Precision Dispensing Pump

The Precision Dispensing Pump is a critical component within an Electrolyte Filling System, responsible for accurately measuring and transferring precise volumes of liquid electrolyte into battery cells during the manufacturing process. It ensures consistent fill levels, prevents overfilling or underfilling, and maintains the chemical integrity of the electrolyte through controlled flow rates and minimal contamination. This pump is a part-level component used in the computer, electronic, and optical product manufacturing industry, specifically in battery production lines. It operates using a positive displacement mechanism, such as a piston, diaphragm, or peristaltic design, to draw a specific volume of electrolyte from a reservoir and dispense it into the battery cell. Flow is controlled by precision actuators and sensors that regulate stroke length, speed, and timing to achieve micrometer-level accuracy in volume delivery. The pump is constructed from materials that resist corrosion and maintain purity, including stainless steel (316L), PTFE, ceramic, and fluoropolymer seals. Key parameters include a flow rate of 0.5–5 L/min, dispensing accuracy of ±0.5%, repeatability of ±0.1%, operating pressure of 1.0–1.6 MPa, operating temperature of 5–60°C, viscosity range of 1–1000 mPa·s, power supply of 24 V DC ±10%, power consumption ≤50 W, ingress protection IP54–IP65 (per IEC 60529), wetted materials PTFE, PVDF, 316L, weight 8–12 kg, and dimensions approximately 300×200×250 mm. These values are reference ranges and must be verified for the specific model and application. The pump is designed for dry indoor areas and is protected against reverse polarity. For selection, consider the required flow rate, accuracy, viscosity of the electrolyte, and operating environment. Verify model-specific values and standards with the legal manufacturer or supplier before procurement. Maintenance signals include inconsistent dispensing volumes, leaks, or unusual noise. Failure boundaries include operation outside the specified temperature or pressure limits, which may degrade seals or reduce accuracy.

The pump uses a positive displacement mechanism (piston, diaphragm, or peristaltic) to draw a precise volume of electrolyte from a reservoir and dispense it into battery cells. Precision actuators and sensors control stroke length, speed, and timing, achieving micrometer-level accuracy. The flow rate is adjustable from 0.5 to 5 L/min, with dispensing accuracy of ±0.5% and repeatability of ±0.1%. The pump operates within a pressure range of 1.0–1.6 MPa and temperature range of 5–60°C, handling viscosities from 1 to 1000 mPa·s. The mechanism ensures minimal contamination and maintains chemical integrity.