Factorial Energy, a U.S.-based company, has made significant strides in the development of semi-solid state batteries, a critical step towards fully solid-state batteries for electric vehicles. The company recently announced the delivery of their high-energy density semi-solid state battery cells to Mercedes-Benz for further testing and development. Here are the key details:
Key Milestones and Collaborations
- Delivery to Mercedes: Factorial Energy has delivered the first B-sample cells to Mercedes-Benz. These cells will undergo extensive testing and integration into battery modules and packs for further development.
- Collaborations: Factorial has attracted major automotive partners including Stellantis, Hyundai, and Mercedes-Benz, highlighting the industry’s interest in advanced battery technologies .
Technological Advancements
- High-Energy Density: The semi-solid state battery cells feature Factorial’s proprietary Factorial Electrolyte System Technology (FEST), which includes a lithium metal anode, semi-solid electrolyte, and high-capacity cathode. These cells offer an energy density of up to 391 Wh/kg, significantly higher than the 300 Wh/kg limit of current lithium-ion batteries and much greater than the 160 Wh/kg typical of lithium iron phosphate batteries .
- Safety and Efficiency: The semi-solid electrolyte used in these batteries enhances safety compared to traditional liquid electrolytes in lithium-ion batteries. Factorial claims that their technology can provide a 30% reduction in weight and volume for a 90 kWh battery pack, potentially enabling electric vehicles to achieve ranges exceeding 1000 km on a single charge .
Production and Future Plans
- Manufacturing Facility: In October 2023, Factorial Energy opened a new manufacturing facility in Massachusetts, which, once fully operational, will be the largest solid-state battery production facility in the U.S. with a capacity of 200 MW. This facility is crucial for scaling up production and commercializing the new battery technology .
- Partnership with LG Chem: In April 2023, Factorial entered into an agreement with LG Chem to accelerate the development of solid-state batteries, further enhancing their research and production capabilities .
The delivery of these advanced battery cells to Mercedes-Benz marks a significant milestone in the journey towards more efficient, safe, and high-performing batteries for electric vehicles. As testing and development continue, these batteries could play a pivotal role in the future of electric mobility.
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