Automatic Pouch Cell Electrolyte Filling & Vacuum Sealing Machine – Small Soft Pack Battery Production Line

This fully automatic small soft pack battery filling machine integrates electrolyte injection, vacuum soaking, and pre-sealing in a compact rotary indexing design. With 30-42ppm production capacity, ±0.01g filling accuracy, and ≤ -95KPa vacuum capability, it delivers reliable performance for pouch cell manufacturing. The system features automatic tray handling, PLC control, corrosion-resistant construction, and one-click electrolyte changeover – ideal for battery production lines requiring high yield (99%) and uptime (95%).

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Automatic electrolyte filling machine Product Overview

The automatic pouch battery liquid injection machine is a fully automated production solution for small soft pack lithium batteries. The system starts with manual placement of full tray stacks in the oven room, then automatically performs tray destacking, cell pickup, turntable transfer, atmospheric pressure liquid injection, vacuum standing, pre-sealing, automatic tray loading, and stacked tray output—with an alert when the stack is full

Pouch Cell Electrolyte Filling Features

High-Precision Dosing: ±0.01g single-injection accuracy with proprietary electronic pump technology

Fully Automated Workflow: Automatic tray destacking → cell loading → injection → standing → sealing → unloading → tray stacking

High Vacuum Performance: Vacuum standing and sealing up to ≤-95KPa

Flexible Temperature Control: Sealing temperature from room temperature to 250°C

Wide Compatibility: Supports batteries with body length 18-42mm, width 50-85mm, thickness 2-10mm

Efficient Production: 30-42ppm output with 99% first-pass yield and 95% operation rate

Corrosion-Resistant Design: AL6061 + SUS304 fixtures, EPDM seals, stainless steel pneumatic fittings in exposed areas

User-Friendly Operation: Touchscreen parameter adjustment, three operation modes, safety interlocks

Quick Changeover: One-key electrolyte return function and touchscreen injection volume adjustment

Bubble-Free Dosing: Vibration + vacuum degassing in storage tank prevents air bubbles

 

Pouch Cell Electrolyte Filling Specifications

ParameterSpecification
Machine Dimensions5000mm(L) × 2200mm(W) × 2000mm(H)
Injection MethodAtmospheric pressure liquid injection
Injection PumpElectronic pump
Injection Accuracy±0.01g per injection (single pump); 0.1-4g per cycle
Sealing Head Pressure0.1MPa – 1MPa, minimum adjustment 0.1MPa
Vacuum Standing Time0.5s – 99s adjustable, accuracy ±0.2s
Sealing Head TemperatureRoom temperature – 250°C adjustable, accuracy ±5°C
Sealing Head Heating RateRoom temp to 200°C in <15 minutes
Sealing QualityGood melt effect and reliable sealing
First-Pass Yield Rate99% (excluding material defects)
Operation Rate95%
Production Efficiency30-42ppm (varies by product size, requires different fixtures)

Compatible Battery Sizes

Battery Body Length (A)18mm – 42mm
Total Battery Length (B)≤50mm
Gas Bag Width (C)≥20mm
Battery Width (D)50 – 85mm
Gas Bag Clamp Width (E)≥15mm
Battery Thickness (F)2 – 10mm

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