BMW has begun series production of its sixth-generation high-voltage batteries in Shenyang, China, the third location in the company's global Gen6 battery network after Debrecen in Hungary and Irlbach-Straßkirchen in Germany. The locally built packs will supply the energy core of future Neue Klasse models produced in China.
The cylindrical cells at the heart of the new battery offer more than 20 percent higher energy density than the previous generation, with charging speed and range up by as much as 30 percent.
The Shenyang start-up is a key step in BMW's local-for-local strategy: batteries are built where the vehicles are made, shortening transport routes and insulating supply chains from disruption. Dr. Raymond Wittmann, the BMW AG board member for Production, said the China launch shows how quickly the group is industrialising its latest technology across the global network, creating a key prerequisite for the worldwide Neue Klasse ramp-up.
For Chinese buyers, the practical payoff should arrive with the first locally built Neue Klasse models. The battery is the single biggest lever on range and charging times, and the Gen6 chemistry is BMW's answer to the fast-charging, long-range packs Chinese rivals have made the benchmark in their home market.
How the cell-to-pack design works
The Gen6 battery abandons the conventional module layer: cylindrical cells are integrated directly into the housing, which uses the available space more efficiently and lets the pack be flexibly adapted to different vehicle models.
A central control unit called the Energy Master, developed in-house by BMW, sits directly on the battery and consolidates the essential power-supply and battery-management functions.
The rest of the global network
Two further assembly locations, Woodruff in the USA and San Luis Potosí in Mexico, are due to begin series production in the coming months. Uniform production, quality and safety standards apply worldwide, with each site contributing regional manufacturing and supplier expertise.
Production in Shenyang follows a tightly controlled process: cells are inspected, joined with cooling units into clusters, laser-cleaned and precision-welded to the contact system, then bonded by foaming into a single mechanical unit before the housing is sealed and the Energy Master fitted. Every pack passes a complete end-of-line test, with digital twins, data analytics and AI-supported inspection monitoring laser-welded joints in real time.
What it means for the Neue Klasse rollout
BMW has not announced launch dates, model names or range figures for the Chinese-market Neue Klasse cars that will use these batteries. The company has also not confirmed which plant in China will build them, though the Shenyang packs are explicitly destined for vehicles assembled locally.
The sequencing is telling, though: battery production now precedes vehicle production at every Gen6 site, so Shenyang coming online third, after the European plants, points to China joining the Neue Klasse ramp-up once the European launch is under way.
