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  • Lithium battery capacity loss cause analysis

    Lithium battery capacity loss cause analysis

    Jun , 21 2023
    Lithium-ion batteries are the fastest-developing secondary batteries after cadmium-nickel and nickel-hydrogen batteries. Its high-energy properties make its future look bright. However, lithium-ion batteries are not perfect, and their biggest problem is the stability of their charge-discharge cycle. This paper summarizes and analyzes the possible causes of capacity attenuation of Li-ion batteries,...
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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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  • 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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  • 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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  • Why choose gel batteries?

    Why choose gel batteries?

    Aug , 22 2023
    The colloidal lead-acid battery is an improvement of the ordinary lead-acid battery with liquid electrolyte. The sulfuric acid electrolyte is replaced by a colloidal electrolyte, and the safety, power storage, discharge performance, and service life are improved compared with the ordinary battery. The colloidal lead-acid battery adopts a gel-like electrolyte; no free liquid is inside. Under the sa...
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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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  • How do lithium batteries screen distribution groups?

    How do lithium batteries screen distribution groups?

    Sep , 19 2023
    The inconsistency between single batteries often causes problems such as too fast capacity decay and short life during the cycle of battery packs. Improving the consistency of batteries is of great significance to the popularization and application of lithium-ion batteries. 1 Inconsistency analysis Definition of inconsistency The inconsistency of the lithium-ion battery pack means that after the s...
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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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  • 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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  • 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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  • Comparison of advantages and disadvantages of various energy storage systems

    Comparison of advantages and disadvantages of various energy storage systems

    Nov , 11 2023
    1. Lithium-ion batteries "Lithium battery" is a class of lithium metal or lithium alloy as a negative electrode material, the use of non-aqueous electrolyte solution of the battery, due to the chemical characteristics of lithium metal is very active, so that the processing of lithium metal, preservation, use, the environmental requirements are very high. With the development of science and technol...
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  • Comparison of advantages and disadvantages of various energy storage systems

    Comparison of advantages and disadvantages of various energy storage systems

    Nov , 16 2023
    Comparison of advantages and disadvantages of various energy storage systems 1, mechanical energy storage Mechanical energy storage mainly includes pumped storage, compressed air energy storage and flywheel energy storage. (1) Pumped storage: when the grid trough the use of excess electricity as liquid energy media water from the low-lying reservoir to the high-lying reservoir, the grid peak load ...
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