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/18650 21700 26650 32700 Cylindrical Cell Automatic Electrode Winding Machine

18650 21700 26650 32700 Cylindrical Cell Automatic Electrode Winding Machine

Wechat:17720812054

Whatsapp:+86 13174506016

Email:David@batterymaking.com


  • Item NO.:

    TMAX-LPW-21/70-C
  • Payment:

    L/C,T/T,Western Union, Paypal
  • Product Origin:

    China
  • Shipping Port:

    Xiamen
  • Lead Time:

    5 days
  • Certificate:

    CE ROHS Certificate
  • Product Detail

18650 21700 26650 32700 Cylindrical Cell Automatic Electrode Winding Machine

 


Equipment Introduction

This equipment integrates the production and winding functions of lithium battery cells; At the welding tab of the positive and negative electrode pieces of the battery to be tested, the tab shall be cut in the production process (the length of the cutting tab can be adjusted), and the tab shall be welded by the ultrasonic welder and pasted with protective tape. After the production process is completed, the equipment will automatically wind the electrode and separator, and paste the termination glue. The wound jelly roll is transmitted through the transfer mechanism. The transfer process includes such mechanisms as cell hot hole, short circuit detection and rejection of defective products to prevent defective products from flowing into the next process.


Specifications of materials for operation:

 

NO. of hanging shafts

Width

(mm)

Thickness

(μ)

Length

(mm)

Material Max

External Diameter

Internal Diameter

Cathode Electrode

2

55-63

80300

600-1700

φ500

φ76.2

Anode Electrode

2

57-64

80250

600-1700

φ500

φ76.2

Separator

2

58-66

1425

-----

Φ300

φ76.2

Cathode Tab

2

3-5

80150

50-70

Φ300

Φ80

Anode Tab

2

3-5

80120

50-70

Φ300

Φ80

Cathode Tab Tape

4

1020

2080

55-65

Φ200

φ76.2

Anode Tab Tape

4

1020

2080

55-66

Φ200

φ76.2

Cathode covering glue

2

1015

20100

9-12

Φ200

φ76.2

Termination Tape

2

15-60

 2070

---

φ200

φ76.2

 

*The above technical parameters can be changed according to customer requirements.


Specification of ultrasonic spot welding:

Brand and quantity of ultrasonic welding machine

Cathode: 2 sets

Anode: 2 sets

2) Welding spot requirements (can be adjusted according to customer requirements)

3mm for cathode × 25mm strip; 3mm anode × 4mm point shape, 4 points with a total length of 25mm;

3) Service life of welding head

Cathode welding head ≥ 1million times (double-sided);

Anode welding head ≥ 200000 times (double-sided);

The cathode and anode welding heads have two welding surfaces respectively.

Requirements for welding points: the welding mark is clear, and the welding tension in the length direction of the tab is ≥ 20N.

At least 2/3 of the positive pole is adhered with foil flesh, and at least three points of the negative pole are adhered with foil flesh.

4) Number of tabs

Cathode 1-2 tabsAnode 1-2 tabs;

2. Electrode pasting protective adhesive process

(can be adjusted according to customer requirements)

1) Two groups of positive electrodes are pasted;

2) Negative electrode 2 groups of adhesive.

4. Needle specifications

Diameter of winding needle: 3.5mm.

The acceptance is based on 21700 battery (end of separator).

Other specifications such as 4.0 can be replaced, and corresponding specifications shall be replaced.


Equipment capacity:

Separator outsourcing production speed ≥ 22 ppm

1500mm long electrode piece (cathode tabs, 2 groups of opposite glues; anode 1 or 2 tabs, 1 or 2 groups of opposite glues, diaphragm ending method, with positive pole bipolar tabs welding)

Note: "incoming materials of pole piece and diaphragm must meet the requirements of raw materials for machine operation"

Copper foil outsourcing production speed ≥ 20 ppm

1500mm long electrode piece (cathode 2 tabs, 2 groups of adhesive;anode 1 or 2 tabs, 1 group or 2 groups of adhesive, copper foil ending method, with positive pole bipolar tabs welding)

Note: "incoming materials of pole piece and separator must meet the requirements of raw materials for machine operation"

2. Planting rate ≥ 96%

Production rate = actual production quantity / (equipment production speed * actual operation time).

3. Yield ≥ 99%

Yield = quantity of good products / actual production quantity (except for material defects, positive and negative plates shall be removed along with the single roll of diaphragm during equipment production, and shall not be recorded as defective products)



  

   

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