An outstanding new electrolyte gives Li-ion and lithium-sulphur batteries the ability to perform well at freezing cold and scorching hot temperatures while still packing a lot of energy.
An intensifying feud between shareholders of the Tenke Fungurume mine may lead a court-appointed administrator to block its exports of copper and cobalt.
After a brutal second quarter, investors in the world’s 50 biggest mining companies are in full retreat as metal prices slump and uncertainty grips the sector.