Two major indicators of lithium battery composition capacity equipment: temperature and accuracy
Jul 29, 2022
Lithium battery formation: generally refers to the implementation of a series of technological measures to stabilize the performance of the initially charged battery, including small current charge and discharge, constant temperature static, etc.
Lithium battery capacity division: that is to analyze the capacity. During the manufacturing process of the battery, the actual capacity of the battery cannot be completely consistent due to technological reasons. Through certain charge and discharge tests, the process of classifying the battery by capacity is called capacity division.
The capacity division of the battery is completed by the chemical composition container (because the basic principles of chemical composition and capacity division are the same, the functions of chemical composition and capacity division are integrated in the same cabinet, which is called chemical composition container), and the function of dividing into a container is actually It is like a charger, but it can charge and discharge a large number of batteries at the same time.
When the battery is divided into capacity, the data of each detection point is obtained through computer management, so as to analyze the data such as the capacity and internal resistance of these batteries, and determine the quality level of the battery. This process is capacity division. After the battery is divided for the first time, it needs to stand for a period of time, generally not less than 15 days. During this period, some inherent quality problems will appear.
In order to improve the electrochemical performance of the battery such as cycle life, stability, self-discharge, safety, etc., the consistency of the lithium battery must be strictly controlled or the battery grade must be accurately assessed. Very demanding.
As an important link in the production and manufacture of lithium batteries, chemical composition plays a crucial role in the consistency and stability of the final product. However, for a long time, in the manufacturing process of lithium batteries, the high energy consumption of testing equipment, the large heat generation, the high temperature of the production environment, and the unstable accuracy have become the biggest pain points in this process.
For chemical formation, the higher the control accuracy of current and voltage, the better the quality of lithium battery products. The accuracy of current and voltage sensors is more than 1/10,000 is an ideal choice.
For capacity distribution, test accuracy and capacity distribution ambient temperature are the two most important indicators to test its performance, and they are also the two most important advantages of energy feedback equipment.