What are the reasons for electrode paste leakage?

The reasons for electrode paste leakage are quite complex and may involve multiple factors, mainly including the following points:

Electrode paste quality: The composition and quality of electrode paste have a significant impact on the leakage of paste. If the ash content of the electrode paste is too high, the volatile content is inappropriate, and the softening point is low, it may cause the electrode paste to be unstable during the sintering process, resulting in paste leakage.

Electrode cylinder quality: The welding quality, material, and thickness of the electrode cylinder can also affect the sintering effect of the electrode paste. If there are welding defects in the electrode cylinder, the material does not meet the requirements, or the thickness is uneven, it may cause leakage of the electrode paste during the sintering process.

Sintering process: The sintering temperature and time of the electrode paste have a significant impact on the final performance of the electrode. If the sintering temperature is too high or too low, or the sintering time is too long or too short, it may lead to insufficient sintering of the electrode paste, resulting in paste leakage.

Operational factors: Improper operation is also an important reason for electrode paste leakage. For example, if the operating parameters such as the electrode pressing speed and the electrode cylinder lifting speed are not appropriate, it may lead to the instability of the electrode paste during the sintering process, resulting in paste leakage.

Environmental factors: Environmental humidity, temperature, etc. may also affect the sintering process of electrode paste, thereby affecting the performance of the electrode. For example, high humidity may cause excessive moisture in the electrode paste during the sintering process, affecting its sintering effect.

Therefore, in order to reduce the phenomenon of electrode paste leakage, it is necessary to comprehensively consider the quality of electrode paste, electrode cylinder, sintering process, and operation process, and make appropriate adjustments and optimizations.