Nickel and zinc may not spring to mind when most people think of critical minerals, but as far as the United States is concerned, they both are, writes Andy Home.
A newly developed technique by University of Surrey and the University of São Paulo promises to improve renewable energy storage by making better supercapacitors.
A report by CSIRO states that unsophisticated models based on current supply levels and basic recycling rates promote mischaracterizations of the real opportunities in both metal mining and recycling.