BSLBATT launches automated laser welding production line: Promoting industrial electrification

The way we power industries is changing fast, driven by a surging global demand for cleaner energy. At BSLBATT, we believe that certain strategic decisions go beyond mere investment; they signal a clear commitment to a direction. Just as the inauguration of our new HQ marked our transformation into a global industry player, we're now taking another bold step forward. To meet the growing need for high-performance, custom-built, and regulation-compliant battery modules, BSLBATT is thrilled to announce the official launch of our cutting-edge automated battery module assembly line, featuring laser welding technology, at our headquarters in Huizhou, Guangdong, China!

Investing in the Future: Millions Fueling Production Excellence

At BSLBATT, growth is driven by foresight – anticipating industry needs and constantly investing in innovation. This significant upgrade, representing an investment of over $1 million, is central to our 2025 headquarters expansion. It adds over 3,000 square meters of smart production space, completely transforming how we make batteries.

Here's what this new automated line brings to the table:

• An impressive annual production capacity of over 60,000 lithium battery modules, ensuring we can quickly and consistently fulfill large orders.

• The flexibility to support 6 different prismatic lithium cell module configurations, making it much easier to customize products and offer a wider range of solutions tailored to your needs.

• Full integration of laser welding technology, which guarantees incredible precision and reliability in how the modules are put together.

By bringing this advanced manufacturing capability in-house, we're strengthening our entire production process. This gives us even greater control over product quality, speeds up delivery times, and helps us innovate faster.

The Power of Precision: Why We Chose Laser Welding

In industrial battery manufacturing, traditional assembly methods often involve individual cells placed inside a container and secured with spacers or basic supports. However, next-generation cells are increasingly compact with non-insulated aluminum cases, making secure placement without dedicated modules impractical. These older methods are particularly unsuitable for applications exposed to vibrations and often rely on welding small threaded inserts for connections, which compromises reliability and introduces higher contact resistance.

Our new production line uses industry-leading high-speed laser welding equipment, a huge leap forward in our manufacturing process. Laser welding allows us to uphold the highest quality standards while maintaining direct control over a critical aspect for the reliability of our batteries.

This precise and reliable connection method is essential for our battery modules to maintain stable performance and last a long time, even when they're working in the most challenging conditions.

The welding process delivers three key advantages:

• Safer and more reliable joints for every single battery cell, virtually eliminating human error.

• Robust cell fastening inside the module, providing incredible vibration resistance and durability for tough industrial jobs, like powering Forklifts, AGVs, Golf cart, Agricultural equipment, Construction vehicles and Aerial work platforms(Scissor lift).

• Minimal contact resistance between the cell and bus bar, which protects the battery cells' performance by reducing heat generated by current flow, helping extend the battery's overall lifespan.

Strategic Advantages: Boosting Our Edge

Launching this automated line isn't just about better technology; it's a strategic move that significantly boosts BSLBATT's core strengths, aligning with our philosophy of internalizing key competencies to ensure the highest standards in production.

Full Compliance with EU Battery Regulation 2023/1542

New EU battery regulations are here, setting strict rules for battery sustainability, traceability, safety, and end-of-life management. By assembling modules in-house, BSLBATT can control product standards right from the start. This ensures our lithium battery modules fully meet these tough requirements, making export to the European market much smoother for our partners.

Greater Flexibility for Every Customer Need

Our line is designed to assemble 6 distinct module configurations. This means BSLBATT can quickly respond to custom requests like never before. Whether you need standard industrial batteries or unique solutions for specialized applications like industrial equipment, commercial vehicles, large-scale Energy Storage Systems (ESS), or mining and heavy equipment, we can deliver precise and tailored services. This helps our partners accelerate their move towards electrification.

Reduced Supply Chain Risk, More Control

Bringing module assembly in-house significantly reduces our reliance on outside assemblers. This makes our supply chain much more resilient and ensures more stable delivery times. Recent global dynamics have underscored the critical role of direct production control in reducing lead times and overcoming sourcing challenges. Plus, it gives us complete direct control over the quality of our production.

Setting a New Production Standard: The Automated Lithium Cell Assembly Process

Located in Huizhou, Guangdong Province—a dynamic hub for innovation and manufacturing in China—this new line makes BSLBATT one of the few lithium battery manufacturers in the region with such large-scale, in-house module assembly capabilities. This achievement solidifies our position as a leader in smart manufacturing, the energy transition, and customer-focused electrification.

Our assembly line represents state-of-the-art automation technology comprising 4 critical stages, each ensuring the highest standards of quality and efficiency in the final product:

1. Automated Cell Loading and Inspection: The process begins with automated cell loading onto the assembly line. Once positioned, cells undergo a rigorous automated inspection using optical inspection systems and sensors to ensure compliance with quality standards, including checks for voltage, internal resistance, and potential physical defects.

2. Module Stacking: Robotic systems pick up inspected and selected cells, apply pads between them, and arrange them in sequence to form the desired module configuration. An aluminum containment structure is then added, which will secure the cells in place after undergoing laser welding.

3. Application of Additional Components and Laser Welding: Following the first welding stage, additional components—including bus bars for cell interconnection and connection terminals—are applied and subsequently laser welded.

4. Verification Tests: Upon completion of assembly, a comprehensive verification test is conducted to ensure the suitability and optimal functionality of the module. Safety tests are also performed to ensure against leaks and short circuits. Only modules that pass these tests are labeled and cleared for use in BSLBATT’s pack assembly lines.

Conclusion: Powering the Future, Uncompromising Quality for Customer Needs

As industries worldwide rapidly electrify, BSLBATT is taking bold steps to lead this energy revolution. This new automated production line marks a decisive step into the future, defined by uncompromising autonomy, flexibility, and quality. It strengthens our ability to respond with agility to market needs and deliver increasingly customized, efficient, and reliable solutions to our customers.

Choosing BSLBATT means partnering with a trusted leader in lithium battery innovation as we work together towards a more efficient and sustainable industrial future.