Automatic Stacking Machine for Lithium Battery Electrode and Separator Stacking

• Customization: Available
• Production Scope: Parts Production Line
• Automation: Automatic, Automation
• Model NO.: JS-DPJ300-D
• After-sales Service: Free Consult for Whole Life
• Transmission Type: Flexible
• Automatic Production Line: Assembly
• Certification: ISO, CE, SGS, TUV
• Flexible Production: Intelligent Manufacturing
• Rhythm: Flow Production Line
• Warranty: Free Consult for Whole Life
• Transport Package: Wood Case
• Specification: L3200 x W1700 x H2000mm
• Trademark: Chipbest
• Origin: China

Product Description

Automatic Stacking Machine for Lithium Battery Electrode and Separator Stacking

Device function:

Automatic Stacking Machine for Pouch Cell Battery Equipments Production Line is mainly used for zigzag lamination of square lithium-ion power battery cells.

Refer Picture For Lithium Electric Z Shape Laminating Machine:

Workflow:
The diaphragm is automatically unwound, and introduced into the lamination table through the roller with constant tension. The lamination table drives the diaphragm to move back and forth. The suction cups take out the positive and negative plates from the feed tank respectively. After CCD positioning correction, they are placed on the lamination table.Once it achieves a pre-set number of layers, the diaphragm is thermally cut off (leaving a small amount of tailings). And then the cells are transferred to the gluing mechanism by the manipulator; After that, the glued cells will be transferred to the stacking platform by the manipulator.

The process flow chart is as follows:


Equipment features:
1.Diaphragm: active unwinding; tension control; diaphragm positioning correction; diaphragm de-static; diaphragm alignment accuracy from sides: ±0.3mm (head and tail alignment ±0.5mm);
2.High precision: Through precise positioning process for the pole pieces, the overall lamination accuracy for each piece is guaranteed to reach ±0.3mm (alignment accuracy for adjacent pole pieces: ±0.2mm);Alignment accuracy between pole piece and diaphragm: center deviation ±0.2mm.
3.High efficiency: lamination speed can reach 0.5-0.6s/piece (for double station, excluding auxiliary time 13s);
4.Anti-dust protection: an anti-dust protection mechanism is installed in the material box and at a pre-positioning location;
5.Reliability: The equipment module is fixed with positioning pins;
6.Excess-cell/ Less-cell Fool-proof Mechanism:once an emergency situation with excess-cell/ less-cell loading happens, the system will accurately detect and alarm through the ultrasonic sensor meanwhile activate the emergency stop function automatically, which can effectively prevent more than required cells from being stacked into the battery.
7.Incoming pole pieces detection: The four corners of the pole piece and the pole lugs are detected by CCD to identify missing/folded corners.When any NG pole piece is identified, the system will automatically alarm and stop.;
8.The material box for pole pieces, the lamination table and the suction piece are all equipped with dust removal devices, and all dust is centrally treated;

Equipment parameters:

Item	Specification
Dimensions	L3200 x W1700 x H2000mm (dimensions are for your reference only, subject to specific design)
Weight/Load	About 4000KG; > 500Kg/M­^2
Power Supply	Voltage: AC380V±10%; Three-phase; Power: 26KVA; Frequency: 50Hz
Compressed Air	Pressure: 0.5~0.7MPa (5kgf~7kgf/cm 2); usage: 200L/min; dry air
Temperature/ Humidity	5~35ºC; 5~55%
/Air/Dust	Free of salt, toxic and corrosive gases and conductive dust
Vacuum	-85 to -90KPa; 5L/sec
Magnetic Field and Vibration	It should not affect magnetic field of the device; there should be no shock and noticeable vibration
Reference Diagram:

Standard composition:

Serial#	Part Name	/Quantity/Set	Directions
1	Pole Piece Box	6	Special plug-in material box; two sets of positive and negative poles (2 sets are prepared), adjustable within the range;
2	Pole Piece Feeding Auxiliary Mechanism	4	,,; Ion wind de-static device, dust collector, anti-multi-chip device;
3	Pole piece Feeding Jacking Mechanism	4	, Ensure that the manipulator can reliably absorb the pole pieces, and automatically stop and alarm when there is no material.
4	Diaphragm Tension Mechanism	2	, Diaphragm unwinds automatically with constant tension
5	Diaphragm Correction System	2	,; Unwinding and location correcting to ensure lamination accuracy;
6	Pre-positioning Module	4	CCD,/,NG,; CCD precisely corrects the pole piece's position, detects any potential issue of corner missing/folded from the four corners of the pole piece and the pole lug, supports identification and judgment and alarm for NG parts, and is equipped with a dust collector;
7	Excess-chip Inspection	4	,/; Ultrasonic inspect to prevent excess/less stacking of cells;
8	Lamination Manipulator	4	,; The servo motor drives with the module to ensure the high-speed and stable grip and release of the pole piece by the manipulator;
9	Feeding Sucker Mechanism	8	+ Two sets of vacuum nozzle type + suction plate type
10	Lamination Table Diaphragm Correction	2	+ Fiber detection + stepper motor drives the deviation correction table to reciprocate to the detection position
11	Lamination Table	2	, Servo motor drives the lamination platform to move and lift, and the servo and cam linkage mechanism work together to drive the jaws to achieve high-speed lamination.
12	Robotic Gripping Module	1	The robot automatically transfer cells
13	Diaphragm Cut-off Mechanism	2	2 Hot cutter mechanism x 2 sets
14	Tape Side Sticking Mechanism	1	, Adhesive on all sides, gluing position and quantity can be set
15	Automatic Unloading	1	,180mm The cells are automatically unloaded to the receiving& stacking workstation, and the stacking height is about 180mm
16	Electrical Operating System	1	,,, Touch screen operation, with emergency stop, reset, power switch and other buttons
17	Control System	1	,,, Electrical appliances, gas circuits, etc. are installed inside the equipment, saving space and facilitating maintenance
18	Frame	2	,:300C Square prop stand, color: peacock blue 300C
19	Anti-dust Cover	2	1,,; aluminum alloy and plexiglass cover x 1, with interlock switch and emergency switch;
20	Vacuuming Mechanism	1	,, Blower to clean dust, pre-positioning, material feeding box equipped with vacuuming system
21	Vacuum System	1	() Equipped with vacuum generator (customer provides compressed air source)
22	Cell Fixture	1	1, 1 set of fixtures, customized according to the requirements of customers
23	Diaphragm Anti-static Treatment	2	Eliminate static electricity on the surface of the diaphragm

Material Specifications                                            

Specification Material	Incoming	Length	Width	um Thickness	Inside Diameter	Maximum Outer Diameter
Positive Electrode	Sheet Material	150-290( Lug/tab not included)	80-180	70-300	--	--
Negative Electrode	Sheet Material	150-290(Lug/tab not included)	80-180	70-300	--	--
Positive Lug/Tab	--	10-20	10-40	12-30	--	--
Negative Lug/Tab	--	10-20	10-40	8-20	--	--
Diaphragm	Roll Stock	--	100-250	16-45	φ76.2	Φ280
Adhesive Tape		30-50	10-20	10-80	φ76.2	φ150

Description:
1.The length of the pole piece indicates the size of the pole piece in the direction of the pole ear, excluding the length of the pole piece;  
2.The pole piece has no visible powder dropping phenomenon, no obvious wave edge, and the burr length in the vertical  direction of each pole piece is less than 15um; the die-cutting error is less than 0.2mm
3.There is no obvious warpage and deformation of the incoming pole piece, and there is no visible unnecessary sticking together of the incoming pole piece;
4.Diaphragm serpentine bending error: ±0.2mm/1000mm.

 Cell Specifications (Compatible with same-side or different-side tab cells)                                               

Item	Specification	Schematic Diagram of Battery Cell
L Cell Length	150-290
W Cell Width	80-180
T Cell Thickness	4-20
L1 Exposed Tabs L1	10-20
Tab Direction	Same side
W1/W2 Tab Width W1/W2	10-30

 

Acceptance model (provided by the customer)

Specification Material	Length	Width	um Thickness	Tab Length	Tab Width	Layers
Positive Electrode
Negative Electrode
Diaphragm	--			--	--	--
Battery Cell	--			--	--	--

 

 

Acceptance process drawing (provided by the customer)
                                           

Schematic diagram of cell stacking	Schematic diagram of sticking

•  

Technical Parameter

Item	Acceptance process technical parameters
Lamination Time per Unit	0.5-0.6S/(,) 0.5-0.6S/piece (for dual workstation, related to the size of the pole piece)
Single Cell Auxiliary Time	≤13S
Pole Piece and Diaphragm Adjacent Accuracy	±0.2mm. Center deviation ±0.2mm.
Diaphragm End Face Alignment Accuracy	±0.3mm(±0.5mm); ±0.3mm (head-to-tail alignment ±0.5mm);
Adjacent Pole Piece Alignment accuracy	±0.2mm
Pole Piece Overall Alignment accuracy	±0.3mm
Diaphragm Tension	0~0.5kgf
Positive and Negative Positioning	,,0-20mm,±0.05mm It can realize vertical and horizontal numerical control adjustment, the adjustment range is 0-20mm, and the accuracy is ±0.05mm
Positioning Table Detection	,,,CCD,,NG Ultrasonic sensor detects pole pieces to prevent excess or less pieces, alarm and stop automatically
Lamination Layer #	,<=41() It can be set within the thickness adaptation range. The total number of sheets is less than or equal to 41 sheets, which affects the production capacity of the equipment (the gluing process cannot keep up with the lamination process at speed)
Material Feeding	(≥9), Side sticking around (≥9 layers of glue will affect equipment capacity), cell stacking
Utilization Rate	242%() The 24-hour equipment failure rate is less than 2% (failures caused by equipment only)
Qualified Rate  (except for bad incoming materials)	99.2%  More than 99.2% (except for bad incoming materials)

Workshop :