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Lead acid batteries

  • Characteristics and principle of OPzV colloidal battery

    Characteristics and principle of OPzV colloidal battery

    Aug , 09 2023
    OPzV is made of high-purity nano-scale materials, which can greatly extend the battery life: Principles and features: (1) can effectively inhibit the delamination of lead-acid battery electrolyte, dendrite short circuit and other problems. (2) The adsorption of colloid reduces the supersaturation of PbSO4 and produces loose porous PbSO4: (3) Delay the formation of PbSO4 dense crystalline layer and...
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  • Effect of carbon black content on negative electrode performance of lead-acid battery

    Effect of carbon black content on negative electrode performance of lead-acid battery

    Aug , 04 2023
    VRLA battery is not ideal in electric vehicles because of its short life under deep charge and discharge cycle conditions. In recent years, with the improvement of positive plate grid materials, the cycle life of batteries has been improved, and the main reason for the failure of VRLA batteries for electric vehicles is the sulfation of the negative electrode. To this end, there are more studies on...
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  • Selection of lead carbon-carbon addition

    Selection of lead carbon-carbon addition

    Jun , 30 2023
    The influence of chemical properties such as carbon material type and addition amount on battery performance was studied. Several different types of carbon materials (graphite, carbon black, activated carbon, etc.) were selected and tested for their effects on the negative electrode plate with additional amounts ranging from 0.2% to 4%, as well as hydrogen evolution inhibitors and adhesives. And c...
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  • 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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