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  • Self-discharge measurement of lithium batteries: resting and dynamic measurement methods

    Self-discharge measurement of lithium batteries: resting and dynamic measurement methods

    Jun , 14 2023
    The measurement methods of self-discharge of lithium-ion batteries are mainly divided into two categories: 1) static measurement method, which obtains the self-discharge rate by standing the battery for a long time; 2) Dynamic measurement method to realize the parameter identification of the battery in the dynamic process. Static measurement method At present, the mainstream self-discharge measure...
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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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  • 7 Factors to Examine While Choosing a Lithium-Ion Battery Charger

    7 Factors to Examine While Choosing a Lithium-Ion Battery Charger

    Jul , 20 2023
    From confirming an acceptable input voltage to features like protection design and safe charging mode, these factors can help you select the right lithium-ion battery charger 1. Acceptable Input Voltage An input higher than the voltage sustenance capacity of the charger may cause damage to its internal components. Most countries use a battery charger design of the universal global voltage 110-230V...
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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 working principle of anti reverse diode

    The working principle of anti reverse diode

    Aug , 10 2023
    Anti reverse diode, also known as reverse protection diode, is a component used in a circuit to prevent reverse current from flowing in. This type of diode is usually composed of a PN junction diode. Under normal operating conditions, the pressure difference between its P and N poles will cause the diode to conduct, while under reverse conditions, this pressure difference disappears and the diode ...
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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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  • Lithium-ion battery terms explained

    Lithium-ion battery terms explained

    Aug , 18 2023
    I. Battery voltage (V) 1. Open circuit voltage (OCV) The voltage of the lithium battery when it is not connected to an external circuit or load can generally be tested with a multimeter. 2. Operating voltage (WV) The potential difference between the positive and negative terminals of the battery under applied load, that is, when there is current flowing through the battery in the circuit. When the...
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  • Important performance of the battery

    Important performance of the battery

    Sep , 04 2023
    1, electrical performance: (1) Rated capacity: 0.5C discharge, single battery discharge time is not less than 2h, battery pack discharge time is not less than 108min (95%); (2) 1C discharge capacity: 1C discharge, single battery discharge time is not less than 57min (95%), battery pack discharge time is not less than 54min (90%); (3) Low temperature discharge capacity: 0.5C discharge at -20℃, the ...
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  • Interface level standards between digital systems

    Interface level standards between digital systems

    Sep , 09 2023
    Preface When we constrain the FPGA project, we often see such level standards, such as LVCOM18, LVCOS25, LVDS, LVDS25, etc. In fact, these are a series of level standards, in order to have a deeper understanding of the level standards, the following excerpts from the book "The FPGA Way" for the explanation of the level standards to understand. Dual Threshold Standard The so-called dual-threshold s...
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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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  • Lithium battery performance key indicators - internal resistance knowledge

    Lithium battery performance key indicators - internal resistance knowledge

    Oct , 13 2023
    First, the definition and role of internal resistance (1) Definition of internal resistance Internal resistance refers to the resistance encountered by the current passing through the inside of the lithium battery during discharge or charging. It is determined by the conductivity of the material inside the battery, the ion transport rate of the electrolyte, the contact resistance between the elect...
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