Automatic Single Workstation Stacking Machine for Lithium Battery Electrode Making

I. Function Overview

The separator is actively unwound and fed into the stacking platform through a tension control mechanism. The platform then moves the separator back and forth in a reciprocal motion, preparing the surface for electrode placement. Cathode and anode sheets are stacked in alternating layers: two robotic suction arms retrieve the cathode and anode sheets separately from the two left-side material boxes, position them with precision, and stack them onto the platform. Upon completion of stacking, the separator is cut to size. A mechanical arm transfers the cell to the taping station, where taping is applied automatically—all while the stacking process for the next cell gets underway simultaneously.

II. Basic Parameters

1. Dimensions: 1940mm (L) × 1650mm (D) × 2100mm (H) (subject to actual design)

2. Power supply: 220V 50Hz

3. Air source: 0.5 MPa

4. No corrosive gases, liquids, or explosive gases

5. Color: Supplier standard (International Warm Gray 1C)

 

III. Technical Parameters

1. Applicable Cell Size: Length L135–190mm, Width W80–150mm, Thickness H3.5–20mm; Tab Length Q ≤25mm

2. Machine Speed: 1.4–1.6s/pcs

3. Electrode-to-Separator Alignment Accuracy: Center deviation ±0.25mm

4. Dust Protection: Effective dust-proof mechanisms installed on material box and pre-alignment areas

5. Reliability: High-precision, frequently moving modules are secured with positioning pins

6. Multi-sheet Missing Protection: Missing sheet detection; anti-multi-sheet mechanism; ultrasonic multi-sheet detection effectively prevents multiple sheets from being stacked into the cell

7. Tab Defect Detection: Detects tab bending, breaking, and edge defects to prevent defective sheets from entering the cell

 

Cell Specifications

Item	Spec		Remarks
Cell Length (L)	135–190
Cell Width (W)	80–150
Cell Thickness (T)	3.5–20
Tab Exposure (L1)	10–25
Tab Direction	Opposite Side
When Tab Opposed	L+L1 ≤ 180

 

IV. Standard Composition

No.	Component Name	Qty	Description
1	Material Box Auto Feeder	2	Special insert-style box; two each for cathode/anode; adjustable range
2	Electrode Sheet Feeder Aid	2	Brush, vibration, air-blow, and dust collection; anti-multi-sheet
3	Sheet Lifting Mechanism	2	Ensures reliable sheet pickup; alarms when out of material
4	Separator Tension Unit	1	Active unwinding with constant tension
4.1	Separator EPC System	1	Web guiding for unwinding
5	Mechanical Pre-Alignment	2	Mechanical precision alignment; dust collection; vacuum system
5.1	Multi-Sheet Detection	2	Ultrasonic thickness detection to prevent multiple sheet stacking
6	Stacking Robot Arm	2	Servo-driven for reliable stacking; servo-driven material pickup
7	Pickup Suction Mechanism	4	Two sets of vacuum nozzles and suction plates
8	Stacking Platform	1	Servo-driven lift and shift using precision ball screw
9	Separator Blowing Unit	1	Blows separator to opposite side
10	Cell Transfer Gripper	1	Transfers cell automatically
11	Separator Cutting Unit	1	Hot cutting blade; cuts separator to set length
12	Side Taping Unit	1	Applies tape around all four sides including tab region; programmable
13	Auto Discharge Unit	1	Auto cell stacking for batch removal
14	Electrical Operation System	1	Touchscreen control with emergency stop, power switch, etc.
15	Control System	1	Electrical and pneumatic systems integrated inside equipment
16	Machine Frame	2	Color: PC White
17	Dustproof Enclosure	1	Aluminum-glass cover with interlock switch and emergency stop
18	Dust Collection Unit	1	Blower-type suction; applied to pre-alignment and material box
19	Vacuum System	—	Vacuum generator

 

V. Main Component Configuration

1. Standard Parts List

No.	Name	Brand	Remarks
1	Cylinder	AIRTAC
2	Linear Guide Rail	DINHAN / HIWIN
3	Ball Screw	TBI / HIWIN
4	PLC	OMRON

 

2. Changeover Parts List

No.	Assembly	Part	Unit	Qty	Remarks
1	Electrode Box	Adjustable Plate	pcs	4	Adjustable range for material box, pre-alignment, suction cup
2	Pre-Alignment	Alignment Plate	pcs	2
3	Stacking Robot Arm	Suction Plate	pcs	2
4	Stacking Platform	Stacking Press Plate	pcs	4
5		Cell Support Plate	pcs	1
6	Discharge Unit	Discharge Support	pcs	2
7	Taping Mechanism	—	set	1
8	Others	—	—	—

 

3. Wearing Parts List

No.	Name	Model/Spec	Manufacturer	Remarks
1	Suction Nozzle	Custom	Machined	Clean daily
2	Press Plate 1	Custom	Machined	10-day lead time
3	Press Plate 2	Custom	Machined	10-day lead time
4	Vacuum Filter	VFD-3-06	CHELIC	Clean weekly
5	Vacuum Generator	VAB-0706	CHELIC	Clean weekly
6	Foam	—	—	Protective layer for cell contact
7	Teflon	—	—	Protective layer for electrode contact

 

4. Delivery List

No.	Item	Qty	Unit	Remarks
1	Automatic Stacking Machine	1	Set	Acceptance Model
2	Solenoid Valve	1	Piece	Spare
3	Sensor	2	Piece	Spare
4	Tool Kit	1	Set	Tools
5	Technical Specification Sheet	1	Copy	Provided after contract signing
6	Shipment QC Report	1	Copy	Provided at delivery
7	User Manual	1	Copy	Provided at delivery
8	Spare Parts (and List)	1	Set	Provided at delivery
9	Changeover Parts (and List)	1	Set	Provided at delivery
10	Wearing Parts List	1	Copy	Includes part numbers and drawings
11	Wiring Diagram	1	Set	Provided after 90% payment and acceptance