With the gradual introduction of plans by car companies to stop selling fuel vehicles and the successive implementation of carbon neutral policies in various countries, new energy vehicles have gradually become the protagonists of the current automobile development plans of various countries.

The penetration rate of new energy vehicles continues to increase, and the demand for power batteries is also rising. With the advantages of high energy density and high power density, the application of power lithium batteries has rapidly gained favor and developed rapidly in the field of electric vehicles. Today, as the "king" of the current power battery technology route, lithium battery is called "new oil" by Tesla CEO Musk.

XTIOT has successful industrial code reading application experience in lithium battery production.

The production process of lithium batteries is complicated. From the first-stage manufacturing process, to the middle-stage cell synthesis process, and then to the latter-stage formation and packaging process, the whole process production involves more than 50 processes.

As a leading manufacturer of barcode reading in China, XTIOT is based on its rich experience in the application of barcode traceability in the manufacturing process in the past. In the lithium battery production process, XTIOT industrial DPM code reading products enable the application of barcode reading for finished lithium battery production.

Application Description

Based on the different application requirements of the battery, the structural form of the finished battery is also different, and the battery structure is determined by the cell manufacturing process.

At present, there are two main cell manufacturing processes for power lithium-ion batteries: winding and stacking. The corresponding battery structures are mainly cylindrical, square, and soft-packed. Cylindrical and square batteries are mainly produced by winding processes, and soft-packed batteries The lamination process is mainly used.

After the encapsulation and formation process, a basic battery is produced, and then a large number of finished batteries need to be coded and put into a pallet for storage. In order to facilitate product traceability, code reading is required for product data collection before storage.

Application challenges

Square battery cover metal code reading difficulty

Laser radium engraving and coding, high reflection, low contrast;

There is a huge difference in image quality from different angles. In the process of scanning barcodes in the entire warehouse, the handheld scanner needs to be compatible with barcode scanning from the easier vertical angle to the more difficult to read barcodes at various oblique angles;

Considering that a large number of finished products are put into storage every day, it is necessary to have ultra-fast reading speed while stably scanning the code to ensure operation efficiency.

Soft Pack Battery Ink Inkjet Code Scanning

The surface of the pouch battery package is made of aluminum-plastic film, which has strong reflective properties, and requires a scanner with good reflective processing capabilities;

The coding effect of each battery is affected by ink diffusion, insufficient ink, and deformation, and the barcode reading is also greatly disturbed, requiring a scanner with strong algorithm correction capabilities;

The packaging material is soft, and the surface will have different degrees of wrinkles, which will affect the reading performance when scanning the code. The scanner needs to have strong anti-distortion and irregular barcode reading capabilities;

Considering the operation efficiency, the scanning of the entire disk needs to be able to scan and read immediately, and there should be no operation pause caused by a single NG, which will affect the operation efficiency.

Applications and products

In order to cope with the more demanding application of DPM barcode reading in the storage of finished lithium batteries, XTIOT optimized and upgraded its technical solutions and product performance.

01 megapixel sensor

For the more stringent scanning requirements of the manufacturing industry, the XTIOT industrial-grade DPM code scanning gun uses a mega-pixel image sensor with Ultra-high resolution, capable of reading barcodes as small as 3 mil on the surface of pouch batteries and barcodes of different sizes.

02 DPM code algorithm upgrade

The newly upgraded new-generation DPM code reading algorithm is based on the deep learning algorithm of XTIOT's self-built tens of thousands of manufacturing special barcode sample libraries, which can provide services including laser etching, ink marking, chemical etching, inkjet molding, coating, thermal Excellent reading ability of manufacturing special barcodes including spraying and stippling.

03 Optical lighting system upgrade

Aiming at the difficulties of high reflection and low contrast on the surface of metal DPM, XTIOT optimizes the light source design in terms of optical lighting, and adopts a high-brightness lighting source for off-site automatic lighting to avoid the reflection phenomenon caused by the same plane light emission. Under the control of the algorithm, it can provide Auto-lit lighting effects for scanning barcodes on virtually any metal surface, including reflections, irregularities, curved surfaces, and high and low contrast situations.

04  Dual-core MCU

In order to improve the decoding speed and scanning efficiency, XTIOT upgraded the previous single-core MCU to a dual-core MCU to achieve faster computing power, improve image capture, recognition and decoding speed, and ensure efficient storage and scanning.

05 Super large tilt angle

Considering the difficulty of scanning barcodes with tilted angles, XTIOT has increased the allowable scanning angle of the scanner to 70 degrees left and right, and 75 degrees front and back, which satisfies the high-efficiency, free-wheeling and accurate scanning experience of front-line workers.