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  • SEI film formation mechanism

    SEI film formation mechanism

    Sep , 05 2022
    During the formation of the SEI film, various reduction reactions are carried out by the electrolyte solvent, lithium salt, additives, and trace air impurities. This series of reactions is not only affected by the inherent properties of substances such as reduction potential, reduction activation energy, and exchange current density, but also by other factors such as temperature, electrolyte salt ...
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  • Influence of SEI film on the performance of Li-ion battery

    Influence of SEI film on the performance of Li-ion battery

    Sep , 05 2022
    After extensive research, it has been found that the properties of SEI films greatly affect the performance of Li-ion batteries. During the formation process, the amount of the SEI film formed represents the amount of lithium in the consumed lithium-ion battery, which directly determines the capacity of the lithium- ion battery. Therefore, in the process of forming the SEI film, the less lithium i...
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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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  • Things to keep in mind when installing UPS

    Things to keep in mind when installing UPS

    Sep , 19 2022
    During the installation of a UPS system we need to be careful about some certain factors which can hamper our entire operation and threat the reliability of the system. In this series of technical article we are going to explain 12 major problems that need to be paid attention to when installing a UPS system.  In this article we are going to explain second 6 of the major problems: 7. Use envi...
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  • How a UPS system works with a Generator

    How a UPS system works with a Generator

    Sep , 19 2022
    As weather extremes and storms increase, power outages are likely to continue to rise. According to the U.S. Energy Information Administration, U.S. customers experienced an average of nearly six hours of power interruptions in 2018. If you have invested in a generator, you’ve prepared for when a storm hits, right? Almost. Even with a generator, you still need a battery backup, also known as an Un...
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  • Key Factors in Choosing the Right UPS

    Key Factors in Choosing the Right UPS

    Sep , 26 2022
    You rely on your UPS system for backup if your power goes out, right? But does your UPS have your back? That is, will it provide a bridge of power long enough for what you need? At the very least you will want to save your data and perform a safe shutdown. Your UPS backup battery will only provide power for a set amount of time, known as runtime. In this article, we will provide a step-by-step app...
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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 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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  • 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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  • 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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  • What is open circuit voltage and what is the capacity of a battery?

    What is open circuit voltage and what is the capacity of a battery?

    Oct , 17 2022
    What is the nominal voltage? The nominal voltage of the battery refers to the voltage displayed during normal operation. The nominal voltage of the secondary nickel-cadmium nickel-hydrogen battery is 1.2V; the nominal voltage of the secondary lithium battery is 3.6V. What is open circuit voltage? The open circuit voltage refers to the potential difference between the positive and negative electrod...
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  • What are the reliability and safety test items for batteries?

    What are the reliability and safety test items for batteries?

    Oct , 17 2022
    What are the reliability test items for batteries? 01) Cycle life 02) Discharge characteristics at different rates 03) Discharge characteristics at different temperatures 04) Charging characteristics 05) Self-discharge characteristics 06) Storage characteristics 07) Overdischarge characteristics 08) Internal resistance characteristics at different temperatures 09) Temperature cycle test 10) Drop t...
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