German project 'SHERLOCK' targets uniform black mass standards for battery recycling

Battery recycling faces a significant hurdle due to inconsistent quality of black mass, the crushed material from spent lithium-ion batteries that holds valuable metals. A German research initiative, named SHERLOCK, has been launched to address this by developing standardized quality classes for this crucial intermediate product.

The project, led by the Fraunhofer Institute for Silicate Research (ISC), brings together industrial and academic partners to define clear criteria for black mass. These standards are expected to streamline downstream recovery processes, ultimately making recycling more economically viable and efficient. This move responds to growing demand for recycled battery materials as Europe pushes toward a circular economy for batteries.

By establishing uniform quality grades, SHERLOCK aims to reduce uncertainty among recyclers and material buyers, fostering trust and investment in advanced recycling technologies. The outcomes could set benchmarks beyond Germany, influencing future European regulations. The project is expected to run for several years, with results feeding into the broader EU battery sustainability framework.