Factorial Unveils 40Ah All-Solid-State Battery Cells with Dry Coating Process

• Factorial’s first A-sample 40Ah Solstice™ cells showcase significant technical achievement in scaling up all-solid-state battery technology
• The cells are manufactured utilizing a novel dry cathode coating process that is more sustainable, energy-efficient, and cost-effective for battery manufacturing
• Solstice™ all-solid-state cells can boost energy density, up to 80%, progressing towards availability for electric mobility applications.

December 12, 2024 08:00 AM Eastern Standard Time

WOBURN, Mass.--(BUSINESS WIRE)--Factorial Inc. (Factorial), an industry leader in solid-state battery technology, announced today the company’s first Solstice™ all-solid-state battery cells have been scaled to achieve a 40Ah capacity. These automotive-relevant sized A-sample cells are manufactured with a novel dry cathode coating process and showcase the impressive energy density announced in September. This milestone demonstrates progress towards product availability for diverse electric mobility industries.

The 100% dry cathode is a novel battery manufacturing process that can eliminate all hazardous solvents in cathode coating. These solvents are not only carcinogenic but also require an energy intensive process to evaporate the chemicals in order to recycle them. In addition to dry coating, Solstice™ eliminates the need for the formation process due to its unique all-solid-state cell design. The coating and formation processes are typically the most energy intensive processes in lithium-ion battery manufacturing. Factorial’s use of the dry coating and all-solid-state chemistry innovations together lower operating costs, reduce energy consumption, and minimize battery production’s environmental impact.

“Breakthrough solid-state battery performance is only relevant if it can be scaled to a size that is viable for commercial use,” said Factorial Co-Founder and CEO Dr. Siyu Huang. “This achievement underscores our team’s technical leadership and unmatched expertise in bringing innovative battery technologies to the high standards of the automotive sector. At 40Ah capacity, our all-solid-state, Solstice™ cells demonstrate the technical maturity, process validation, and scalability required for commercial applications.”

Factorial developed the 40Ah Solstice™ cells at its advanced development center in Massachusetts utilizing custom equipment to establish an in-house dry cathode coating process. Results from lifecycle testing demonstrate that smaller prototypes have already reached over 2,000 cycles.

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