A new approach to recycling lithium-ion batteries could reshape how critical materials are recovered, offering a cleaner and more efficient path forward at a time of soaring global demand. Speaking today in the QAMSS lecture series, Prof. Elza Bontempi from the University of Brescia, Italy, unveiled a microwave-based process that challenges conventional recycling methods and promises significant environmental benefits.
As electric vehicles and renewable energy systems expand rapidly, pressure on supply chains for essential raw materials such as lithium, cobalt and manganese continues to intensify. Traditional recycling techniques, namely pyrometallurgical and hydrometallurgical processes, are often energy-intensive and rely on harsh chemicals, raising both environmental and economic concerns.
Bontempi’s method instead uses a selective microwave-assisted carbothermic process to recover valuable metals from end-of-life batteries. By targeting specific materials with precision heating, the technique reduces overall energy consumption while avoiding the need for aggressive chemical treatments. The recovered elements can then be reintroduced into manufacturing cycles, helping to close the loop in battery production.
The implications are significant. Beyond reducing waste, the technology aligns with broader circular economy goals and could strengthen resilience within the European battery sector. Its potential scalability also suggests it may move beyond the laboratory and into industrial application in the near future.
With demand for sustainable solutions accelerating, innovations like this signal a shift toward more responsible resource management, one that could prove critical in supporting the global transition to clean energy.