Even after a battery has gone through the entire manufacturing process, it is not immediately shipped. At the final stage before shipment, a verification process is required to ensure that the battery meets its designed performance and quality standards. This stage is known as EOL (End of Line).
At LG Energy Solution, each battery is thoroughly inspected during the EOL process prior to shipment, securing quality reliability through this rigorous verification. This time, we met with Wiktoria Skrzypczak, who is in charge of the EOL process at the Wrocław facility, to learn more.
Q. Please introduce yourself and explain the technology you are responsible for.
Hello, I am Wiktoria Skrzypczak from Module Process Team 1. I have been working at LG Energy Solution’s Wrocław facility for about three years and am currently serving as a Senior Process Engineer.
I am responsible for the EOL (End of Line) process. EOL is the stage where modules are connected to measurement equipment (probes) to test their electrical performance. By repeatedly charging and discharging the battery under specified conditions, we verify whether key performance indicators meet the required standards.
Recently, I have also been overseeing vision system operations. A vision system is a technology that uses cameras to automatically inspect a product’s external appearance and quality condition. It examines whether the battery meets its designed specifications and ensures that the equipment used in this process is always maintained in a stable operating condition.
Q. What is your role in the EOL process?
In the EOL process, my role is to verify not only that the battery operates safely and properly, but also that it has been manufactured in accordance with its design specifications. I analyze various parameters and detect potential defects through electrical performance testing.
Q. What is the most important factor in performing the EOL process?
In the EOL process, the key factor is how quickly we respond when an issue arises on the production line. If equipment in any single process fails, production speed can slow down significantly or, in some cases, come to a complete stop. Therefore, every minute and every second is directly linked to product productivity and quality.
Q. Could you share a memorable achievement from your work?
When I was working as a technician, there was one task I found particularly challenging. It involved replacing a specific component that wore out very quickly. The task was repetitive and time-consuming, and the production line had to be stopped in order to carry it out. The component itself was also expensive.
After becoming an engineer, this was the first area I improved. By completely redesigning the component structure, we now conduct a regular monthly inspection and perform simple adjustments only when necessary, making the workflow far more efficient. It may seem like a small change, but I am truly proud to have led this improvement myself.
Q. What motivated you to join LG Energy Solution?
From a young age, I was interested in machinery, electronics, and repairs, often exploring them together with my father. I have always enjoyed working hands-on—touching and fixing things myself. I wanted to work in a role where I could directly handle machines on-site, resolve issues, and create tangible improvements.
In this regard, LG Energy Solution, with its large-scale production facilities and numerous technical leaders across different fields, was a place where I wanted to see firsthand how things are done and learn directly from experience.
Q. What do you think is the greatest strength of LG Energy Solution?
I believe it is the ability to integrate the ideas and experiences of diverse people into one unified force. LG Energy Solution is not limited to a specific department or single organization; teams across various regions are organically connected. I have experience conducting training for LG Energy Solution employees in the United States and Canada, and I collaborate closely on a daily basis with Korean colleagues working in Poland. Within our multinational team, we also communicate freely and continue our work together across diverse backgrounds.
As each person’s experience and perspective come together, I believe this is how the quality created by LG Energy Solution is ultimately realized.
We have now explored the EOL process at LG Energy Solution. The EOL process plays a critical role in verifying, at the final stage before shipment, that a battery meets its designed standards and in securing the level of quality customers can trust. Through its technological capabilities to manage even the final stage prior to shipment with thorough precision, LG Energy Solution will continue to maintain the highest level of battery quality.
