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Double Sides Extrusion Slot Die Coating Machine

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  • Contact Person : Louis Yang
  • Email : Louis@lithmachine.com
  • Address : No. 5 Nanshan Road, Huli District, Xiamen City, Fujian Province, China
Double Sides Extrusion Slot Die Coating Machine

Double Sides Extrusion Slot Die Coating Machine

  • ItemNo :

    LITH-XHPT-7564S-MM
  • MOQ :

    1
  • Compliance:

    CE
  • Warranty:

    2 years
  • Delivery Time:

    5 days
  • Email :

    Louis@lithmachine.com
  • Product Details

Double Sides Extrusion Slot Die Coating Machine 




1. Brief Introduction of Whole Machine Structure

1.1 Equipment Composition:

 Single axis unwinding mechanism

 First side coating mechanism

 Double layer oven mechanism

 Traction mechanism

 Second side coating mechanism

 Traction mechanism

 Double axis winding mechanism

 Precision feeding system (two sets)

 Electrical control system

1.2 Technological Process:

The base material of the polar plate placed on the unwinding device enters the unwinding tension system after automatic correction, and enters the coating head after adjusting the unwinding tension. The polar plate is coated according to the setting procedure of the coating system; The coated wet electrode piece enters the lower layer oven and is dried by hot air; The pole piece after drying is rectified by the rectifying system, and then the tension is adjusted by the tension system. At the same time, the traction speed is controlled to synchronize with the second coating speed. After the pole piece is coated on the reverse side by the second coating head, it enters the upper oven for drying by hot air. After the pole piece after drying is rectified by the second traction unit and adjusted by the tension, it is wound by the winding device.


2. Technical Parameters of Battery Electrode

2.1 Suitable substrate thickness: aluminum foil: 0.010-0.030mm, copper foil: 0.006-0.030mm;

2.2 Suitable substrate width: aluminum foil: 300-660mm, copper foil: 300-660mm;

2.3 Pole piece aluminum/copper foil coil size: core aperture 3 inches;

2.4 Technical requirements for coating winding and unwinding: coil diameter ≤ φ 500mm, core diameter 3 inches;

2.5 Coating slurry: after the slurry is fully stirred and filtered to meet the requirements of battery coating, it is filled in a running tank and stirred continuously to maintain the coating performance of the slurry

2.6 Single side coating dry thickness (excluding substrate): 50-150μm; Maximum wet coating thickness: 100-500μm (when the viscosity of slurry is allowed)


3. Main Performance Parameters

NO.

Project

Parameter

Remarks

1

Normal Speed of Coating

≤24m/min

Normal coating speed is related to material system, coating thickness and solid content

2

Coating Speed Accuracy Error

≤0.1m/min

 

3

Coating Width

≤650mm

 

4

Coating Length (Single Piece)

≤2500mm

 

5

Coating Machine Speed

40m/min

 

6

Overall Length of Coater

≤43m

It has a great relationship with configuration

7

Equipment Air Pressure

0.60.8 MPa

Dry and free of impurities

8

Single Side Coating Dry Thickness Error

Li(NiCoMn)O2,

LiFePO4,

Cobalt±2μ

(Mn±2μ)

Edge, head and tail 8mm are excluded

9

Double Side Coating Dry Thickness Error

Li(NiCoMn)O2,

LiFePO4,

Cobalt±3.0μm

(Mn±3μ)

 

10

Single Side Weight Error in Single Chip

±1.5%

Measurement method

(Fig. B)

11

Minimum Coating Length

20mm

 

12

Minimum Length Dimension of Single Pole Piece

50mm

(One coating plus gap)

13

Minimum Length Dimension of Single Double Segment Pole Piece

100mm

(Two coatings plus gap)

14

Single Side Thickness Error of Electrode Head and Tail

-10μm~ +5μm

 

15

Interval Coating Minimum Gap

10mm

With the coating speed, the faster the speed, the greater the minimum gap.

16

Accuracy Error of Coating Length

±1.0 mm

Within 3000mm

17

Overlap Error of Front and Back Coating

±0.5 mm

 

18

Overlap Error of Front and Back Coating Edge

±0.5 mm

 

19

Edge Uniformity Error of Winding

± 1 mm

(start calculation after 5 turns)

Φ 500mm roll











PACKAGE:

     1 Standard exported package: Internal anticollision protection, external export wooden box packaging.

     2 Shipping by express, by air, by sea according to customers' requirements to find the most suitable way.

     3 Responsible for the damage during the shipping process, will change the damage part for you for free.

 

DELIVERY TIME:15-20 days after confirming order,detail delivery date should be decided according to production season and order quantity