Industry Application: Lithium Battery Industry

Product Models Used: AI-7048D71 and 706MD71

Process Overview:
The core principle of the lithium battery vacuum oven is to utilize a negative pressure environment to lower the boiling point of water, thereby accelerating the drying process. After heating for a period under normal pressure, the moisture in the battery or electrode sheets turns into water vapor. Once the moisture evaporates, the vacuum system extracts the water vapor. Nitrogen gas is then introduced to break the vacuum, maintaining a dry environment.

On-Site Application Details:
The vacuum oven requires multiple heating cycles to extract water vapor, with a temperature control range of 85-90°C. Moisture significantly impacts the performance of lithium batteries, including metrics such as voltage and self-discharge. Excessive moisture content can lead to product rejection, reduced quality, or even explosions. Therefore, in various stages of lithium battery production, the positive and negative electrode sheets and batteries undergo multiple rounds of vacuum baking to remove as much moisture as possible.

Problems Solved for Leading Lithium Battery Vacuum Oven Customers:
The customer uses Yudian’s AI-7048D71+706MD71 temperature control modules, which have an accuracy class of 0.2. These modules provide stable, precise, and low-fluctuation temperature control, avoiding safety risks caused by inaccurate drying due to poor temperature control.

Customer Feedback on Yudian:
Reliable and stable, reducing after-sales costs associated with instrument malfunctions.