HOME >> PRODUCTS >> Lithium Battery Production Machine Line >> Prismatic Cell Machine
1. Equipment Introduction
1.1 Equipment Overview
This equipment is mainly used for the Z-shaped stacking process of prismatic lithium-ion power battery cells.
1.2 Workflow
The separator is actively unwound, fed through the tension control mechanism, and guided onto the stacking platform. This platform then shifts the separator back and forth to prepare for electrode placement.
The process begins with stacking positive and negative electrode sheets: two robotic suction arms collect these sheets from their respective left-side feed boxes, align them with precision, and stack them onto the platform.
Once stacking is finished, the separator is cut to size. A robotic arm transfers the cell to the taping station, where taping is performed automatically—all while the next cell’s stacking process kicks off seamlessly, ensuring uninterrupted operation.
1.3 Equipment Features
· 1.3.1 Separator: Active unwinding; tension control; deviation correction; static elimination; alignment accuracy ±0.5mm.
· 1.3.2 High precision: Mechanical positioning of electrode sheets ensures total stacking accuracy within ±0.3mm.
· 1.3.3 High efficiency: Single-side stacking speed reaches 1.2s–1.5s/Pcs depending on sheet size.
· 1.3.4 Dust protection: Effective dust protection mechanisms are installed at material box and pre-alignment positions.
· 1.3.5 Reliability: All high-precision and frequently moving modules are fixed with positioning pins.
· 1.3.6 Multi-sheet & missed sheet protection: Equipped with anti-multiple sheet mechanism and detection system to prevent stacking errors.
· 1.3.7 Tab inspection: Prevents inclusion of faulty electrode sheets with bent or missing tabs.
· 1.3.8 Stacked-cell discharge
2. Standard Components
|
No. |
Component Name |
Qty/Set |
Description |
|
1 |
Automatic Material Feeder |
4 |
Special insert-type feed boxes; 2 sets for both positive and negative sheets |
|
2 |
Auxiliary Feeding Unit |
4 |
Brushes, vibration, air blow, dust removal, anti-multi-sheet |
|
3 |
Lifting Unit for Feeding |
2 |
Ensures reliable sheet pickup; alarms for sheet shortage |
|
4 |
Separator Tension Mechanism |
2 |
Active unwinding with constant tension |
|
4.1 |
Separator Deviation Correction |
2 |
Roll deviation correction |
|
5 |
Pre-positioning Module |
4 |
Mechanical positioning with dust suction system |
|
5.1 |
Multi-sheet Detection |
4 |
Ultrasonic thickness detection |
|
6 |
Stacking Robot Arm |
4 |
Servo-driven, reliable sheet pickup and placement |
|
7 |
Suction Cup Assembly |
8 |
2 vacuum nozzles + 2 suction plates for each type |
|
8 |
Stacking Platform |
2 |
Servo-driven with ball screw linear motion |
|
9 |
Cell Transfer Arm |
1 |
Automatically transfers cells |
|
10 |
Separator Cutting Unit |
2 |
Thermal cutters; < 3mm distance to cell edge |
|
11 |
Side Taping Unit |
1 |
Configurable for tab areas and four sides |
|
12 |
Cell Discharge Mechanism |
1 |
Stacked discharge |
|
13 |
Control Panel |
1 |
Touch screen with emergency/power buttons |
|
14 |
Internal Control System |
1 |
All electrical/pneumatic inside enclosure |
|
15 |
Frame Panel |
2 |
Color: computer white |
|
16 |
Dustproof Cover |
1 |
Aluminum alloy + acrylic, with safety interlock |
|
17 |
Dust Collection |
1 |
Blower system at feed and pre-alignment stations |
|
18 |
Vacuum System |
/ |
Provided by manufacturer |
3. Material Specifications
3.1 Material Dimensions
|
Material |
Form |
Length (mm) |
Width (mm) |
Thickness (um) |
ID (mm) |
Max OD (mm) |
|
Cathode |
Sheet |
50-160 |
30-150 |
100-280 |
- |
- |
|
Anode |
Sheet |
50-160 |
30-150 |
80-280 |
- |
- |
|
Cathode Tab |
- |
10-40 |
10-60 |
12-30 |
- |
- |
|
Anode Tab |
- |
10-40 |
10-60 |
6-20 |
- |
- |
|
Separator |
Roll |
- |
60-250 |
16-45 |
76.2 |
300 |
|
Tape |
Roll |
20-80 |
10-20 |
100-200 |
76.2 |
150 |
Notes:
1. Electrode length refers to tab direction only (excluding tab).
2. No obvious powder loss, edge waviness or burrs < 15um; punching tolerance < 0.2mm.
3. No obvious warping, deformation or adhesion.
4. Separator serpentine deviation: ±0.2mm/1000mm.
3.2 Cell Specifications
|
Item |
Specification |
Cell Diagram |
||
|
Length L |
50-160 mm |
|
||
|
Width W |
30-150 mm |
|||
|
Thickness T |
3-20 mm |
|||
|
Tab Exposure L1 |
6-30 mm |
|||
|
Tab Orientation |
Opposite |
|||
|
L + L1 (tab side limit) |
≤200 mm |
|||
|
|
|
|||
4. Technical Parameters
|
Item |
Value |
|
Single-side stacking time |
1.2 - 1.5s |
|
Auxiliary time per cell |
≤10s |
|
Sheet-to-separator accuracy (adjacent) |
±0.5mm |
|
Separator edge alignment |
±0.4mm |
|
Sheet-to-sheet alignment |
±0.3mm |
|
Overall stack accuracy |
±0.3mm |
|
Stackable layers |
Within thickness limits |
|
Discharge method |
Cell stack discharge |
|
Machine utilization rate |
≥95% (machine-side) |
|
Qualification rate |
≥98% (machine-side) |
5. Standard Components List
|
No. |
Component |
Brand |
|
1 |
Cylinder |
AIRTAC |
|
2 |
Linear Rail |
DINGHAN/HIWIN |
|
3 |
Ball Screw |
TBI/HIWIN |
|
4 |
PLC |
OMRON |
6. Format Change Parts List
|
No. |
Module |
Part Name |
Unit |
Qty |
Notes |
|
1 |
Electrode box |
Movable panel |
pcs |
8 |
Adjustable range for feeder box, pre-alignment, suction |
|
2 |
Pre-position |
Adjustment plate |
pcs |
4 |
|
|
3 |
Stack arm |
Suction plate |
pcs |
4 |
|
|
4 |
Stack platform |
Compression plate |
pcs |
8 |
|
|
5 |
Cell support plate |
pcs |
2 |
||
|
6 |
Discharge |
Bracket |
pcs |
4 |
|
|
7 |
Tape Unit |
- |
set |
1 |
|
|
8 |
Others |
|
|
|
|
7. Wearing Parts List
|
No. |
Name |
Model |
Manufacturer |
Remarks |
|
1 |
Nozzle |
Custom |
Machined Part |
Daily cleaning required |
|
2 |
Plate 1 |
Custom |
Machined Part |
10-day lead time |
|
3 |
Plate 2 |
Custom |
Machined Part |
10-day lead time |
|
4 |
Vacuum Filter |
VFD-3-06 |
CHELIC |
Weekly cleaning required |
|
5 |
Vacuum Generator |
VAB-0706 |
CHELIC |
Weekly cleaning required |
|
6 |
Foam |
- |
Consumable |
Protects contact surface with cell |
|
7 |
Teflon |
- |
Consumable |
Protects contact surface with electrode |
8. Delivery List
|
No. |
Item |
Qty |
Unit |
Remarks |
|
1 |
Automatic Stacker |
1 |
unit |
Model for acceptance |
|
2 |
Solenoid Valve |
1 |
pcs |
Spare part |
|
3 |
Sensor |
2 |
pcs |
Spare parts |
|
4 |
Tools |
1 |
set |
Tool kit |
|
5 |
Delivery Specification |
1 |
copy |
After signing; return 1 copy |
|
6 |
Quality Inspection Report |
1 |
copy |
Provided on delivery |
|
7 |
User Manual |
1 |
copy |
Provided on delivery |
|
8 |
Spare Parts List |
1 |
set |
Delivered with equipment |
|
9 |
Format Change Materials |
1 |
set |
Delivered with equipment |
|
10 |
Wearing Parts List |
1 |
copy |
Includes models and part numbers |
9. General Machine Specifications & Diagram
|
Item |
Specification |
|
Machine Size |
W3870 x L1950 x H1900mm (final design size) |
|
Weight/Floor Load |
~2200KG; >450Kg/m^2 |
|
Power Supply |
AC220V ±10%, Single Phase, 7KW, 50Hz |
|
Compressed Air |
0.5~0.7MPa, 200L/min, dry air |
|
Temperature/Humidity |
5~35℃； 5~55% |
|
Air/Dust |
No corrosive/toxic gas; no conductive dust |
|
Magnetic/Vibration |
No magnetic field interference or strong vibrations |
Production Assembly Plant
Contact: Lily You
Phone: +86 18650702009
Tel: +86 18650702009
Email: saleskatbattery@gmail.com
Add: No. 988 Xiahe Road, Siming District, Xiamen City
919121614
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