Mercedes-Benz and U.S. battery startup Factorial are collaborating on a solid-state battery that aims to significantly boost electric vehicle (EV) range by the end of the decade. This new battery, named Solstice, is expected to extend EV range by about 80% compared to today’s average, with an energy density of 450 Watt-hours per kilogram, reports Reuters.

The Promise of Solid-State Batteries

Solid-state batteries have long been hailed as a game-changer for EVs. They promise to reduce fire risk and allow for lighter, lower-cost cars that can travel further on a single charge. However, developing these batteries at scale has proven challenging for major automakers and their partners.

Factorial has already made strides with a quasi-solid-state battery, which is currently being tested by automakers, including Mercedes, and is expected to hit the road in EVs by 2026. Mercedes has invested in Factorial, which raised $200 million in 2022, alongside competitors like Stellantis y Hyundai.

The Advantages of Solid-State Technology

In a solid-state battery, the liquid electrolyte is replaced with a solid substitute, reducing fire risk and shrinking battery pack size. Factorial CEO Siyu Huang emphasized that solid-state batteries won’t need the expensive, heavy cooling systems required for today’s battery packs, allowing automakers to cut costs further.

“We are not just focused on the cost of (battery) cell, but the cost of the overall vehicle,” she said.

Mercedes Chief Technology Officer Markus Schaefer noted that Factorial’s solid-state batteries could provide a 40% improvement in energy density over Mercedes’ current high-performance batteries. This would enable Mercedes to either significantly reduce EV battery pack size—the most expensive and heaviest component—or offer long-range electric cars for those who want them.

“There are some challenges that you have to get under control, but … we have great engineering solutions to address them,” Schaefer said.

De cara al futuro

Mercedes is also working with Taiwanese battery maker ProLogium on solid-state batteries and researching high-silicon anodes as an alternative solution to increase EV battery density. Schaefer believes that Factorial’s goal of developing Solstice at scale by the end of the decade is realistic.

EVXL’s Take

The collaboration between Mercedes and Factorial highlights the ongoing innovation in the EV industry. As solid-state batteries become more viable, we can expect to see significant improvements in range, safety, and cost-effectiveness. This development aligns with the broader trend of automakers investing in cutting-edge tecnología de baterías to stay competitive. For more on the latest in EV technology, check out our recent articles on Tesla.

What are your thoughts on the potential of solid-state batteries for EVs? Leave your comments below!

Foto cortesía de Mercedes-Benz.