Woodruff, South Carolina, USA. In December, the new BMW Group Plant Woodruff will begin series production of high-voltage batteries for the new fully-electric BMW iX5. As part of the vehicle’s world premiere, the company offered a first glimpse of its state-of-the-art manufacturing facilities. With AI-supported production processes, digital twins and virtual reality applications, the new plant is setting industry standards for the assembly of high-voltage batteries.

Site strengthens electromobility in the US and footprint in South Carolina

“Plant Woodruff plays a key role in the ramp-up of electromobility in the US,” said Raymond Wittman, member of the Board of Management of BMW AG responsible for Production. “With our Gen6 high-voltage battery, we’re not only taking a major technological leap – we are also setting new standards in production. In Woodruff, we are combining cutting-edge processes, artificial intelligence and the expertise of our employees to create a production facility designed for the highest quality.”

“With Plant Woodruff, we are further expanding our footprint in South Carolina and strengthening the close integration of battery and vehicle production,” said Robert Engelhorn, President and CEO of BMW Manufacturing Co., LLC. “This creates the ideal foundation for the next generation of fully electric BMW X models assembled at Plant Spartanburg.”

Intelligent production for maximum quality

The BMW Group has established state-of-the-art, intelligent and efficient production processes for its in-house developed sixth-generation (Gen6) high-voltage battery. The new cylindrical round cells are integrated directly into the high-voltage battery, based on the “cell-to-pack” principle. All production steps are continuously monitored inline and comprehensively documented in real time. In-house developed AI assistants and agents analyse this data and, together with more than 300 employees and 250 robots at Plant Woodruff, ensure the zero-defect battery production. At the same time, the extensive use of artificial intelligence enhances Overall Equipment Effectiveness (OEE) in production. Well before commissioning, digital twins of production and virtual reality applications support planning and employee training.

Training in a virtual factory

All production staff at Plant Woodruff complete a VR training program developed on site. Within a virtual factory, they can practice real manufacturing operations under realistic conditions. This virtual environment replicates the plant’s production lines in meticulous detail, requiring only a set of VR goggles and a PC. The training helps employees develop an understanding of relevant processes and builds confidence in operating the equipment before using the actual manufacturing systems for the first time.

Just three years from start of construction to series production

Following the official groundbreaking in June 2023, construction of the new plant began in September 2023. In September 2024, while construction was still under way, installation of the manufacturing equipment commenced. Preparations for production started in summer 2025, and the first test and pre-series batteries have been rolling off the assembly line since then. The series launch is scheduled for December 2026. “Plant Woodruff demonstrates how quickly we can scale a new battery concept to industrial production,” said Rich Everly, Vice President of Production at BMW Group Plant Woodruff. “The key factor is the synergy between a skilled and dedicated team and the continuous exchange of experience within the production network.”

Gen6 battery cells with reduced carbon footprint

The Gen6 battery cells used in the BMW iX5’s high-voltage battery include a high proportion of secondary materials in the cobalt, lithium and nickel content. Renewable energy is also used in the production of anode and cathode materials, as well as in cell manufacturing. Compared with the Gen5 cell used in the BMW iX, CO₂e emissions have been reduced by around 28 percent per watt-hour. Plant Woodruff does not use any fossil fuels during normal operations, while the site’s industrial trucks are powered by hydrogen.

Global production strategy: local for local

Installation of the Gen6 high-voltage batteries takes place at five new production facilities, which the BMW Group is building close to its vehicle plants, in line with its “local for local” principle. In addition to Woodruff, state-of-the-art high-voltage battery assembly plants are also being built in Irlbach-Straßkirchen (Lower Bavaria), Shenyang (China) and San Luis Potosí (Mexico). The latest generation of high-voltage batteries has been in series production in Debrecen, Hungary, since October 2025. This “local for local” approach strengthens regional infrastructure and existing facilities and helps secure jobs. The global production network for high-voltage batteries benefits from close collaboration between the German pilot plants and series production facilities worldwide.

How the BMW Group assembles its Gen6 high-voltage batteries

The BMW Group sources battery cells for its high-voltage batteries from leading cell manufacturers. The highest technical standards apply. Upon receipt of goods, additional measurements – such as voltage checks – are carried out. Next comes so-called cell clustering, where the battery cells are connected to coolers. This step ensures optimal insulation and cooling of the cells. The cell clusters and cell contact system are then laser-cleaned and welded with pinpoint precision. The inline inspection continuously monitors each weld seam in real time. An innovative foaming process follows, ensuring that all elements are protected as a mechanical unit. The hardened foam guarantees the safety, stability and durability of the high-voltage battery. The housing is then closed, sealed and riveted. In the final assembly step, the Energy Master – the central control unit – is installed onto the high-voltage battery. A permanently elastic sealing adhesive is applied to ensure a reliable seal. Finally, each high-voltage battery undergoes a 100% end-of-line inspection. From Woodruff, the high-voltage batteries are transported to Plant Spartanburg, located just 15 miles away.

The BMW iX5's high-voltage battery: 800-volt, with high energy content

The first battery-electric BMW iX5 is based on sixth-generation BMW eDrive technology, featuring round cells and 800-volt technology. With an available energy content of 144 kWh in the US and 141 kWh in the EU (net), the BMW iX5 60 xDrive boasts the largest high-voltage battery of any fully-electric BMW model to date. Propulsion is provided by e-drives on both the front and rear axles, and by the electric BMW xDrive all-wheel drive.

Munich/Parsdorf. With the Neue Klasse, the BMW Group is ushering in a new era of pure electric driving, starting series production end of 2025. The high-voltage battery is a key component in any electric vehicle. Before large-scale series production can begin, manufacturing processes must be developed and pre-series batteries put through their paces. This takes place at the BMW Group’s pilot plants for high-voltage batteries in Parsdorf and Hallbergmoos and at the Research and Innovation Centre (FIZ) in Munich. “Our pilot plants for high-voltage batteries are strengthening Germany’s capacity for innovation,” says Milan Nedeljković, Member of the Board of Management of BMW AG responsible for Production. “They are laying the groundwork for the new series plants worldwide, ensuring a smooth ramp-up of high-voltage battery production.” To produce high-voltage batteries for the sixth generation of BMW eDrive (Gen6), the company is establishing five assembly sites across three continents: in Irlbach-Straßkirchen (Lower Bavaria), Debrecen (Hungary), Shenyang (China), San Luis Potosí (Mexico) and Woodruff (USA).

Quality is key: Consistent zero-defect approach
For the in-house developed Gen6 high-voltage battery, the BMW Group is implementing intelligent, state-of-the-art production processes using the latest technologies. “For production of our high-voltage batteries, we are pursuing a consistent zero-defect approach,” explains Markus Fallböhmer, head of Battery Production at BMW AG. “Highly intelligent, AI-supported quality checks are integrated into the production process to help us achieve this.” Because quality is key: In bodies for the Neue Klasse, the high-voltage battery serves as a structural component (“pack to open body”). The new cylindrical round cells are integrated directly into the high-voltage battery (“cell to pack”). With its innovative production processes, BMW Group’s pilot and series plants are setting new industry standards for battery production. Examples include, among the consistent zero-defect approach, the use of digital production twins for tasks such as employee training, as well as leveraging expanded AI databases to optimise supply and production logistics. All production steps undergo seamless in-line monitoring with comprehensive data storage, enabling maximum process stability and continuous data-based optimisation.

Pilot plants up close: Parsdorf, Hallbergmoos and Munich (FIZ)
The largest pilot plant for Gen6 high-voltage batteries is located in Parsdorf, where over 350 employees have been building initial prototypes since 2023. Since mid-2024, some of the high-voltage batteries produced there have already been delivered to the vehicle plant in Debrecen, Hungary, where they are installed in test vehicles for the Neue Klasse. A pre-series plant for high-voltage batteries is also located near Munich Airport. Since summer 2024, the site in Hallbergmoos has been developing manufacturing technologies for high-voltage battery assembly. Around 200 employees are working at this small-scale battery factory. The Hallbergmoos site serves as a model for the series production at Plant Woodruff near Spartanburg, South Carolina, US. At the Munich Research and Innovation Centre (FIZ), another 200 employees are manufacturing and testing prototypes and smaller module variants of the high-voltage battery. Several floors of the recently opened Aeroacoustics and E-drive Centre (AEZ) are dedicated to this work.

Series launch of five battery plants in under two years
The systems and processes developed at the Bavarian pilot plants will be rolled out to the series plants worldwide. Within less than two years, series production will ramp up at five locations across three continents. In line with its "local-for-local" principle, the BMW Group has positioned its Gen6 high-voltage battery assembly sites as close as possible to its vehicle plants. This approach safeguards production, even in the event of unforeseen political and economic developments. It will also strengthen existing production sites, while preserving and creating jobs. Series production of the BMW iX3, the first model of the Neue Klasse, will get underway at Plant Debrecen late this year, alongside high-voltage battery manufacturing at the same site. The launch in Debrecen will be followed by the battery assembly plants in Shenyang, Irlbach-Straßkirchen, Woodruff and San Luis Potosí.

How the BMW Group builds Gen6 high-voltage batteries
The BMW Group sources battery cells for its high-voltage batteries from leading cell manufacturers, who produce the cells to the company's specifications. The highest technical standards apply. Upon receipt of goods, additional measurements – such as voltage checks – are carried out. Next comes cell clustering, where the battery cells are connected to coolants. This step ensures optimal insulation and cooling of the cells. The cell clusters and cell contact system are then laser-cleaned and welded with pinpoint precision. The in-line inspection continuously monitors each weld seam in real time. An innovative foaming process follows, ensuring that all elements are protected as a mechanical unit. The foam thus guarantees the safety, stability and durability of the high-voltage battery. The housing is then closed, sealed and riveted. In the final assembly step, the Energy Master – the central control unit – is installed onto the high-voltage battery. A permanently elastic sealing adhesive is applied to ensure a reliable seal. Finally, each high-voltage battery undergoes a 100% end-of-line inspection to ensure quality, safety and function.


If you have any questions, please contact:

Corporate Communications

Christian Marxt
Press spokesperson, Production Network, Powertrain and High-Voltage Batteries
Cell phone: +49-151-601-79158
Email: Christian.Marxt@bmwgroup.com

Sandra Schillmöller
Head of Communications Production Network BMW Group
Cell phone: +49-151-601-12225
Email: Sandra.Schillmoeller@bmwgroup.com

Media website: https://newsroom.bmwgroup.com/global/en
Email: presse@bmwgroup.com