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
| Parameter | Specification |
| Machine Dimensions | 5000mm(L) × 2200mm(W) × 2000mm(H) |
| Injection Method | Atmospheric pressure liquid injection |
| Injection Pump | Electronic pump |
| Injection Accuracy | ±0.01g per injection (single pump); 0.1-4g per cycle |
| Sealing Head Pressure | 0.1MPa – 1MPa, minimum adjustment 0.1MPa |
| Vacuum Standing Time | 0.5s – 99s adjustable, accuracy ±0.2s |
| Sealing Head Temperature | Room temperature – 250°C adjustable, accuracy ±5°C |
| Sealing Head Heating Rate | Room temp to 200°C in <15 minutes |
| Sealing Quality | Good melt effect and reliable sealing |
| First-Pass Yield Rate | 99% (excluding material defects) |
| Operation Rate | 95% |
| Production Efficiency | 30-42ppm (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 |


