In the high-tech industry, precise microdosing has an impact on product yield and production efficiency.

In the biomedical field, precise microdosing is crucial for products such as contact lenses, where the amount of injected gel is extremely small (less than 0.1ml). Especially for special lenses like pupil magnification lenses, which require a two-step gel injection process and need to consider comfort during wearing, the gel dosage needs to be extremely small and highly accurate. Additionally, with high raw material costs, especially for silicone hydrogel, and high quality requirements, it is necessary to precisely and consistently inject the required amount of gel to improve yield and reduce costs. The choice of a gel injection pump is crucial. UBA's syringe pump offers extremely high metering accuracy and repeatability, maintaining a repeatability accuracy of below ±1% for microdosing (below 0.1ml) in contact lenses. It operates independently of gel material solidification and maintains the set output. UBA's micro syringe pump adopts a diaphragm valve design and can be equipped with membrane films that comply with medical device standards as a columnar gel pump for contact lenses.

In the battery manufacturing process, precise and consistent electrolyte dosing is also crucial. Stable and efficient batteries affect the product's lifespan, and the key to battery performance lies in the precise dosing of the electrolyte. When there is an excessive amount of electrolyte, it can lead to a decrease in lithium-ion battery energy density and increased costs. On the other hand, insufficient electrolyte can result in inadequate infiltration of the active material, causing some active substances to be unable to participate in reactions, severely impacting the cycle life. Therefore, precise electrolyte dosing is beneficial for maintaining energy density, reducing costs, and enhancing the cycle life of lithium-ion batteries. The UBA precision quantitative infusion pump provides an excellent solution for accurately injecting electrolyte into lithium-ion battery cells.
 

Features of UBA Precision Quantitative Infusion Pump

Precise and Stable: The piston of UBA infusion pump is driven by a precision screw rod to achieve linear movement. The liquid injection volume is directly proportional to the stroke, and the injection speed is linearly proportional to the piston speed. Therefore, the electrically driven UBA infusion pump allows the direct setting of parameters such as injection volume and speed on the controller's touch screen. The UBA pump adopts a metering-grade diaphragm valve design, ensuring that the volume does not change during the input-output switching process. Combined with the linear movement of the piston driven by the precision screw rod, it ensures the accuracy and consistency of the injection (with an accuracy of up to ±0.05%).

Non-clogging Pump: In the past, ceramic rotary piston pumps were used for electrolyte injection, which had no dynamic sealing ring and appeared to have low maintenance costs. However, in the case of electrolyte injection for lithium-ion batteries, rotary piston pumps are prone to pump blockage due to electrolyte crystallization, requiring disassembly and repair, which affects production capacity. The UBA electrolyte infusion pump uses a wear-resistant silicon carbide piston sleeve (mirror-polished) and a flexible sealing ring to ensure optimal sealing performance and durability of the sealing ring (maintaining a wetted friction surface structure), ensuring that the piston does not get stuck due to electrolyte crystallization.

Corrosion Resistance: Infusion pumps primarily made of stainless steel rarely encounter corrosion issues when applied to alkaline batteries. However, when specific lithium-ion battery electrolytes are used for injection, their strong corrosive properties can cause certain components in stainless steel to be released into the electrolyte. UBA provides corrosion-resistant solutions by offering materials such as PTFE (Teflon), zirconia ceramics, Hastelloy alloys, silicon carbide, and sapphire for piston construction. Materials such as PTFE, EPDM, and VT can be chosen for the piston, and the pump body can be made of PTFE to achieve absolute corrosion resistance. The high precision, repeatability, ease of operation, and low maintenance demonstrated by UBA precision quantitative infusion pumps make them particularly suitable for electrolyte injection in lithium-ion batteries, supercapacitors, and pouch cells.