QuantumScape Unveils Osprey, an Open All-Solid-State Battery Platform: Sulfide Cathode Cells Cycle 1,000 Times at One Atmosphere, Charging from 10 Percent to 80 Percent in Five Minutes
San Jose, California — QuantumScape Corporation announced Osprey, its next-generation open platform for all-solid-state batteries, via GlobeNewswire on November 11, 2026. The company said Osprey cells have delivered the first public data demonstrating a sulfide-based cathode cycling 1,000 times under just one atmosphere of pressure, a capability it called unmatched and necessary for automotive solid-state batteries.
Osprey pairs the proprietary QS ceramic separator and anode-free lithium-metal design with a solid cathode, creating an all-solid-state cell. Osprey builds on the company QSE platform and opens new licensing and co-development options for current QS customers, while expanding the offering to developers of sulfide-based all-solid-state batteries.
In early testing, the company reported four results: a cycle life of 1,000 full charge cycles with about 80 percent capacity retention; fast charging from 10 percent to 80 percent in five minutes; an operating requirement of only one atmosphere of pressure; and operation to below minus 20 degrees Celsius. The company said the all-solid cathode, paired with its ceramic separator, also enables projected energy densities up to about 1,100 watt-hours per liter. More information, including test results and conditions, is in a new white paper.
Dr. Siva Sivaram, president and CEO of QS, was quoted in the release. The company said it is already working with partners across the automotive industry on development using the Osprey platform, and that cells based on the QSE platform are shipping to customers today. All figures follow the text of the QuantumScape release dated November 11, 2026.
Source: QuantumScape
Published by GSM · USA (original Chinese edition)
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