Spongy metal energises lithium–oxygen batteries

By Katrina Krämer2017-05-24T12:55:00

Nanoporous nickel cathodes for lithium oxygen batteries are ultralight, shown here balanced on flower stamens.

Source: © American Chemical Society

An ultra-light nickel cathode boosts performance and lifetime of promising battery technology

A porous metal electrode so light that it can be balanced on a flower could help unlock the potential of lithium–oxygen batteries. With a theoretical energy density close to that of petrol, this type of battery could one day power electric cars.