Energy
Lithium battery slurry mixing:
The cathode slurry of lithium battery consists of active material, conductive agent, binder and solvent. Currently marketed lithium battery cathode materials include lithium cobaltate, lithium manganate, lithium iron phosphate and ternary materials etc.. The initial mixing process of the paste is carried out under vacuum. The vacuum prevents air bubbles from entering the process and ensures a pure, homogeneous, high-quality paste, which in turn increases the capacity of the battery. Vacculex roots vacuum pump(mechanical booster pump) and screw vacuum pumps are well suited for this application.
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Lithium battery drying:
Before the cells are wound or laminated, the battery pole pieces are dried under vacuum to remove moisture and other solvents such as NMP, and the batteries are often dried in rolls or stacks, with multiple gas exchanges during the process. In addition to drying procedures such as heating, vacuum and gas exchange, the size of the rolls, or the number of laminates in a stack, has a significant impact on the drying results. Vacculex dry vacuum pumps ensure the effectiveness of the entire drying process.
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Lithium battery electrolyte filling, degassing and battery sealing:
The battery is evacuated under vacuum to ensure that there is no residual air or moisture. Electrolyte filling is also done under vacuum, where the electrolyte is injected through a high-precision metering spray gun, with the aim of distributing the electrolyte evenly within the battery. Vacuum is also essential in electrolyte degassing, which eliminates air bubbles so that the lithium ions can move independently, and because they move freely, they are able to charge and discharge very quickly. This is a demanding process, and the vacuum pump needs to work at optimum conditions to provide the purity required by the electrolyte to make the lithium-ion battery durable. Sealing is done under vacuum, which removes moisture, air and any impurities from the battery prior to packaging. Wet and oil-free Vacculex roots vacuum pump(mechanical booster pump) and screw vacuum pumps are the best choice.
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Photovoltaic crystal growth (monocrystalline silicon, polycrystalline silicon):
Monocrystalline silicon crystal growth is a type of crystal growth, using the direct pulling method or zone melting method, from the melt to grow rod-shaped monocrystalline silicon. Polycrystalline silicon is a polycrystalline column grown together, with a rising solid-liquid interface and the ingot’s silicon-liquid phase being stationary. The vacuum system provides a good environment for the growth of silicon ingots and is the vacuuming of the reactor before the chemical reaction takes place. Roots vacuum pumps(mechanical booster pump) are widely used in this field, and can also be used with screw vacuum pumps as pre-stage pumps.
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