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Lithium batteries

  • What is the 24 hour self discharge test and what precautions should be taken when using a battery?

    What is the 24 hour self discharge test and what precautions should be taken when using a battery?

    Oct , 17 2022
    What are the commonly used standards for batteries? Commonly used IEC standards for batteries: The standard for nickel-metal hydride batteries is IEC61951-2:2003; the lithium- ion battery industry generally follows UL or national standards.In addition, the commonly used standards for batteries also include the Japanese Industrial Standard JIS C standards for batteries. IEC, the International Elect...
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  • Overview of Si-based anode materials

    Overview of Si-based anode materials

    Oct , 17 2022
    The theoretical specific capacity of Si is as high as 4200mAh/g, which is 10 times higher than the theoretical specific capacity of graphite; the lithium intercalation potential of Si is low, which is 0.37mV Li/Li+; and Si is the second most abundant element on the earth, which is not harmful to the environment. Destruction will occur, and the production process of nano-silicon is mature and low-c...
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  • Failure causes of lithium battery- Failure in other aspects

    Failure causes of lithium battery- Failure in other aspects

    Oct , 08 2022
    Due to the low intrinsic conductivity of LiFePO4, the morphology and size of the material itself, as well as the influence of conductive agents and binders, are easily manifested. Discussing the two contradictory factors of size and carbon coating , it is found that the impedance of LiFePO4 electrode is only related to the average particle size. The anti-site defect inside LiFePO4 (Fe occupies Li ...
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  • Failure causes of lithium battery- Failure during charging and discharging

    Failure causes of lithium battery- Failure during charging and discharging

    Oct , 08 2022
    The battery is often overcharged in the process of use. Relatively speaking, the overdischarge situation is less. The heat released during the overcharge or overdischarge process is easy to accumulate inside the battery, which will further increase the battery temperature. , affecting the service life of the battery and increasing the possibility of the battery catching fire or exploding. Even und...
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  • Failure causes of lithium battery- Failure during recycling

    Failure causes of lithium battery- Failure during recycling

    Oct , 08 2022
    The battery is generally exothermic during use, so the effect of temperature is very important. In addition, road conditions, usage, ambient temperature, etc. will have different effects. The capacity loss of LiFePO4 power batteries during cycling is generally considered to be caused by the loss of active lithium ions. The research shows that the aging of LiFePO4 power battery during cycling is ma...
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  • Failure causes of lithium battery- Failure during shelving

    Failure causes of lithium battery- Failure during shelving

    Oct , 08 2022
    In the service life of the power battery, most of the time is in a state of shelving. Generally, after a long period of shelving, the performance of the battery will decline, generally showing an increase in internal resistance, a decrease in voltage, and a decrease in discharge capacity. There are many factors that cause the degradation of battery performance, among which temperature, state of ch...
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  • Failure causes of lithium battery- Failure in the production process

    Failure causes of lithium battery- Failure in the production process

    Oct , 08 2022
    In the production process, personnel, equipment, raw materials, methods, and the environment are the main factors that affect product quality, and the production process of LiFePO4 power batteries is no exception. Personnel and equipment belong to the category of management, so we mainly discuss the last three influences factor. Failure of batteries caused by impurities in electrode active materia...
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  • Advantages and disadvantages of lithium iron phosphate battery and ternary lithium battery

    Advantages and disadvantages of lithium iron phosphate battery and ternary lithium battery

    Sep , 05 2022
    1. Energy density: The energy density of ternary lithium is about 1.7 times that of lithium iron phosphate, so the volume and weight of ternary lithium batteries will be smaller than those of lithium iron phosphate batteries, and the car load will be smaller. 2. Safety performance: lithium iron phosphate battery will perform better in acupuncture test, and in high temperature environment, the stab...
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  • Overview of the lithium battery formation process

    Overview of the lithium battery formation process

    Sep , 05 2022
    Lithium- ion battery formation process includes constant current, constant voltage and intelligent charging. The polarization phenomenon of constant current charging is serious, and its initial current is low, the current at the end of charging is high, the charging time is long, the energy waste is serious, and the battery life will be reduced. During constant voltage charging, the current is rel...
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