Researchers Advance Anode-Free Solid-State Batteries for Safer, Longer-Lasting Energy Storage

Princeton-led studies uncover manufacturing challenges and solutions for next-generation batteries promising over 500-mile EV range.

Princeton researchers, as part of the MUSIC project, are developing anode-free solid-state batteries that could outperform lithium-ion batteries in safety, energy density, and efficiency.
These batteries, which eliminate the anode, could reduce costs, simplify production, and enable EVs to travel over 500 miles on a single charge, though practical deployment remains a challenge.
Studies reveal that pressure applied during manufacturing impacts battery performance, with low pressure causing uneven ion plating and high pressure leading to fractures in the materials.
Applying thin interlayers of carbon and small silver nanoparticles between the current collector and electrolyte was found to improve ion flow and battery stability.
Scaling these innovations for mass production remains a hurdle, but researchers are optimistic about eventual integration into the clean energy market.