Lithium Battery Automated Module Assembly Line

Flash Battery, an Italian company founded in 2012 and specialized in the engineering and production of high-performance lithium batteries for industrial use, has announced the launch of its new laser-welding automated module assembly line, reinforcing its leadership in both the national and international markets. The result of an investment of over €6 million, the new line is the core of the company’s recent headquarters expansion, which added 2,200 square meters dedicated to a fully automated area for battery module assembly. This technologically advanced department is designed to house the entire welding and mechanical integration process within a controlled environment. The annual production capacity reaches 90,000 modules, making this not only the most advanced but also the most productive line in Italy for assembling prismatic cell modules.

Centralized production expertise

Flash Battery has chosen to internalize and develop all key process skills within its HQ: from its proprietary Battery Management System to mechanical and electrical design, process validation, and predictive maintenance. With the integration of this new module assembly line, the company finalizes its in-house production consolidation process, now also directly controlling welding and assembly activities previously outsourced to external suppliers. Except for the cells – sourced from top global manufacturers – every phase is now managed and supervised directly by Flash Battery.

This integrated management model allows the company to deliver fully tailored solutions aligned with each customer’s application needs, maintaining consistent standards of quality and performance, even in complex and dynamic industries. “Bringing battery module assembly in-house means going directly to the source of the supply chain,” said Marco Righi, CEO and Founder of Flash Battery. “For cells, we rely on leading global suppliers, selecting multiple providers for each type in order to increase supply chain reliability and enhance our negotiating power. Recent geopolitical and economic developments have confirmed the importance of having direct control over production to reduce lead times and supply issues.”

Automation and proprietary technology for superior reliability

The new assembly line is engineered to quickly switch between configurations, managing thirteen module variants with changeover times of less than ten minutes. This enables Flash Battery to respond quickly and accurately to even the most specific customer requirements, supporting the creation of optimized electric systems without compromising on time or quality. This adaptive production capability becomes a clear competitive advantage.

Laser welding is also a strategic technological choice: it ensures stronger mechanical and electrical joints, greater resistance to vibrations, and lower energy dispersion. This is essential for achieving stable and reliable performance, particularly in demanding industrial applications.

The line operates through four core automated phases:
1. Cell loading and automated inspection, using optical inspection systems and high-precision sensors;
2. Module formation, with robotic stacking and placement of components into a containment structure for subsequent welding;
3. Laser welding of frames and bus bars, which connect the cells for a durable and efficient electrical connection;
4. Final compliance testing, including safety, insulation, and mechanical resistance tests. Only modules that pass all tests are labeled and sent to the battery pack assembly lines.

“With this new line, we are taking a decisive step toward a more autonomous, efficient, and reliable production model,” concludes Righi. “Integrating production skills allows us to respond promptly to customer needs and deliver tailored solutions with top-tier quality and performance. This is a key competitive advantage in a constantly evolving market.” With this in-house autonomy and the upcoming launch of European gigafactories dedicated to LFP (Lithium Iron Phosphate) cell – a safe, stable, and cobalt-free lithium technology – Flash Battery will soon be able to offer customers a fully European supply chain.

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Diverse Battery Solutions Help any Warehouse

Although any building that stores raw materials or manufactured goods before distribution is called a warehouse, there are vast differences from one building to another. For instance, the largest warehouses are the size of 90 football fields and store vast quantities of products. Others are small with limited available space. In an ever-competitive world, all are likely to be under pressure to maximise productivity, whilst maintaining a safe working environment. This can be realised through the implementation of technology, such as powered carts known as mobile workstations. Here, Robert Brown, Marketing Executive at industrial battery manufacturer Ultralife, explores the benefits that carts can bring to any size of warehouse and the crucial role that battery solutions play.

In online retail, next-day delivery is becoming increasingly expected by customers, so a large warehouse is likely to be tasked with processing hundreds of thousands of products per day, making every second count. For example, one staff member may need to apply around 1,000 labels per day to boxes scattered throughout the building. However, the nearest desktop computer may be several minutes’ walk away.

Therefore, it is not time efficient to have the operative walk to a desktop computer every time they need to print new labels, but there is likely to be room for a large cart, containing a desktop computer and printer, to be wheeled around so that they can print labels right next to the box they are sticking them to.

When wheeling a cart, it is not practical to keep unplugging the devices it is carrying from AC mains and, in a large warehouse, the nearest plug socket could be some distance from the packages it is processing. An alternative to AC mains is to attach a portable power solution, that uses batteries, to the side of the cart and use wires to connect it to each of the devices that are being powered, for example desktop computers and printers.

These devices may require more power than can be delivered by a single battery, so some power systems – such as Ultralife’s X5 – give the option to use multiple batteries. In Ultralife’s X5 Power System, one or two 276Wh hot-swappable Lithium Iron Phosphate smart batteries can be harnessed to give an output of 120VAC 60Hz, which can effectively power devices such as computers, monitors, USB hubs, scanners, and printers up to a maximum of 150W.

From a safety perspective, large warehouses are likely to house many bulky packages weighing over 25kg, which would be unsafe for a warehouse worker to carry to a desktop computer for processing. Therefore, a mobile cart can be used to process goods on the receiving dock before they are picked up by a forklift truck and placed in a rack several meters above the ground.

As there may not be an AC mains supply in the loading dock, and trailing wires could get tangled up between the boxes, battery-powered carts are well-suited for this application. Although the X5 Power System is the perfect way to bring safety and productivity benefits to large warehouses, where space is not a problem, smaller warehouses may not have room for a large cart and power solution to be used but, equally, may not be processing such a high volume of parcels.

In those cases, small pole/mobile carts may be used instead, transporting a barcode scanner and a tablet computer that only require USB-C or USB-A power. For these warehouses, Ultralife has developed the X5-LITE charging solution. This utilizes the same 276Wh hot-swappable Lithium Iron Phosphate smart battery as the X5 Power System but in a small battery cradle.

In a small warehouse, the time needed to walk between packages and a desktop computer station may be considerably less, so it may seem like this does not have such a big impact on productivity. However, it can add up over time, as 15 seconds every hour equates to 36.5 hours a year, which is nearly a full working week for a warehouse operative.

With regards to safety, trailing wires and extension cords can be hazardous particularly in a small warehouse where there is not much room to get around. As well as not requiring an AC mains cord, battery-powered carts can house the cables for the devices they are transporting inside a plastic housing. So, although not all warehouses are the same, they can all benefit from using the latest battery technology to power carts that improve safety and productivity.

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