety. Different power batteries have different properties, and even if the same type of battery properties are inconsistent, in the process of use, there will be the possibility of accidents caused by expansio...
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  • Damage of lithium battery caused by overcharge and discharge

    Damage of lithium battery caused by overcharge and discharge

    Apr , 24 2023
    The cathode materials of lithium-ion batteries are usually composed of active compounds of lithium, while the negative electrodes are carbon with special molecular structure. The main components of the common cathode materials are licoo2/LiFePO4, etc. When charging, the potential added to the battery poles forces the positive compounds to release lithium ions and embed the anode molecules into the...
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  • Research on Safety problems and Solutions of Lithium Battery

    Research on Safety problems and Solutions of Lithium Battery

    Apr , 24 2023
    I. the danger of lithium-ion batteries. Lithium-ion battery is a potentially dangerous chemical power source because of its own chemical characteristics and system composition. (1) high chemical activity. Lithium is the main group element of the second cycle of the periodic table, which has extremely active chemical properties. (2) High energy density. The specific energy of lithium-ion battery is...
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