Revolutionary Protein-Based Battery Charges in Seconds and Lasts Decades

Researchers have developed a groundbreaking battery that combines speed, durability, and sustainability. The technology uses bovine serum albumin (BSA), a cattle farming byproduct, to create a carbon aerogel embedded with metal nanoclusters. Unlike conventional batteries, this hybrid system charges in seconds and could last for decades without degradation.

The new battery relies on iron and nickel—two of Earth's most abundant metals—instead of scarce materials like lithium or cobalt. Its design merges the traits of a supercapacitor and a traditional battery, delivering a specific power of 18 kilowatts per kilogram. While its energy density of 47 watt-hours per kilogram makes it too heavy for smartphones or electric cars, its true strength lies in stationary applications.

The carbon aerogel at its core is produced through pyrolysis, forming a lattice of microscopic chambers with vast surface area for reactions. Iron nanoclusters within this structure outperform established materials such as ruthenium oxide. Testing shows the battery can endure over 12,000 charge cycles, with potential for 30,000, while maintaining exceptional stability.

BSA, the protein used as a template, is already a major industrial byproduct. The global BSA market is projected to reach $6.57 billion by 2035, driven by demand in pharmaceuticals, diagnostics, and biotechnology. Key suppliers include South America, Australia, and New Zealand, where cattle farming provides high-quality serum. This abundance ensures a steady, low-cost source for scaling up battery production.

The battery's rapid charging and decades-long lifespan make it ideal for grid storage, such as balancing renewable energy from solar or wind farms. By avoiding rare metals and using widely available materials, the technology offers a scalable solution for the energy transition. Its long-term reliability could reduce costs and improve efficiency in large-scale power systems.