 |
PVP K30 (Tech-grade)
Kingcham
Slurry is very important in lithium-ion battery production. 70% of the quality of the battery is related to the quality of the pole piece, and 70% of the quality of the pole piece is related to the quality of the slurry. Making the paste is equivalent to completing 50% of the battery, which is the core work of battery manufacturing. Lithium-ion power battery slurry is basically composed of active material, conductive agent, binder and solvent. In the pole piece preparation section, the three processes of material drying, sol and slurry directly determine the quality of the slurry.
Lithium-ion battery cathode materials are difficult to disperse evenly during the homogenization process, and dispersants need to be added. The cathode materials of lithium batteries mainly include lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, etc., due to their low conductivity, in the battery preparation process, it is often necessary to add an appropriate amount of conductive agent, such as graphene, carbon nanotube, etc., to
improve the conductivity of the cathode material.
However, due to the small particle size and large specific surface area of ultra-fine battery cathode materials, such as lithium iron phosphate, it is difficult to disperse evenly during the homogenization process, resulting in high viscosity or low solid content of the slurry, this further leads to difficulty or even impossibility of coating, so the selection of dispersant is particularly important for the dispersion of lithium-ion battery cathode slurry.
Slurry is very important in lithium-ion battery production. 70% of the quality of the battery is related to the quality of the pole piece, and 70% of the quality of the pole piece is related to the quality of the slurry. Making the paste is equivalent to completing 50% of the battery, which is the core work of battery manufacturing. Lithium-ion power battery slurry is basically composed of active material, conductive agent, binder and solvent. In the pole piece preparation section, the three processes of material drying, sol and slurry directly determine the quality of the slurry.
Lithium-ion battery cathode materials are difficult to disperse evenly during the homogenization process, and dispersants need to be added. The cathode materials of lithium batteries mainly include lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, etc., due to their low conductivity, in the battery preparation process, it is often necessary to add an appropriate amount of conductive agent, such as graphene, carbon nanotube, etc., to
improve the conductivity of the cathode material.
However, due to the small particle size and large specific surface area of ultra-fine battery cathode materials, such as lithium iron phosphate, it is difficult to disperse evenly during the homogenization process, resulting in high viscosity or low solid content of the slurry, this further leads to difficulty or even impossibility of coating, so the selection of dispersant is particularly important for the dispersion of lithium-ion battery cathode slurry.