QuantumScape introduces QS PowerBlock for AI racks

QuantumScape introduced the QS PowerBlock on Oct. 8, 2026 as a modular solid-state lithium-metal reference design for in-rack AI data-center storage, including 800VDC formats. The company said prototype tests and modeled configurations showed 4x power density and 5x runtime versus the OCP Open Rack V3 spec, and thermal stability above 300 C versus about 180 C for a conventional lithium-ion reference; it said final performance depends on product design and real-world conditions. QuantumScape said it joined OCP and will show the design at the Oct. 12-15 OCP Global Summit; customer talks are company-described and no commercial deployment was announced.