battery

Nanotechnology

Manganese cathodes could boost lithium-ion battery performance

A new process for manganese-based battery materials allows researchers to use larger particles, pictured here with a scanning electron microscope. Credit: Han-Min Hau/Berkeley Lab and University of California, Berkeley Rechargeable lithium-ion batteries are increasingly being used in devices such as smartphones, laptops, electric vehicles and energy storage systems, but supplies of nickel and cobalt, which are often used in the…