The development of Welion’s solid-state cell technology began at the Max Planck Institute for Solid State Research in Stuttgart, where founder Chen Liquan collaborated with Professor Dr. Werner Weppner in 1977, establishing the foundation for this innovation. Founded in 2016 and headquartered in Beijing, China, WELION is now a leading supplier of lithium-ion solid-state battery cells. With a production capacity exceeding 40 GWh across four facilities, we are committed to being your partner in delivering innovative and high-performance battery cell solutions. WELION is synonymous with enhanced performance and operational reliability, even in extreme conditions.

We have played a key role in shaping the concept of “intrinsic safety” within industry standards. Our products are ideal for light vehicles, aircraft, and stationary energy storage systems, offering exceptional energy density. Available in prismatic, pouch, and 4695 round cell formats, our cells provide energy capacities ranging from 50 Wh to 900 Wh per cell. With a focus on quality, safety, and performance, Welion continues to push the boundaries of battery technology to meet the evolving demands of tomorrow’s energy landscape.