The influence of the fluidity of electrode paste on electrode sintering

The fluidity of electrode paste has a significant impact on electrode sintering, mainly manifested in the following aspects:

Filling ability:
Good fluidity means that the electrode paste can better fill various parts of the mold, including fine voids, thereby obtaining a dense and defect free electrode after sintering.
If the fluidity of the electrode paste is poor, it may form voids or uneven density distribution in the mold, affecting the mechanical strength and conductivity of the electrode.
Forming accuracy:
Electrode paste with good fluidity is easy to shape, which can improve the shape accuracy and size consistency of the electrode.
Poor fluidity may lead to difficulties in electrode forming, and even cracks or fractures, thereby reducing the yield of finished products.
Sintering process:
During the sintering process, good fluidity helps to achieve uniform distribution and sufficient contact of raw materials, thereby promoting the sintering reaction and obtaining high-performance electrodes.
If the fluidity of the electrode paste is poor, there may be local incomplete fusion or incomplete sintering during the sintering process.
Mechanical performance:
The mechanical properties of the final sintered electrode, such as density, hardness, compressive strength, etc., largely depend on the fluidity of the electrode paste.
Poor fluidity may lead to uneven internal structure of the electrode, thereby reducing its overall mechanical performance.
Conductivity and performance:
The conductivity of electrodes directly affects their performance in electrochemical devices, and the conductivity largely depends on the density and uniformity of the electrode material.
If the fluidity of the electrode paste is poor, it may affect the formation of the conductive network of the sintered electrode, thereby affecting the overall performance of the electrode.
Therefore, in the production and use of electrode paste, it is necessary to control the fluidity of the electrode paste reasonably according to specific process requirements to ensure the sintering quality of the electrode and the performance of the final product.