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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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  • Why Choose a Lithium-Ion UPS Battery?

    Why Choose a Lithium-Ion UPS Battery?

    Jun , 21 2023
    Although lithium-ion UPS systems have been around for decades, most people have been hesitant to choose this option because they were more expensive. With the onset of advanced battery technology, lithium-ion UPS systems have become much more attractive due to reduced pricing that rivals most standard, lead-acid battery UPS systems. UPS systems feature a state-of-the-art lithium iron phosphate (Li...
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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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  • What is a Rack UPS

    What is a Rack UPS

    Jul , 03 2023
    IT Racks Have Unique Power Requirements A rack uninterruptible power supply (UPS) system is designed for use within standard 19-inch IT racks or rack-based enclosures. Rack-based UPS systems must be designed to provide maximum power in compact packages with built-in batteries. A rack UPS generally uses from 1U to 12U of vertical rack space. Most rack UPS systems employ either online (double conver...
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  • Explanation of power terms related to UPS power supply

    Explanation of power terms related to UPS power supply

    Jul , 28 2023
    Transient recovery time: The time required for the output voltage to recover to the specified range when the load suddenly changes (0-100%, 100% -0%), usually in milliseconds (ms). Filter: A device used to eliminate noise, filtering the input or output to obtain pure alternating current. Shielding: A means of isolating and blocking electromagnetic radiation using physical principles...
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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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  • Selection of the Function of Power Filter Capacitors

    Selection of the Function of Power Filter Capacitors

    Aug , 10 2023
    1 、The Role of Power Filter Capacitors The power filter capacitor is a type of capacitor connected in series between the power output and the load, mainly used to filter high-frequency noise in the power supply and ensure the stability and reliability of the power output. At the output end of the power supply, due to the conversion of AC power to DC power, there will be a certain AC component in t...
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  • The Role of AC Capacitors in High Speed Circuits

    The Role of AC Capacitors in High Speed Circuits

    Aug , 18 2023
    1、Introduction For low-frequency circuits, resistors and capacitors can be analyzed as ideal devices. However, in high-frequency circuits, these two devices will not be "ideal". Today, our main discussion is about the issue of AC capacitors, which are commonly known as AC coupling capacitors. Their main function is to filter out the DC component of the signal, which is symmetrical about the X-axis...
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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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  • Why only online UPS topology provides mission critical load protection

    Why only online UPS topology provides mission critical load protection

    Sep , 09 2023
    Why does only online UPS topology provides mission critical load protection? Modern, static UPS systems are broadly classified into three design architectures: on-line, off-line and line interactive. This post describes and compares the three types and explains why – for truly critical loads – online ups topology is the only acceptable approach. Facility executives today face increased demands for...
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