QuantumScape Corp.'s stock price surged 9.87% intraday on Tuesday, marking a significant upward movement for the solid-state battery developer.

The rally appears driven by a major technological milestone: the company successfully completed the first live demonstration of its QSE-5 solid-state lithium battery powering a real vehicle at the Munich Auto Show. The demonstration featured a modified Ducati V21L racing motorcycle, with the battery system designed by Audi experts under Volkswagen Group, validating the technology's real-world applicability beyond laboratory settings.

Further supporting the bullish sentiment, the company confirmed its core pilot production line, Eagle Line, has fully commenced trial operations and achieved small-batch production of QSE-5 cells. Management plans to continue ramping output to meet downstream automaker requirements, marking a progression from R&D to commercial validation and establishing a key industrialization inflection point for the solid-state battery sector.