Factorial Inc., a leader in solid-state battery technology, has announced the development of its first Solstice™ all-solid-state battery cells with a 40Ah capacity. These automotive-grade A-sample cells are produced using a novel dry cathode coating process and showcase the impressive energy density previously announced. This milestone signifies progress towards the availability of the technology for diverse electric mobility sectors.
The 100% dry cathode coating is an innovative battery manufacturing process that eliminates the use of hazardous solvents. These solvents are not only carcinogenic but also require energy-intensive procedures to evaporate and recycle the chemicals. By employing dry coating and eliminating the formation process—due to the unique all-solid-state cell design—Factorial reduces operating costs, lowers energy consumption, and minimizes the environmental impact of battery production. Typically, the coating and formation stages are the most energy-consuming in lithium-ion battery manufacturing.
“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.”
Developed at Factorial’s advanced development center in Massachusetts, the 40Ah Solstice cells utilize custom equipment to establish an in-house dry cathode coating process. Lifecycle testing shows that smaller prototypes have already achieved over 2,000 cycles.
“The dry electrode coating process is transforming battery manufacturing, introducing significant benefits – such as improved cell performance, faster lead times, and lower costs,” said Factorial CTO and Co-Founder Alex Yu. “Factorial is a leader in advancing this novel manufacturing process for larger-sized cells, which has been a significant challenge for the rest of the market on the road to unlocking one of the most important innovations in battery manufacturing. Coupled with the long cycle life and high energy density, Factorial’s Solstice all-solid-state battery cell is poised to give advancements in safety, range, and cost that automakers are looking for.”
This announcement follows the launch of Solstice, developed in partnership with Mercedes-Benz to complement Factorial’s proprietary FEST® (Factorial Electrolyte System Technology). Beyond passenger vehicles, Solstice can be utilized in applications such as energy storage, consumer electronics, and commercial vehicles.
About Factorial Inc.: Founded and headquartered in the United States, Factorial is at the forefront of solid-state battery technology, developing solutions that offer longer range per charge, increased safety, and cost competitiveness with conventional lithium-ion batteries. The company’s proprietary solid-state platforms, FEST® (Factorial Electrolyte System Technology) and Solstice, utilize electrolyte innovations that enable safe and reliable cell performance with high-capacity cathode and anode materials. Factorial’s FEST® solid-state batteries are designed to integrate seamlessly with existing manufacturing processes, ensuring scalability and efficiency. The company has established joint development agreements with leading global automakers, including Mercedes-Benz, Stellantis, Hyundai Motor Company, and Kia Corporation.
Source: Business Wire
