Solid Power Begins Commissioning MOBIUS Continuous Solid Electrolyte Pilot Line

Solid Power Announces Significant Advancement in Commercial Pathway, Commissioning MOBIUS™ Continuous Electrolyte Manufacturing Line

• Continuous manufacturing pilot line for sulfide-based solid electrolyte designed to increase Solid Power’s annual electrolyte production capacity at Thornton, Colorado facility by 150%.
• Commissioning of MOBIUS™ is underway following substantial completion of construction with materials now being introduced into the line.
• Advances Solid Power toward continuous production, which will support commercial readiness and potential cost curve advancements.
• Primary powder processing site acceptance testing (SAT) is complete. Full SAT is expected by the end of the month, and operational startup is planned for the fourth quarter of 2026.

LOUISVILLE, Colo.–(BUSINESS WIRE)–Solid Power, Inc. (Nasdaq: SLDP), a leading U.S.-based developer of solid-state battery technology, today announced that it has begun commissioning MOBIUS™, its continuous manufacturing pilot line for sulfide-based solid electrolyte. Previously referred to as the SP2.5 Continuous Manufacturing Pilot Line, MOBIUS™ has reached substantial completion of construction at Solid Power’s SP2 facility in Thornton, Colorado, and materials are now being introduced into the line. MOBIUS™ supports Solid Power’s objective to manufacture and sell electrolyte to Tier 1 battery manufacturers and automotive original equipment manufacturers (OEMs).

John Van Scoter, President and Chief Executive Officer of Solid Power, Inc, said:

Bringing the promise of MOBIUS™ to fruition is a proud moment for our team and a critical step in positioning Solid Power for commercial readiness and long-term stockholder value creation,

“The name MOBIUS™ reflects what sets this line apart: continuous production designed to deliver the process control, repeatability, and scale our partners expect from a commercial electrolyte supplier. With MOBIUS™, we expect to increase our electrolyte production capacity at SP2 in Thornton, Colorado, by 150%, and we look forward to bringing the line into full operation and supporting material qualification with our partners.”

Solid Power has also completed SAT for primary powder processing on MOBIUS™ and expects to complete full SAT by the end of October 2026. SAT is an activity performed with Solid Power and the equipment manufacturer in parallel to confirm that the equipment works as specified and designed before progressing into production. With commissioning underway, Solid Power continues to work toward plant validation and operational startup, which remain planned for the fourth quarter of 2026.

MOBIUS™ is designed to add 45 metric tons of solid electrolyte production capacity per year. Following commissioning, total electrolyte production capacity at the SP2 facility is expected to reach approximately 75 metric tons per year. MOBIUS™ will operate alongside the facility’s existing batch production lines, using what Solid Power believes is the world’s first continuous manufacturing process for sulfide-based solid electrolyte.

MOBIUS™ plays a central role in Solid Power’s commercial readiness. Solid Power believes continuous manufacturing is fundamental to achieving the volume, consistency, and cost required for commercial electrolyte supply, and expects continuous production to deliver tighter process control and more consistent output than batch processing. MOBIUS™ will also support material qualification with automotive and cell manufacturing partners as Solid Power advances toward commercial electrolyte supply.

MOBIUS™ was built as part of a project supported by the U.S. Department of Energy (DOE) through an assistance agreement providing up to $50 million in federal funding.

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Solid Power Announces Significant Advancement in Commercial Pathway, Commissioning MOBIUS™ Continuous Electrolyte Manufacturing Line, source