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Lead acid batteries

  • Preparation of lead-reduced graphene oxide nanocomposites and their applications

    Preparation of lead-reduced graphene oxide nanocomposites and their applications

    Jun , 14 2023
    The shortcomings of lead-acid batteries are: low energy density and short cycle life. Lead sulfate formed by the negative plate of the lead-acid battery during the discharge process, after the battery is placed, the small particles of lead sulfate will be converted into large particles of lead sulfate, and the large particles of lead sulfate will not be converted into lead during the charging proc...
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  • Preparation of reduced graphene oxide loaded lead oxide composites for lead carbon batteries

    Preparation of reduced graphene oxide loaded lead oxide composites for lead carbon batteries

    Jun , 07 2023
    Graphene is a new type of two-dimensional structure conductive material, which is composed of a single layer of carbon atoms and its basic structural unit is a six-membered ring structure, which has good chemical stability. Moreover, graphene has a high specific surface area, which not only provides a large reaction interface, but also improves the dispersion of surface nanomaterials. The high con...
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  • Negative electrode formula for high temperature performance of lead-acid battery

    Negative electrode formula for high temperature performance of lead-acid battery

    Jun , 07 2023
    Negative electrode formulation for high-temperature performance of lead-acid batteries (containing the first hydrogen evolution inhibitor Bi2O2CO3 and the second hydrogen evolution inhibitor ZnO). The basic formula of the negative electrode (number of weight) is: 100 parts lead powder, 8 ~ 11 parts dilute sulfuric acid, 9 ~ 13 parts deionized water, 0.06 ~ 0.14 parts short fiber, 0.10 ~ 0.20 parts...
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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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  • 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 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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  • 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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  • 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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  • 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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