Roll To Roll Electrode Coating Machine For Lithium Polymer Battery Manufacturing

No.

Item name

Spec

1

Fit system

Coating process for positive and negative plates of lithium iron phosphate, lithium cobalt oxide and lithium manganese oxide

2

Operating substrate thickness

Aluminum foil: 10-30um

Copper foil: 7-30um

3

Design width of roll surface

380 mm

4

Ensure coating width

100~300mm

5

Running speed of equipment and machinery

7m/min

6

Equipment coating speed

Less than 2m / min depends on the drying condition

7

Suitable for slurry viscosity

2000~16000 Cps

8

Single side coating dry thickness range

50-200μm

9

Minimum interval length

≥ 5mm (related to slurry properties)

10

Minimum coating length of multi section

≥ 20 mm (related to slurry properties)

11

Solvent properties

Oily solvent NMP (s.g=1.033, b.p=204℃)

Aqueous solvent H2O/NMP(s.g=1.000, b.p=100℃)

12

Suitable solid content

Positive S. C. 60%±20%

Negative

S. C. 50%±10% (PVDF system)

S. C. 50%±5% (SBR system)

13

Single side coating dry thickness error

±3um

14

Coating method

Double-layer front and back 3-stage unequal interval intermittent transfer coating / second side automatic tracking / continuous transfer coating

15

Substrate running direction

Forward coating, substrate forward and reverse empty foil operation

16

Equipment dimensions

Length, width and height: 8.5*1.5*2.3m

No.

Item name

Spec

1

Roller installation structure

Rack installation

2

Roll surface treatment

Surface oxidation of metal aluminum roller

3

Tension control system

Closed loop automatic control constant tension, tension range 0~50N

4

Correction method

Automatic EPC control, stroke 80mm

5

Coiling method

The material roll is fixed by a 3-inch air shaft; the unwinding is supported by a single shaft

6

Direction of substrate movement

Forward and reverse

7

Base material running speed

5m/min

8

Maximum unwinding diameter

Ф300mm

9

Maximum bearing capacity of inflatable shaft

100Kg

10

Number of unwinding inflatable shafts

1 piece

11

Main drive motor

servo motor

12

Intermittent push

Servo drive

13

Roller surface treatment

The surface of the metal aluminum roller is oxidized, and the circle runout ≤30um

14

Scraper structure

Double-sided comma scraper, diameter Ø80mm;

15

Scraper angle rotation control

Move the handle to rotate

16

Coating roller (steel roller)

Hard chrome plated on the surface, diameter Ø120mm;

17

Back roller (rubber roller)

Diameter Ø120mm, surface covered with imported EPDM glue

18

Trough mixing

Rodless cylinder moves linearly, speed is adjustable

19

Intermittent height adjustment of scraper

Manual adjustment.

20

Single head position

Installation and operation before drying tunnel

No.

Item name

Spec

1

Oven structure

Double heating, arranged up and down

2

Oven length

6 meters (3 meters/section*2)

3

Material

SUS304 stainless steel, inner tank 1.0mm, outer tank 1.2mm

4

Oven guide roller transmission mode

Passive roller drive

5

temperature control

It is divided into the protection control of normal working temperature control and over-temperature monitoring and alarm. When over-temperature, an audible and visual alarm will appear, and the main heating power will be cut off; each section is completely controlled independently

6

Heating method

Electric heating, hot air circulation structure

7

Heating power of single section oven

13.5KW/3m

8

Temperature in the drying tunnel

Max. 150℃, temperature difference in single oven ≤5℃

9

Surface temperature of cabinet during operation

≤45℃

10

Blowing method

The upper and lower air blows, and the upper and lower air volumes are separately controlled by valves; the upper and lower air chambers share the heating body

11

Each section of exhaust air volume control

Air volume of circulating fan: 3000m3 / h (single section)

The exhaust air volume is 4000 m3 / h

12

Nozzle structure

The blowing direction is 30 degrees to the horizontal, and the slot of the air nozzle is slotted with a special mold

13

Heating control

Solid state relay

14

Fan material

SUS304 stainless steel

15

Solvent recovery system

Optional

16

NMP solvent concentration alarm

Optional(add $4390)

No.

Item name

Spec

1

Tension 

1 set is installed in front of the traction roller, closed loop automatic control constant tension, tension range 0~50N, servo control.

2

Installation structure

Fangtong frame welding

3

Number of winding shafts

1 piece, single-arm winding

No.

Item name

Spec

1

Main control system

Touch screen, PLC, module, servo system

2

Operation mode

Manual, automatic, emergency stop; the whole machine can be operated before and after

3

Coating, intermittent length setting range

Coating length 20.0～3200.0mm

Intermittent length 5.0～3200.0mm

4

Alarm situation

When the device fails, the touch screen will display the corresponding correction screen

5

Counting function

Production quantity/length

6

Head and tail thickness adjustment method

The program controls the speed ratio of steel roller and rubber roller;