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Explore and analyze the thermal power of Li- ion cells and battery packs (part-1)

Jul , 04 2022

Temperature is very important for lithium- ion batteries. Low temperature will reduce the electrical performance of lithium- ion batteries (capacity, rate performance), but it can improve the storage life of lithium- ion batteries. High temperature can improve electrical performance (capacity, rate performance), but It will reduce the stability of the electrode/electrolyte interface and cause a ra...

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Explore and analyze the thermal power of Li- ion cells and battery packs (part-4)

Jul , 11 2022

Continuing from last week’s article, this week we are going to discuss other parameters. 3. Influence of charge and discharge rate The charge and discharge rate characterizes the charge and discharge current of the lithium- ion battery. Therefore, the charge and discharge rate must have a very significant impact on the heat generation power of the lithium-ion battery. , the final temperature and t...

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Explore and analyze the thermal power of Li- ion cells and battery packs (part-5)

Jul , 11 2022

Continuing from last week’s article, this week we are going to discuss other parameters. 4. The temperature rise and temperature difference of the battery pack under different working conditions On the basis of the above-mentioned single cell heat generation model, the battery pack model was established by using SOLIDWORKS software to simulate the heat production and the battery pack under differe...

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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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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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How to do the battery identification of lithium technology?

Oct , 17 2022

How to do the battery identification of lithium technology? According to the IEC61960 standard, the identification of secondary lithium batteries is as follows: 01) The battery identification consists of 3 letters followed by 5 numbers (cylindrical) or 6 (square) numbers. 02) The first letter: Indicates the negative electrode material of the battery. I—represents lithium ions with built-in batteri...

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What are the possible reasons for the zero voltage or low voltage of the single cell and battery pack?

Oct , 24 2022

What are the possible reasons for the zero voltage or low voltage of the single cell? 01) External short circuit or overcharge or reverse charge of the battery (forced overdischarge); 02) The battery is continuously overcharged by high rate and high current, resulting in the expansion of the battery pole core, the direct contact of the positive and negative poles, and the short circuit; 03) Intern...

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How Lithium-ion Batteries Work

Mar , 23 2023

Lithium-ion batteries are popular because they have a number of important advantages over competing technologies: They're generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its at...

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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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The function and operation method of UPS power supply are not affected by voltage interference

Oct , 08 2023

UPS power supply is a type of power protection device mainly used to protect electronic devices (such as computers, servers, etc.) from damage during power outages or voltage instability. The function of UPS power supply: 1.Protect electronic devices from power outages and voltage fluctuations. 2.In the event of a power outage, the UPS power supply can continue to supply power,ensuring the normal ...

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What are the aspects of battery energy storage system?

Nov , 11 2023

When analyzing the energy storage process, the part of the object or space range drawn out in order to determine the research object is called the energy storage system. It includes energy and matter input and output, energy conversion and storage equipment. Energy storage systems often involve a variety of energy, a variety of equipment, a variety of substances, multiple processes, is a complex e...

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Industrial and commercial energy storage system liquid cooling design

Jun , 14 2024

1. Industrial and commercial energy storage system liquid cooling design For the high-rate charging and discharging process of large-scale battery packs, the cooling capacity of air cooling system can not meet the heat dissipation demand of battery packs. Liquid has a higher specific heat capacity and higher thermal conductivity than air, and the liquid cooling cooling speed is faster, which has a...

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