Process overview of lithium battery

Electrode production

1 coating thickness control

Electrode coating: continuous and uniform coating with accuracy up to micron level

Sike solution: displacement sensor od5000

Features & benefits:

The measurement speed is high, and the frequency can reach 80 kHz;

The repeatability is as low as 0.01 μ M.

2 edge correction

Winding machine: if the position of the pole piece is not accurate, the quality of the battery cell will be reduced and the energy capacity of the battery will be weakened.

Sike solutions:

Displacement correction sensor OL1

Deviation correction sensor as30

Fiber optic sensors wll190t and ll3-ts40

Features & benefits:

Reliable precision and stable performance;

With a variety of different precision correction sensor series, the overall cost performance of the scheme is high.

3 test tape

Winding machine: it is required to detect different colors of tape (translucent or full transparent), position and cut the battery pole piece.

Sike solutions:

Color code sensor KTS prime

Color sensor CSM

Color coded optical fiber ktl180

Gloss sensor

Features & benefits:

It can be distinguished from electrode coating, copper foil or aluminum foil stably by the color or contrast of tape. ;

Sike's color code / color sensor can support a response frequency of up to 70kHz, realizing efficient identification and production..

Battery cell manufacturing

1 presence detection

Mini photoelectric sensor g2f

Features & benefits:

Mini shape is suitable for small space;

Compared with the optical fiber sensor, it does not need to use additional components, which is conducive to reducing the total cost and the cost of call and installation.

2 pole piece material hole damage detection

Automatic measuring grating

Features & benefits:

In the technological process, it can detect the broken or damaged state of the pole piece in time;

Without expensive camera solutions, the highest output quality can be achieved by detecting holes in the foil in the process flow.

It is not interfered by ambient light, stable in performance and easy to use.

3 single and double sheet detection

Stacking in boxes: during the stacking process, it is necessary to detect the single and double sheets of the picked pole pieces.

Sike solutions:

Proximity sensor IDF

Ultrasonic sensor ud18

Features & benefits:

Whether the clamp grabs multiple electrodes and separators or not, reliable detection can be realized. ;

Simple teaching of electrode materials, saving process time

Battery module assembly

1 Identification of electric core

Code reader

Features & benefits:

Compact design, resolution up to 1MP, suitable for both large size FOV and small size mode;

The automatic parameter conversion function can improve the flexibility and stability of decoding.

2 assembly loading identification

RFID

Features & benefits:

UHF technology can ensure detection stability: support single item identification and batch reading;

Production process identification can be realized in multiple production sites.

3 check the battery module

During the assembly process, detection, position detection and surface state detection (scratch, glue...) are required

Sike solutions:

3D vision sensor trispector

3D vision sensor ranger3

Features & benefits:

The most cost-effective configurable 3D inspection solution: trispector;

Ranger3: the fastest 3D camera on the market, with a speed of 46khz, supports new inspection tasks within the product line.

Security solutions for the battery industry

Effective solutions for battery industry

Source: Guangzhou Xike sensor Co., Ltd