Lithium Pouch Cell Double Layer Extrusion Coating Machine Slot Die Coater

No.

Unit name

Quantity

Notes

1

Automatic unwinding unit

1 set

The unwinding diameter is Max.800mm, with a turret mechanism and an inflatable clamp for unwinding; EPC correction

2

Extrusion coating unit

2 sets

Equipped with high-precision extrusion die head, capable of online flipping and cleaning

3

40m double layer steam heating and drying system

1 set

40 meter oven (5m/section × 8 sections above and below), steam heating, fully through roller oven, with a total length of about 41m

4

Traction unit

2 sets

Rubber pressure roller, low friction cylinder tension control, EPC deviation correction

5

Automatic winding unit

1 set

Winding diameter Max.800mm; Rotary tower mechanism, air expansion shaft winding; EPC correction

6

Walkway system

1 set

(1) The columns and frames are made of carbon steel material;

(2) The stair treads and platform panels are made of SUS201 stainless steel patterned plates, and the guardrails are painted with carbon steel paint - yellow;

(3) One staircase entrance on side A and one staircase entrance on side B;

(4) The guardrail is welded and then fixed by bolts and platforms

7

Two sided furnace climbing guide roller system

1 set

8

Two sided discharge electrode plate guide roller system

1 set

Including 1 set of travel correction and several guide rollers

9

Coating and feeding system (including mixing drum, pump, filter valves, etc.)

2 sets

Precision Screw pump; 100L single-layer slurry barrel, motor stirring

10

Electronic control system

1 set

Omron PLC system

11

NMP concentration detector

8 sets

Positive electrode coating machine configuration

12

Edge ceramic coating feeding system

2 sets

Positive electrode coating machine configuration, designed according to four layers of adhesive coating

13

Double rack type β- Ray surface density detector (longitudinal closed-loop control with Screw pump)

1 set

Configure two sets of display screens, each installed at the coating area of the machine head and tail, to monitor the density of the opposite side

14

CCD alignment detection system (brand: OPT)

2 sets

Installed separately at the heads of the first and second coating machines, with a configuration of 8K high

Project

Positive electrode

Negative electrode

Base material

Aluminum foil

Copper foil

Width (mm)

400-800

400-800

Thickness (µ m)

6-20  (Acceptance using 9um and above foil material)

4-15 (acceptance using 6 μm and above foil material)

Outer diameter (mm)

Max.800

Max.800

Weight (kg)

Max. 1500

Max. 1500

Project

Positive electrode

Negative electrode

Solute

Lithium Iron Phosphate

Graphite

Solvent

NMP

DI-water

Solid content

50-85%

45-60%

Proportion

1.5-3.0

1.0-2.0

Binder

PVDF

SBR

Viscosity (mPa. s, 25C)

5,000-20,000

1,500-8,000

Temperature (℃)

20-28

20-28

Project

Positive electrode

Negative electrode

Single sided wet thickness (µ m)

80-280

60-200

Single sided dry thickness (µ m)

50- 150

50- 150

Single sided dry film weight range (g/㎡)

80~220

50~150

Coating width (mm)

Max.800

Max.800

Project

Mark

Standard (coating speed ≤ 30m/min)

A (trailing)

≤ 1mm (related to slurry properties)

B (abnormal head area)

≤ 5mm (related to slurry properties)

C (tail abnormal area)

≤ 5mm (related to slurry properties)

D (Edge effects area)

≤ 5mm (related to slurry properties)

E (length error)

≤±0.5mm

F (width error)

≤±0.5mm

M (width error)

≤±0.5mm

G1 (thickness error of one side of the head)

- 10~5um  (Related to the characteristics of the slurry)

G2 (Thickness error on one side of the tail)

- 10~5um  (Related to the characteristics of the slurry)

H  (Blank error)

≤±0.5mm

I  (Front and back longitudinal position error)

≤±0.5mm

K  (Lateral position error of front and back sides)

≤±0.5mm

J Single sided density accuracy (excluding areas B, C, and D)

≤±1.5%

Double sided density accuracy (excluding areas B, C, and D)

≤±1.2%

Coating/Intermittent length

L1 (film length)

50~20,000mm

L2 (intermittent length)

6~500mm

L1+L2 (coating+gap length)

L1 +L2 ≥60mm

Specifications

Roller Diamter

Surface treatment

Runout(mm)

Surface roughness

Material

Coating back roller (metal roller)

φ295

Hard chromium plating ≥ 200 μ M

0.001

Ra0.2

40Cr

Guide roller (metal roller)

φ110

Hard oxidation

0.02

Ra0.4

Al

Traction roller (metal roller)

φ200

Hard chromium plating ≥ 100 μ M

0.005

Ra0.4

S45C

Pressure roller (rubber roller)

φ135

Wrapped EPDM rubber

0.1

---

Al or SS400

Specification item

Parallelism(mm)

Between metal rollers (outside the oven)

0.05

Between metal rolls and metal rolls (inside the oven)

0.1

Between metal roller and rubber roller

0.2

Specification item

Levelness (mm/m)

Metal roller (outside the oven)

0.05

Metal roller (inside the oven)

0.1

Rubber roller

0.2

No.

Project

Technical parameter

Notes

1

clamping system

Inflation clamp tightening

2

Roll changing method

Rotary tower automatic roll changing, automatic cutting, tape splicing

Glue pressing roller overlapping and gluing

3

Unwinding diameter

Max Ф 800mm

4

Inflation clamp

6 inches, with a load-bearing capacity of Max.1500Kg

The expansion sleeve of the inflation clamp adopts special wear-resistant rubber

5

Unwinding drive

Servo motor+precision reducer

6

Material barrel

6 inches, length 1100 ± 5mm

Material: ABS or stainless steel

7

Rotating tower device

Rotating tower speed 1r/min

The turret drive adopts a motor+precision return

Flip positioning accuracy: height error H ± 5mm

Drive by rotary reducer, achieve high-precision position control through servo encoder

8

Center height of the turret

1500mm

9

Tension control system

Low friction cylinder+proportional valve control tension, tension sensor feedback adjustment range of 40-300N, tension fluctuation of ± 1% FS

Constant tension control

10

Deviation correction method

Automatic EPC control, stroke ± 50mm, using ultrasonic sensor, gradual speed regulation and deviation correction, accuracy ± 0.1mm

Adaptable transparent substrate guide tape

11

Knife swinging arm mechanism

1) Sawtooth cutting blade, with a cutting life of ≥ 5000 times;

2) There is a pneumatic protective cover in front of the cutting knife, which can be covered when not working to prevent scratching personnel

12

Loading method

AGV

13

Roll diameter measurement

Ultrasonic testing, alarm according to the set coil diameter

14

Takeover platform

1) Adopting double pressure rods, but manually connecting the platform in the form of scratch grooves;

2) There is a rubber strip at the bottom of the pressure rod to avoid direct contact between the metal and the surface of the electrode plate

Bottom configuration dust collection box

15

Running direction

Up or down, only downward when automatically changing rolls

16

Belt routing method

Forward traction, coating, reverse rewinding

17

Polar iron removal

Two sides of the substrate are equipped with magnetic rods, with magnetism ≥ 10000GS

18

control system

1) Set up functional operation buttons and touch screens in the unwinding section. 2) Ultrasonic sensors monitor the coil diameter and have the function of calculating the coil diameter and reminding of material shortage

Can display coating length and machine head control information

19

Safety devices

1) There is guardrail+Light curtain at the turret;

2) Pull rope switch plays an emergency stop role;

3) When there is an opposing switch under the inflation clamp and there is no AGV or hydraulic trolley, the inflation clamp is not allowed to retract

No.

Project

technical parameter

Notes

1

Installation structure method

Thickness 60 mm+overall vertical plate structure, wall panels plated with hard chromium

2

Coating method

A/B series type, continuous coating/gap coating/stripe coating

3

Coating roller (steel roller)

￠295mm, surface plated with hard chromium, circular runout: ≤ 1.0 µ m (micrometer detection), power: DDR motor (Colmorgan)

Surface finish Ra0.2

4

Pinch roller device

Diameter: ￠135mm, material: SS400+EPDM, Shore hardness ≥ 75 degrees; Double cylinder compression, eccentric wheel adjustment for left and right compression force

5

Extrusion head

1. High precision extrusion head (2 sets/line), adjustable lip;

2. The coating width is Max.800mm, and the coating width can be adjusted by replacing the gasket;

3. The mold head is equipped with an online flipping mechanism, which can be used for online flipping and cleaning of the mold head

Parallelism between extrusion die head and coated steel roller ≤ 5 μ m. Lip straightness ≤ 3 μ  m. Flatness ≤ 3 μ m. Attached inspection report

6

Spacer

4 pieces/set, thickness error accuracy ± 2 μm

7

Disposal of leftover materials

Funnel plate for installing leftover materials at the bottom of the mold head

8

Extrusion head base

A: Die base forward and backward drive:

1. Large stroke moving cylinder drive (cylinder with protective cover to prevent slurry pollution); 2. Gap fine adjustment: servo motor action, high-precision displacement sensor measurement, resolution 0.1 μm. Repetitive positioning accuracy ≤ 0.3 μm. Feed time ≤ 10s;

There is an anti-collision design between the extrusion head and the steel roller;

The operation screen page displays the set value and actual value

9

Feed pump

High precision metering feed pump

Japanese War God

10

Turnover bucket

(1) Volume: 100L, made of stainless steel 304, with polished inner and outer surfaces, in a single layer; (2) Equipped with a corrosion-resistant liquid level probe, with 4-speed display (highest, high, low, lowest). When the liquid level of the coating material tank is lower than the lower limit liquid level, the automatic feeding is turned on. If the liquid level does not exceed the lower limit after a few minutes (set on site), the equipment will automatically alarm; (3) Electric stirring, adjustable speed; (4) With visualization window

The slurry bucket is equipped with a visualization window, and the feeding port is anti splashing to prevent the generation of bubbles

11

Filter iron removal

Two stage metal filter+10000GS iron remover - filter the feeding (100 mesh filter element) and Screw pump outlet (150 mesh filter element) of the container

12

Scraping and hole detection

After the coating roller, a light curtain is installed to detect holes caused by scraping of the electrode strip, and timely alarm is given, with manual judgment of whether to stop the machine for processing

13

Adhesive tape level detection

Configure a color code sensor for tape level detection before entering the coating process, and achieve linkage with the coating system to achieve skip coating of the tape level

14

Coating valve

Gap coating valve group

15

Pressure monitoring unit

Pressure inside the extrusion head chamber and pump outlet (pressure

Poor), reflux pressure monitoring, accuracy ≤ 0.001MPa, corrosion-resistant pressure sensor software adds filter replacement reminder function (pressure setting)

Set aside corresponding analog output interfaces for computer collection of pressure data

16

Tension control system

Digital tension adjustment mode/five segment tension control, touch screen setting and monitoring of tension value

17

Die head lateral fine adjustment mechanism

Driven by a servo motor and a screw, it can be closed-loop controlled with a CCD size detection system to ensure alignment of the AB surface

No.

Project

Technical parameter

1

Type

The Screw pump is used for centralized feeding. The dispensing method is to set a special ceramic feed hole on the die head and make a ceramic flow channel on the gasket; Screw pump brand: Nippon Bingshen, 2NBL10F

2

30L slurry bucket

Made of stainless steel 304 with polished inner and outer surfaces; Volume 30L, single layer; Motor stirring, adjustable speed

3

Thickness control

Control by adjusting the opening of the throttle valve

4

Filter

Metal straight through/Y-shaped filter with 100 mesh core

5

Feed pipeline

Stainless steel SUS304 pipe+Teflon pipe

No.

Project

Technical Parameter

Notes

1

Type

Full main transmission, 5 meters per section, with a total of 40 meters for both the upper and lower parts; 0.5 meters each for the front and rear negative pressure chambers

The total length of the oven is approximately 41m above and below each

2

Material quality

Inner liner SUS304 stainless steel; SUS201 stainless steel outer liner; Stainless steel double-layer insulation air duct

3

Main transmission type

Three phase motor frequency conversion control is adopted, and guide rollers are horizontally distributed; The surface of the guide roller is plated with hard chromium, with a diameter of ￠ 110mm

The internal bearings of the oven adopt high-temperature resistant bearings

4

Air nozzle height adjustment

The overall lifting adjustment of the air chamber, with an adjustment amount of ± 20mm

5

Observation window and access door

1) Each section of the oven is equipped with 3 visual observation windows

2) Reserved maintenance and cleaning door on the transmission side of the oven

6

Heating method

Steam heating, steam pressure ≥ 0.7MPa

7

Oven temperature

50~140℃

8

Oven temperature control

(1) Independent PID adjustment for each section of the oven;

(3) Normal working temperature control, overtemperature monitoring alarm protection control, when overtemperature occurs, an audible and visual alarm will appear, and the steam source will be cut off

9

Temperature control accuracy

Display accuracy: ± 1 ℃ (difference in indicated value of temperature control meter);Control accuracy: ≤ ± 3 ℃ (excluding the first and last sections)

10

Surface temperature of the box during operation

The external temperature of the oven is ≤ room temperature+20 ℃ (process temperature ≤ 135 ℃)

Excluding door joints, flange joints, glass windows, and the connection between two ovens

11

Diaphragm blowing method

Up and down blowing, explosion-proof variable frequency motor for air supply; Common heating element for upper and lower air chambers

12

Air volume control

1) Circulating air volume, equipped with 1 circulating fan per section;

2) Adjust the frequency converter to control the air flow according to the process, and set the frequency conversion parameters on the touch screen; 3) Each section of the upper and lower air chambers is adjusted through mechanical valves and independently controlled;

4) The fresh air volume is adjusted by mechanical valves for each section and controlled independently; Fresh air is uniformly supplied by the factory;

5) The exhaust air volume is adjusted by mechanical valves for each section and controlled independently;

13

Pressure monitoring

Equipped with 4 sets of mechanical pressure gauges inside and outside the oven, air nozzles, and before and after filters

14

Fan

1) Circulating fan - power: 11kW; Air volume: Max.11000m3/h; Total pressure: Max.1200Pa

2) Inlet and exhaust fans - configured according to Party A's process and layout

The contact between the fan and the hot air is made of stainless steel material

15

Exhaust air volume

According to the LFP system, with a single surface density of 200g/㎡, a coating width of Max.800mm, a coating speed of Max.40m/min, and a solid content of 55%+, the exhaust air volume of the positive electrode machine is approximately 60000~70000 meters ³/ H (130 ℃ working condition); If the negative electrode has a single surface density of 100g/㎡, a coating width of Max.800mm, a coating speed of Max.40m/min, and a solid content of 50%+, the exhaust air volume of the entire water system negative electrode is about 40000~50000m ³ / H (110 ℃ working condition)

16

Hot air filtration

Configure initial efficiency filter before air intake

17

Explosion proof port

Each oven is equipped with explosion-proof ports

18

Linkage between positive electrode and NMP recovery system

(1) The manufacturer of the NMP recycling system connects the relevant cables and signal wires to the reserved interface of the coating machine, and sends the relevant operating signals and system abnormal signals (shutdown, fault alarm, shutdown) to the coating machine;

(2) The coating machine integrates the common functions of the NMP recycling system (start stop, air volume adjustment, etc.) into the touch screen of the coating machine head, and abnormal signals of the NMP recycling system can be displayed on the touch screen of the coating machine;

(3) When the NMP recycling system fails to start due to a malfunction, the coating machine prompts: The NMP recycling system is malfunctioning and cannot start the coating machine, and outputs a signal to the NMP recycling system;

(4) The coating machine can only be produced and operated when the NMP recycling system is running normally. When the system is abnormal, the coating machine cannot be produced and operated.

19

Oven NMP concentration monitoring

Positive pole configuration NMP concentration detector——

A. When the concentration exceeds 25%, the equipment will give an audible and visual alarm;

B. When the concentration exceeds 50%, the equipment stops running and coating, the circulating fan continues to operate, and the exhaust fan automatically operates at its maximum frequency

20

Drive Motor

A. Circulating fan: three-phase asynchronous motor........... 16 units

B. Roller drive: three-phase asynchronous motor ...............

16 units

No.

Project

Technical parameter

1

Installation structure method

Overall vertical plate installation

2

Traction tension control system

1) Cylinder+proportional valve control tension, tension sensor feedback

2) The adjustable tension range is 40-300N, and the tension fluctuation is ≤ ± 2% FS (during normal operation)

3

Tension partition

Composition of traction roller and pinch roller

4

Traction roller

Diameter Ø 200mm, surface plated with hard chromium

5

Pinch roller

Diameter Ø 135mm, surface coated with EPDM adhesive

6

Travel correction

1. Adopting EPC control, equipped with anti roll edge pressing roller and arc flattening roller at the outlet of the oven

2. EPC control, stroke ± 50mm, using ultrasonic sensor, gradual speed regulation and deviation correction, accuracy ± 0.1mm

7

Traction roller drive

Servo motor+precision reducer

8

Pole flattening mechanism

Flattening of electrode plates using curved rollers

No.

Project

technical parameter

Notes

1

Clamping system

Inflation clamp tightening

2

Roll changing method

Rotary tower automatic roll changing, automatic cutting, tape splicing

Glue pressing roller overlapping and gluing

3

Reel diameter

Max Ф 800mm

4

Inflation clamp

6 inches, with a load-bearing capacity of Max.1500Kg

The expansion sleeve of the inflation clamp adopts special wear-resistant rubber

5

Winding drive

Servo motor+precision reducer

6

Material barrel

Inner diameter 6 inches, length 1100 ± 5mm

Material: ABS or stainless steel

7

Rotating tower device

Rotating tower speed 1r/min

Flip positioning accuracy: height error H ± 5mm

The turret drive is driven by a motor and a precision rotary reducer, and high-precision position control is achieved through servo encoder

8

Center height of the turret

1500mm

9

Tension control system

Low friction cylinder+proportional valve control tension, tension sensor feedback adjustment range of 40-300N, tension fluctuation of ± 1% FS

Taper tension control, adjustable from 0 to 80%

10

Deviation correction method

EPC control, stroke ± 50mm, using ultrasonic sensor, gradual speed regulation and deviation correction, accuracy ± 0.1mm

Adaptable transparent substrate guide tape

11

Knife swinging arm mechanism

1) Sawtooth cutting blade, with a cutting life of ≥ 5000 times;

2) There is a pneumatic protective cover in front of the cutting knife, which can be covered when not working to prevent scratching personnel

12

Discharge method

AGV

13

Roll diameter measurement

Ultrasonic testing, alarm according to the set coil diameter

14

Manual tape receiving platform

1. Adopt double pressure rods, but manually connect the tape platform in the form of scratch grooves;

2. There is a rubber strip at the bottom of the pressure rod to avoid direct contact between the metal and the surface of the electrode plate

15

Running direction

Up or down, only downward when automatically changing rolls

16

Winding alignment

≤±1.0mm

17

Polar iron removal

Two sides of the substrate are equipped with magnetic rods, with magnetism ≥ 10000GS

18

control system

1) Set up functional operation buttons and touch screens in the winding section. 2) Ultrasonic sensors monitor the diameter of the coil and have the function of calculating the diameter and reminding the completion of winding

Can display coating length and machine head control information

19

Safety devices

1) There is guardrail+Light curtain at the turret;

2) Pull rope switch plays an emergency stop role;

3) When there is an opposing switch under the inflation clamp and there is no AGV or hydraulic trolley, the inflation clamp is not allowed to retract

No.

Name

Brand

Brand location

1

PLC

OMRON

Japan

2

servo motor

OMRON/Huichuan/Panasonic/Yaskawa/Kesu

Japan/China

3

Turret motor

OMRON

Japan

4

Direct drive servo motor

Cole Morgan

United States

5

Reducer

Xinbao/Xinliying/Dixoco

Japan/China

6

Head linear guide rail

THK

Japan

7

Head ball screw

THK

Japan

8

bearing

NSK/FAG/ASAHI

Japan/Germany

9

cylinder

SMC/CKD/Airtac

Japan/China

10

Intermittent valve solenoid valve

Festo

Germany

11

Deviation correction control system

Kaiduo or equivalent brand

Germany

12

Tension control system

Boxin or equivalent brand

China

13

touch screen

Kunlun coherent state

China

14

Fiber optic sensor

KEYENCE

Japan

15

Liquid level sensor

Kerui or equivalent brand

Switzerland

16

Color code sensor

Keyence

Japan

17

Slurry pressure sensor

Germany BD

Germany

18

relay

Schneider or equivalent brand

Japan

19

Air switch

Schneider/Chint

France/China

20

inverter

INVETON or equivalent brand

China

21

Temperature controller

OMRON/Yangming

Japan/China

22

Centrifugal fan

Aozhong or equivalent brand

China

23

Steam regulating valve

Azbil

Japan

24

Drain valve

Spirsax or equivalent brand

Britain

25

Shut-off valve

Domestic high-quality

China

26

Coating roller

domestic

China

27

Coating head

Mitsubishi/Panasonic/Domestic high-quality

Japan/China

28

NMP concentration detector

Li Yan/or equivalent brand

Japan

29

Surface density detector

Dacheng/Shuangyuan/Ruiqi/or equivalent brand

China

30

CCD detection system

OPT

China