February 13, 2026: US solid-state battery developer QuantumScape has launched pilot production at its Eagle Line in Silicon Valley.
The company said on February 4 that Eagle Line, at its San Jose facility in California, forms the blueprint for its ‘QS system’ — QuantumScape’s solid-state lithium-metal battery technology.
The QS system incorporates the firm’s ‘Cobra’ process, a scalable method for producing the proprietary QS separator.
Upon ramp-up, the Eagle Line will produce QS battery cells to support customer sampling and testing, technology demonstrations, and product integration efforts.
QuantumScape said it also plans to demonstrate scalable production of QS technology to enable licensing partners to manufacture at gigawatt-hour scale in their own facilities.
Meanwhile, the Eagle Line will serve as a platform to develop and test further technology and process improvements at meaningful scale.
Siva Sivaram, president and CEO of QuantumScape, said: “This is the next major step in the commercialization of our technology.”
In July 2024, QuantumScape and PowerCo, the battery subsidiary of Volkswagen Group, announced a deal to industrialize QuantumScape’s next-generation solid-state lithium-metal battery tech.



