News

  • 0
  • 0

Global lithium-ion battery market trend 2025-2029 The common problems in the use and maintenance of lithium batteries by Newspfcstal

OPEC+ is likely to stick to its plan for a small increase in oil lithium-ion battery will continue to be influenced by the oil supply shortage.


1. Basic concepts of lithium-ion battery:

The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V (4.1V, which has different designs according to the brand of the battery). (The specification for lithium-ion batteries is: lithium-ion secondary batteries

2. Requirements for charging lithium-ion battery (GB/T182872000 specification)

First of all, constant current charging, that is, the current is constant, and the battery voltage gradually increases with the charging process. When the battery terminal voltage reaches 4.2V (4.1V), the constant current charging is changed to constant voltage charging; the voltage is constant, and the current is based on the battery. The saturation level gradually decreases as the charging process continues, and when it decreases to 0.01C, the charging is considered to be terminated. (C is a way of expressing the battery's nominal capacity against the current. For example, if the battery has a capacity of 1000mAh, 1C is the charging current of 1000mA. Note that it is me instead of mAh, and 0.01C is 10mA.) Of course, the standard representation is 0.01 C5A, simplified here.

1651201507773280.jpg

3. Why do you think 0.01C is the end of charging?

This is stipulated by the national standard GB/T18287-2000, and it is also discussed. In the past, everyone generally ended with 20mA. The industry standard YD/T998-1999 of the Ministry of Posts and Telecommunications also stipulates that no matter how large the battery capacity is, the stop current is 20mA. The 0.01C specified by the national standard helps charge more fully, which is beneficial for the manufacturer to pass the appraisal. In addition, the national standard stipulates that the charging time should not exceed 8 hours; that is to say, even if it has not reached 0.01C, the charging is considered to be over after 8 hours. (Batteries with good quality should reach 0.01C within 8 hours, for batteries with poor quality, it is meaningless to wait).

4. How to distinguish whether the battery is 4.1V or 4.2V?

Consumers are indistinguishable; it depends on the product specification of the cell manufacturer. Some brands of batteries are 4.1V and 4.2V universal, such as A&TB (Toshiba); domestic manufacturers are 4.2V, but there are exceptions, such as Tianjin Lishen is 4.1V (but it is currently 4.2V).

High-quality graphite supplier

Luoyang Moon & Star New Energy Technology Co., LTD, founded on October 17, 2008, is a high-tech enterprise committed to developing, producing, processing, selling, and technical services of lithium-ion battery anode materials. After more than 10 years of development, the company has gradually developed into a diversified product structure with natural graphite, artificial graphite, composite graphite, intermediate phase, and other negative materials (silicon-carbon materials, etc.). The products are widely used in high-end lithium-ion digital power and energy storage batteries. If you are looking for Lithium battery anode material, click on the needed products and send us an inquiry:sales@graphite-corp.com.

 


Where is the best place for humans to live in outer space? So far, the moon is more habitable in outer space, and it is likely to be turned into a planet. However, whether humans can live on the moon for a long time, these questions have always been lingering in everyone's minds, always There is no way to get an answer. According to the report, a team from the University of Aeronautics and Astronautics in Beijing, after nearly 370 days of closed life, finally simulated the life experiment on the moon, and finally knew what the final truth was. Live here for a long time.

All aspects of human beings are constantly improving, and the demand for lithium-ion battery is also increasing.If you are engaged in the lithium-ion battery industry, you just happen to contact us.

Inquery us

Our Latest News

Global early strength agent market trend 2024-2029 What are Early Strength Agents? by Newspfcstal

Early strength agent is an admixture which accelerates the development of concrete early strength and has no significant effect on later strength.…

Global zinc stearate emulsion market trend 2023-2030 What is Zinc Stearate Emulsion Used For? by Newspfcstal

The US Commerce Secretary has announced that the US will temporarily lift tariffs imposed on Ukraine during the Trump administration to help Ukraine recover its economy and continue to show support for the Russia-Ukraine situation. "For steel mills t…