GZTECH Won the Annual Excellent Solution Award of Lithium Battery Smart Manufacturing

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On March 16, 2023, the 7th Annual OFweek Lithium Battery & Electric Vehicle Industry Conference and the 2022 Vico Cup Lithium Industry Annual Awards Ceremony were grandly opened in Shenzhen. With years of deep cultivation in the lithium field, GZTECH has continuously combined laser technology with lithium smart manufacturing to find the best solution, gaining recognition from the market and industry, and winning the "Vico Cup OFweek 2022 Annual Outstanding Solution Award of Lithium Smart Manufacturing ".

Vico Cup OFweek 2022 Annual Outstanding Solution Award of Lithium Smart Manufacturing

GZTECH won the "Vico Cup OFwweek 2022 Annual Outstanding Solution Award of Lithium Smart Manufacturing"

Vico Cup OFwweek 2022 Annual Outstanding Solution Award of Lithium Smart Manufacturing

"Vico Cup OFwweek 2022 Annual Outstanding Solution Award of Lithium Smart Manufacturing" awards site (the first from the left is GZTECH)

 

GZTECH's laser products have been applied in the process of lithium smart manufacturing, from the front-end, middle production process, to the post production, and even in battery recycling, achieving full-process penetration.

Process application flow chart of GZTECH laser products in the field of lithium battery smart  manufacturing

Process application flow chart of GZTECH laser products in the field of lithium battery smart  manufacturing

 

Laser high-speed cutting

The application of laser technology in the field of battery tab cutting has become an industry standard. However, traditional battery tab cutting only stays at a speed of 60-80m/min, which cannot meet the high production capacity requirements of current power lines. The high-power 500W MOPA pulse fiber laser developed by GZTECH can be directly upgraded and transformed on the original machine with the least amount of machine modification and minimal cost, doubling the existing production capacity.

 high-power 500W MOPA pulse fiber laser

Pole piece window cutting/continuous non-destructive cleaning

In the field of lithium battery manufacturing, increasing speed and efficiency is always the goal pursued by enterprises. The battery pole plate non-destructive laser cleaning process can reduce the tedious process of applying adhesive before coating and tearing off the adhesive after coating, thereby improving production efficiency. At the same time, the purpose of the cleaning process itself is to improve the energy density and space utilization of the battery. Based on this, GZTECH has launched the 200W/250W MOPA nanosecond pulse fiber laser which perfectly solves this process and meets customer requirements.

Pole piece window cutting

Battery pole cleaning

This type of cleaning process is currently mature with domestic technology. However, the lasers required for it are mostly high-power MOPA nanosecond pulse fiber lasers above 200W. With the advantage of batch delivery of high-power MOPA lasers, GZTECH has gained recognition from many customers for maintaining long-term stability during use.

Battery pole cleaning

MOPA welding of batteries

The main materials used for battery cell welding applications include copper, aluminum, nickel, steel, and so on. The high-power MOPA pulsed fiber laser can realize the welding of the same or dissimilar materials within 0.05~1.5mm, especially for the welding of dissimilar materials and the connection that requires no risk of weld penetration on the back side of the welding.

MOPA welding of batteries

 

Laser marking and coding

As the main traceability method of batteries, QR codes are indispensable on batteries. For example, the 2D code label on the metal shell is typically marked with a white code using Q-switched lasers. However, GZTECH has developed a new type of MOPA laser that can achieve non-destructive erasable white-on-black code marking, improving the coding yield and recognition rate of batteries.

Laser marking and coding

In addition to the marking on the top cover of the metal case, a layer of blue film is often pasted on the battery case. For this, GZTECH also launched a 5W/10W solid UV laser source to solve the problem of marking on non-metallic surfaces.

Battery recycling - blue film removal

The blue film serves as the "outer layer" of the battery cell and plays a protective role. If the blue film is not tightly adhered or if there are bubbles when it is applied to the battery cell, it may cause safety hazards due to damage over long-term use. Therefore, it needs to be removed and re-coated. Multi-mode lasers have a significant effect on reducing the viscosity of the film layer and not damaging the substrate. A 500W 12mJ multi-mode fiber laser has been introduced for use in this field.

Battery recycling - blue film removal

Battery recycling - battery cell disassembly

As the last stop of battery life or for cascaded utilization of batteries, module recycling encounters difficulties in battery cell disassembly. Compared to traditional mechanical disassembly methods, laser technology can achieve non-contact remote disassembly, ensuring the safety of both the batteries and operators. Laser disassembly also minimizes the impact on other parts of the battery, making it suitable for cascaded utilization.

GZTECH stood out among many selected companies, which indicates that the products of GZTECH have been recognized by a wide range of customers. This is an unparalleled honor for the company and it serves as motivation for GZTECH employees to more forward bravely and inject more advanced laser technology into the lithium battery industry.

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