QS PowerBlock
Modular solid-state lithium-metal battery reference design for in-rack AI data-center energy storage, including 800VDC architectures and module, shelf, and rack formats. QuantumScape said Oct. 8, 2026 that prototype tests and modeled configurations showed 4x power density and 5x runtime versus the OCP Open Rack V3 specification, with thermal stability above 300 C in third-party and customer tests versus about 180 C for a conventional lithium-ion reference. The company said it joined OCP and will display the design at the Oct. 12-15 2026 OCP Global Summit. Customer talks are company-described; no commercial order was disclosed.





