• +8617722959228
  • mango@esscollege.com
  • China

Production process 10- Formation

In the UPS (uninterruptible power supply) production process, formation is an important step after the battery is injected into the electrolyte, the purpose is to activate the chemical substances inside the battery, forming a stable structure, including the following key links:

main content

Definition of formation

Formation is the process of forming a stable chemical reaction system inside the battery through electrochemical reaction during the first charging of the lithium-ion battery, forming the SEI film (solid electrolyte interface), and ensuring that the battery has better performance in the subsequent use of the process.

Formation steps

Initial charging: In this step, the positive and negative electrode materials in the battery are initially charged, so that it quickly forms a chemical reaction system, laying the foundation for subsequent cell formation.

Constant current charging: The battery is charged with a constant current to activate and stabilize the chemical reaction system inside the battery, and improve the capacity and cycle life of the battery.

Constant voltage charging: The battery is charged at a constant voltage to further stabilize the chemical reaction system inside the battery and improve the performance stability and safety performance of the battery.

Discharge test: After the completion of the battery formation, the battery is discharged to test whether the performance and safety performance of the battery meet the requirements.

Type of formation process

The forming process types include high temperature forming, low temperature forming, high current forming, low current forming, open forming, closed forming and negative pressure forming. Different formation conditions will affect the performance of the battery.

Optimization of formation conditions

The formation conditions can be adjusted by setting the formation current density, formation cut-off voltage, formation temperature and applied pressure to improve the battery performance.

Changes during formation

During the formation process, the active material is activated, lithium ions begin to move in the system, forming SEI film, which will prevent the further occurrence of side reactions, reduce the loss of lithium content in lithium-ion batteries, and have an important impact on the initial capacity loss, cycle life, rate performance and safety of the battery.

The importance of formation

Formation is a very important part of the battery manufacturing process, and is also one of the key steps to ensure the quality of the battery. Through the battery formation, the various materials and components inside the battery can achieve a more stable and uniform state, avoid unnecessary safety problems, and also improve the capacity, cycle life and performance stability of the battery.

CONCLUSION

Through the above formation process, the chemical substances inside the battery are fully reacted to form a stable structure, laying the foundation for the long-term stable operation and safety of the battery.

UPS BATTERY SERIES

UPS (Uninterruptible Power Supply) batteries are an important component of power supply systems designed to provide stable power support for electronic devices.

Read More

Extended reading

THE ESSC Brand promise

Global supply

Our products sell well all over the world, covering many countries and regions, through the global logistics network, to provide customers with convenient purchasing experience.

Rigorous quality

We adhere to the highest quality control standards to ensure every product meets industry regulations and customer expectations, earning trust through consistent excellence.

Excellent service

With a customer-centric approach, we provide prompt responses, professional support, and personalized services, aiming to deliver the best user experience and long-term value.

QUICK INQUIRY

Please enable JavaScript in your browser to complete this form.
Name